--- a/Core/ImageFormats/ImageAccessor.cpp	Mon Jun 30 17:44:38 2014 +0200
+++ b/Core/ImageFormats/ImageAccessor.cpp	Tue Jul 01 12:01:58 2014 +0200
@@ -168,7 +168,7 @@
     pitch_ = pitch;
     buffer_ = const_cast<void*>(buffer);
 
-    assert(GetBytesPerPixel(format_) * width_ <= pitch_);
+    assert(GetBytesPerPixel() * width_ <= pitch_);
   }
 
 
@@ -185,7 +185,7 @@
     pitch_ = pitch;
     buffer_ = buffer;
 
-    assert(GetBytesPerPixel(format_) * width_ <= pitch_);
+    assert(GetBytesPerPixel() * width_ <= pitch_);
   }
 
 

--- a/Core/ImageFormats/ImageAccessor.h	Mon Jun 30 17:44:38 2014 +0200
+++ b/Core/ImageFormats/ImageAccessor.h	Tue Jul 01 12:01:58 2014 +0200
@@ -62,6 +62,11 @@
       return format_;
     }
 
+    unsigned int GetBytesPerPixel() const
+    {
+      return ::Orthanc::GetBytesPerPixel(format_);
+    }
+
     unsigned int GetWidth() const
     {
       return width_;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugins/Samples/GdcmDecoding/CMakeLists.txt	Tue Jul 01 12:01:58 2014 +0200
@@ -0,0 +1,65 @@
+cmake_minimum_required(VERSION 2.8)
+
+project(GdcmDecoding)
+
+SET(ALLOW_DOWNLOADS ON CACHE BOOL "Allow CMake to download packages")
+SET(USE_SYSTEM_BOOST ON CACHE BOOL "Use the system version of Boost")
+SET(USE_SYSTEM_GOOGLE_LOG OFF CACHE BOOL "Use the system version of Google Log")
+
+set(ORTHANC_ROOT ${CMAKE_SOURCE_DIR}/../../..)
+
+if (${CMAKE_COMPILER_IS_GNUCXX})
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
+  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-undefined")
+endif()
+
+include(${ORTHANC_ROOT}/Resources/CMake/DownloadPackage.cmake)
+include(${ORTHANC_ROOT}/Resources/CMake/BoostConfiguration.cmake)
+include(${ORTHANC_ROOT}/Resources/CMake/GoogleLogConfiguration.cmake)
+
+find_package(GDCM REQUIRED)
+if (GDCM_FOUND)
+  include(${GDCM_USE_FILE})
+  set(GDCM_LIBRARIES 
+    gdcmCommon
+    gdcmDICT
+    gdcmDSED
+    gdcmIOD
+    gdcmjpeg12
+    gdcmjpeg16
+    gdcmjpeg8
+    gdcmMEXD
+    gdcmMSFF
+    )
+else(GDCM_FOUND)
+  message(FATAL_ERROR "Cannot find GDCM, did you set GDCM_DIR?")
+endif(GDCM_FOUND)
+
+
+include_directories(
+  ${ORTHANC_ROOT}/Plugins/OrthancCPlugin/
+  ${ORTHANC_ROOT}/OrthancCppClient/SharedLibrary/Laaw
+  )
+add_library(GdcmDecoding SHARED
+  Plugin.cpp
+  OrthancContext.cpp
+
+  # Sources from Orthanc
+  ${GOOGLE_LOG_SOURCES}
+  ${ORTHANC_ROOT}/Core/ChunkedBuffer.cpp
+  ${ORTHANC_ROOT}/Core/Enumerations.cpp
+  ${ORTHANC_ROOT}/Core/ImageFormats/ImageAccessor.cpp
+  ${ORTHANC_ROOT}/Core/ImageFormats/ImageBuffer.cpp
+  ${ORTHANC_ROOT}/Core/ImageFormats/ImageProcessing.cpp
+  ${ORTHANC_ROOT}/Core/OrthancException.cpp
+  ${ORTHANC_ROOT}/Core/Toolbox.cpp
+  ${ORTHANC_ROOT}/Resources/ThirdParty/base64/base64.cpp
+  ${ORTHANC_ROOT}/Resources/ThirdParty/md5/md5.c
+  ${THIRD_PARTY_SOURCES}
+  )
+target_link_libraries(GdcmDecoding ${GDCM_LIBRARIES})
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+  target_link_libraries(GdcmDecoding pthread dl rt)
+endif()

