annotate UnitTestsSources/ImageTests.cpp @ 1602:292bce3f54ed

JpegWriter
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 01 Sep 2015 13:06:39 +0200
parents UnitTestsSources/PngTests.cpp@9f66a12eb8fc
children 1f5d6a2f9638
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "PrecompiledHeadersUnitTests.h"
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34 #include "gtest/gtest.h"
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35
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36 #include <stdint.h>
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37 #include "../Core/ImageFormats/ImageBuffer.h"
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38 #include "../Core/ImageFormats/PngReader.h"
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39 #include "../Core/ImageFormats/PngWriter.h"
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40 #include "../Core/ImageFormats/JpegWriter.h"
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41 #include "../Core/Toolbox.h"
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42 #include "../Core/Uuid.h"
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43
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44
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45 TEST(PngWriter, ColorPattern)
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46 {
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47 Orthanc::PngWriter w;
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48 int width = 17;
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49 int height = 61;
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50 int pitch = width * 3;
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51
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52 std::vector<uint8_t> image(height * pitch);
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53 for (int y = 0; y < height; y++)
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54 {
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55 uint8_t *p = &image[0] + y * pitch;
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56 for (int x = 0; x < width; x++, p += 3)
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57 {
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58 p[0] = (y % 3 == 0) ? 255 : 0;
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59 p[1] = (y % 3 == 1) ? 255 : 0;
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60 p[2] = (y % 3 == 2) ? 255 : 0;
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61 }
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62 }
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63
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64 w.WriteToFile("UnitTestsResults/ColorPattern.png", width, height, pitch, Orthanc::PixelFormat_RGB24, &image[0]);
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65
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66 std::string f, md5;
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67 Orthanc::Toolbox::ReadFile(f, "UnitTestsResults/ColorPattern.png");
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68 Orthanc::Toolbox::ComputeMD5(md5, f);
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69 ASSERT_EQ("604e785f53c99cae6ea4584870b2c41d", md5);
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70 }
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71
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72 TEST(PngWriter, Gray8Pattern)
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73 {
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74 Orthanc::PngWriter w;
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75 int width = 17;
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76 int height = 256;
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77 int pitch = width;
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78
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79 std::vector<uint8_t> image(height * pitch);
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80 for (int y = 0; y < height; y++)
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81 {
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82 uint8_t *p = &image[0] + y * pitch;
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83 for (int x = 0; x < width; x++, p++)
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84 {
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85 *p = y;
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86 }
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87 }
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88
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89 w.WriteToFile("UnitTestsResults/Gray8Pattern.png", width, height, pitch, Orthanc::PixelFormat_Grayscale8, &image[0]);
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90
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91 std::string f, md5;
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92 Orthanc::Toolbox::ReadFile(f, "UnitTestsResults/Gray8Pattern.png");
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93 Orthanc::Toolbox::ComputeMD5(md5, f);
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94 ASSERT_EQ("5a9b98bea3d0a6d983980cc38bfbcdb3", md5);
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95 }
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96
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97 TEST(PngWriter, Gray16Pattern)
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98 {
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99 Orthanc::PngWriter w;
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100 int width = 256;
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101 int height = 256;
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102 int pitch = width * 2 + 16;
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103
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104 std::vector<uint8_t> image(height * pitch);
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105
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106 int v = 0;
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107 for (int y = 0; y < height; y++)
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108 {
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109 uint16_t *p = reinterpret_cast<uint16_t*>(&image[0] + y * pitch);
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110 for (int x = 0; x < width; x++, p++, v++)
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111 {
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112 *p = v;
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113 }
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114 }
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115
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116 w.WriteToFile("UnitTestsResults/Gray16Pattern.png", width, height, pitch, Orthanc::PixelFormat_Grayscale16, &image[0]);
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117
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118 std::string f, md5;
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119 Orthanc::Toolbox::ReadFile(f, "UnitTestsResults/Gray16Pattern.png");
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120 Orthanc::Toolbox::ComputeMD5(md5, f);