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugins/Samples/GdcmDecoding/OrthancContext.cpp	Tue Jul 01 12:01:58 2014 +0200
@@ -0,0 +1,158 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
+ * Belgium
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ **/
+
+
+#include "OrthancContext.h"
+
+#include <stdexcept>
+
+
+void OrthancContext::Check()
+{
+  if (context_ == NULL)
+  {
+    throw std::runtime_error("The Orthanc plugin context is not initialized");
+  }
+}
+
+
+OrthancContext& OrthancContext::GetInstance()
+{
+  static OrthancContext instance;
+  return instance;
+}
+
+
+OrthancContext::~OrthancContext()
+{
+  if (context_ != NULL)
+  {
+    throw std::runtime_error("The Orthanc plugin was not properly finalized");
+  }
+}
+
+
+void OrthancContext::ExtractGetArguments(Arguments& arguments,
+                                         const OrthancPluginHttpRequest& request)
+{
+  Check();
+  arguments.clear();
+
+  for (uint32_t i = 0; i < request.getCount; i++)
+  {
+    arguments[request.getKeys[i]] = request.getValues[i];
+  }
+}
+
+
+void OrthancContext::LogError(const std::string& s)
+{
+  Check();
+  OrthancPluginLogError(context_, s.c_str());
+}
+
+
+void OrthancContext::LogWarning(const std::string& s)
+{
+  Check();
+  OrthancPluginLogWarning(context_, s.c_str());
+}
+
+
+void OrthancContext::LogInfo(const std::string& s)
+{
+  Check();
+  OrthancPluginLogInfo(context_, s.c_str());
+}
+  
+
+void OrthancContext::Register(const std::string& uri,
+                              OrthancPluginRestCallback callback)
+{
+  Check();
+  OrthancPluginRegisterRestCallback(context_, uri.c_str(), callback);
+}
+
+
+void OrthancContext::GetDicomForInstance(std::string& result,
+                                         const std::string& instanceId)
+{
+  Check();
+  OrthancPluginMemoryBuffer buffer;
+    
+  if (OrthancPluginGetDicomForInstance(context_, &buffer, instanceId.c_str()))
+  {
+    throw std::runtime_error("No DICOM instance with Orthanc ID: " + instanceId);
+  }
+
+  if (buffer.size == 0)
+  {
+    result.clear();
+  }
+  else
+  {
+    result.assign(reinterpret_cast<char*>(buffer.data), buffer.size);
+  }
+
+  OrthancPluginFreeMemoryBuffer(context_, &buffer);
+}
+
+
+void OrthancContext::CompressAndAnswerPngImage(OrthancPluginRestOutput* output,
+                                               const Orthanc::ImageAccessor& accessor)
+{
+  Check();
+
+  OrthancPluginPixelFormat format;
+  switch (accessor.GetFormat())
+  {
+    case Orthanc::PixelFormat_Grayscale8:
+      format = OrthancPluginPixelFormat_Grayscale8;
+      break;
+
+    case Orthanc::PixelFormat_Grayscale16:
+      format = OrthancPluginPixelFormat_Grayscale16;
+      break;
+
+    case Orthanc::PixelFormat_SignedGrayscale16:
+      format = OrthancPluginPixelFormat_SignedGrayscale16;
+      break;
+
+    case Orthanc::PixelFormat_RGB24:
+      format = OrthancPluginPixelFormat_RGB24;
+      break;
+
+    case Orthanc::PixelFormat_RGBA32:
+      format = OrthancPluginPixelFormat_RGBA32;
+      break;
+
+    default:
+      throw std::runtime_error("Unsupported pixel format");
+  }
+
+  OrthancPluginCompressAndAnswerPngImage(context_, output, format, accessor.GetWidth(),
+                                         accessor.GetHeight(), accessor.GetPitch(), accessor.GetConstBuffer());
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugins/Samples/GdcmDecoding/OrthancContext.h	Tue Jul 01 12:01:58 2014 +0200
@@ -0,0 +1,84 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
+ * Belgium
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ **/
+
+
+#pragma once
+
+#include <OrthancCPlugin.h>
+
+#include "../../../Core/ImageFormats/ImageBuffer.h"
+
+#include <map>
+#include <string>
+#include <boost/noncopyable.hpp>
+
+
+class OrthancContext : public boost::noncopyable
+{
+private:
+  OrthancPluginContext* context_;
+
+  OrthancContext() : context_(NULL)
+  {
+  }
+
+  void Check();
+
+public:
+  typedef std::map<std::string, std::string>  Arguments;
+
+  static OrthancContext& GetInstance();
+
+  ~OrthancContext();
+
+  void Initialize(OrthancPluginContext* context)
+  {
+    context_ = context;
+  }
+
+  void Finalize()
+  {
+    context_ = NULL;
+  }
+
+  void ExtractGetArguments(Arguments& arguments,
+                           const OrthancPluginHttpRequest& request);
+
+  void LogError(const std::string& s);
+
+  void LogWarning(const std::string& s);
+
+  void LogInfo(const std::string& s);
+  
+  void Register(const std::string& uri,
+                OrthancPluginRestCallback callback);
+
+  void GetDicomForInstance(std::string& result,
+                           const std::string& instanceId);
+
+  void CompressAndAnswerPngImage(OrthancPluginRestOutput* output,
+                                 const Orthanc::ImageAccessor& accessor);
+};

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugins/Samples/GdcmDecoding/Plugin.cpp	Tue Jul 01 12:01:58 2014 +0200
@@ -0,0 +1,221 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
+ * Belgium
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ **/
+
+
+#include <map>
+#include <string>
+#include <stdexcept>
+#include <sstream>
+
+#include "OrthancContext.h"
+#include "../../../Core/ImageFormats/ImageProcessing.h"
+
+#include <gdcmReader.h>
+#include <gdcmImageReader.h>
+
+
+static bool GetOrthancPixelFormat(Orthanc::PixelFormat& format,
+                                  const gdcm::Image& image)
+{
+  if (image.GetPlanarConfiguration() != 0 && 
+      image.GetPixelFormat().GetSamplesPerPixel() != 1)
+  {
+    OrthancContext::GetInstance().LogError("Planar configurations are not supported");
+    return false;
+  }
+
+  if (image.GetPixelFormat().GetSamplesPerPixel() == 1)
+  {
+    switch (image.GetPixelFormat().GetScalarType())
+    {
+      case gdcm::PixelFormat::UINT8:
+        format = Orthanc::PixelFormat_Grayscale8;
+        return true;
+
+      case gdcm::PixelFormat::UINT16:
+        format = Orthanc::PixelFormat_Grayscale16;
+        return true;
+
+      case gdcm::PixelFormat::INT16:
+        format = Orthanc::PixelFormat_SignedGrayscale16;
+        return true;
+
+      default:
+        return false;
+    }
+  }
+  else if (image.GetPixelFormat().GetSamplesPerPixel() == 3 &&
+           image.GetPixelFormat().GetScalarType() == gdcm::PixelFormat::UINT8)
+  {
+    format = Orthanc::PixelFormat_RGB24;
+  }
+  else if (image.GetPixelFormat().GetSamplesPerPixel() == 4 &&
+           image.GetPixelFormat().GetScalarType() == gdcm::PixelFormat::UINT8)
+  {
+    format = Orthanc::PixelFormat_RGBA32;
+  }
+
+  return false;
+}
+
+
+ORTHANC_PLUGINS_API int32_t DecodeImage(OrthancPluginRestOutput* output,
+                                        const char* url,
+                                        const OrthancPluginHttpRequest* request)
+{
+  std::string instance(request->groups[0]);
+  std::string outputFormat(request->groups[1]);
+  OrthancContext::GetInstance().LogWarning("Using GDCM to decode instance " + instance);
+
+  // Download the request DICOM instance from Orthanc into a memory buffer
+  std::string dicom;
+  OrthancContext::GetInstance().GetDicomForInstance(dicom, instance);
+
+  // Prepare a memory stream over the DICOM instance
+  std::stringstream stream(dicom);
+
+  // Parse the DICOM instance using GDCM
+  gdcm::ImageReader imageReader;
+  imageReader.SetStream(stream);
+  if (!imageReader.Read())
+  {
+    OrthancContext::GetInstance().LogError("GDCM cannot extract an image from this DICOM instance");
+    return -1;  // Error
+  }
+
+  gdcm::Image& image = imageReader.GetImage();
+
+  // Log information about the decoded image