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121 ASSERT_EQ("0785866a08bf0a02d2eeff87f658571c", md5);
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122 }
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123
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124 TEST(PngWriter, EndToEnd)
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125 {
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126 Orthanc::PngWriter w;
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127 unsigned int width = 256;
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128 unsigned int height = 256;
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129 unsigned int pitch = width * 2 + 16;
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130
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131 std::vector<uint8_t> image(height * pitch);
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132
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133 int v = 0;
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134 for (unsigned int y = 0; y < height; y++)
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135 {
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136 uint16_t *p = reinterpret_cast<uint16_t*>(&image[0] + y * pitch);
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137 for (unsigned int x = 0; x < width; x++, p++, v++)
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138 {
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139 *p = v;
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140 }
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141 }
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142
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143 std::string s;
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144 w.WriteToMemory(s, width, height, pitch, Orthanc::PixelFormat_Grayscale16, &image[0]);
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145
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146 {
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147 Orthanc::PngReader r;
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148 r.ReadFromMemory(s);
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149
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150 ASSERT_EQ(r.GetFormat(), Orthanc::PixelFormat_Grayscale16);
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151 ASSERT_EQ(r.GetWidth(), width);
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152 ASSERT_EQ(r.GetHeight(), height);
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153
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154 v = 0;
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155 for (unsigned int y = 0; y < height; y++)
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156 {
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157 const uint16_t *p = reinterpret_cast<const uint16_t*>((const uint8_t*) r.GetConstBuffer() + y * r.GetPitch());
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158 ASSERT_EQ(p, r.GetConstRow(y));
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159 for (unsigned int x = 0; x < width; x++, p++, v++)
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160 {
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161 ASSERT_EQ(*p, v);
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162 }
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163 }
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164 }
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165
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166 {
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167 Orthanc::Toolbox::TemporaryFile tmp;
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168 Orthanc::Toolbox::WriteFile(s, tmp.GetPath());
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169
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170 Orthanc::PngReader r2;
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171 r2.ReadFromFile(tmp.GetPath());
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172
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173 ASSERT_EQ(r2.GetFormat(), Orthanc::PixelFormat_Grayscale16);
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174 ASSERT_EQ(r2.GetWidth(), width);
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175 ASSERT_EQ(r2.GetHeight(), height);
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176
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177 v = 0;
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178 for (unsigned int y = 0; y < height; y++)
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179 {
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180 const uint16_t *p = reinterpret_cast<const uint16_t*>((const uint8_t*) r2.GetConstBuffer() + y * r2.GetPitch());
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181 ASSERT_EQ(p, r2.GetConstRow(y));
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182 for (unsigned int x = 0; x < width; x++, p++, v++)
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183 {
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184 ASSERT_EQ(*p, v);
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185 }
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186 }
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187 }
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188 }
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189
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190
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191
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192
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193 TEST(JpegWriter, Basic)
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194 {
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195 Orthanc::ImageBuffer img(16, 16, Orthanc::PixelFormat_Grayscale8);
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196 Orthanc::ImageAccessor accessor = img.GetAccessor();
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197 for (unsigned int y = 0, value = 0; y < img.GetHeight(); y++)
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198 {
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199 uint8_t* p = reinterpret_cast<uint8_t*>(accessor.GetRow(y));
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200 for (unsigned int x = 0; x < img.GetWidth(); x++, p++)
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201 {
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202 *p = value++;
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203 }
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204 }
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205
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206 Orthanc::JpegWriter w;
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207 w.WriteToFile("UnitTestsResults/hello.jpg", accessor);
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208
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209 std::string s;
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210 w.WriteToMemory(s, accessor);
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211 Orthanc::Toolbox::WriteFile(s, "UnitTestsResults/hello2.jpg");
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212 }