+  char tmp[1024];
+  sprintf(tmp, "Image format: %dx%d %s with %d color channel(s)", image.GetRows(), image.GetColumns(), 
+          image.GetPixelFormat().GetScalarTypeAsString(), image.GetPixelFormat().GetSamplesPerPixel());
+  OrthancContext::GetInstance().LogWarning(tmp);
+
+  // Create a read-only accessor to the bitmap decoded by GDCM
+  Orthanc::PixelFormat format;
+  if (!GetOrthancPixelFormat(format, image))
+  {
+    OrthancContext::GetInstance().LogError("This sample plugin does not support this image format");
+    return -1;  // Error
+  }
+
+  Orthanc::ImageAccessor decodedImage;
+  std::vector<char> decodedBuffer(image.GetBufferLength());
+
+  if (decodedBuffer.size())
+  {
+    image.GetBuffer(&decodedBuffer[0]);
+    unsigned int pitch = image.GetColumns() * ::Orthanc::GetBytesPerPixel(format);
+    decodedImage.AssignWritable(format, image.GetColumns(), image.GetRows(), pitch, &decodedBuffer[0]);
+  }
+  else
+  {
+    // Empty image
+    decodedImage.AssignWritable(format, 0, 0, 0, NULL);
+  }
+
+
+  // Convert the pixel format from GDCM to the format requested by the REST query
+  Orthanc::ImageBuffer converted;
+  converted.SetWidth(decodedImage.GetWidth());
+  converted.SetHeight(decodedImage.GetHeight());
+
+  if (outputFormat == "preview")
+  {
+    if (format == Orthanc::PixelFormat_RGB24 ||
+        format == Orthanc::PixelFormat_RGBA32)
+    {
+      // Do not rescale color image
+      converted.SetFormat(Orthanc::PixelFormat_RGB24);
+    }
+    else
+    {
+      converted.SetFormat(Orthanc::PixelFormat_Grayscale8);
+
+      // Rescale the image to the [0,255] range
+      int64_t a, b;
+      Orthanc::ImageProcessing::GetMinMaxValue(a, b, decodedImage);
+
+      float offset = -a;
+      float scaling = 255.0f / static_cast<float>(b - a);
+      Orthanc::ImageProcessing::ShiftScale(decodedImage, offset, scaling);
+    }
+  }
+  else if (outputFormat == "image-uint8")
+  {
+    converted.SetFormat(Orthanc::PixelFormat_Grayscale8);
+  }
+  else if (outputFormat == "image-uint16")
+  {
+    converted.SetFormat(Orthanc::PixelFormat_Grayscale16);
+  }
+  else if (outputFormat == "image-int16")
+  {
+    converted.SetFormat(Orthanc::PixelFormat_SignedGrayscale16);
+  }
+  else
+  {
+    OrthancContext::GetInstance().LogError("Unknown output format: " + outputFormat);
+    return -1;
+  }
+
+  Orthanc::ImageAccessor convertedAccessor(converted.GetAccessor());
+  Orthanc::ImageProcessing::Convert(convertedAccessor, decodedImage);
+
+
+  // Compress the converted image as a PNG file
+  OrthancContext::GetInstance().CompressAndAnswerPngImage(output, convertedAccessor);
+
+  return 0;  // Success
+}
+
+
+extern "C"
+{
+  ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context)
+  {
+    OrthancContext::GetInstance().Initialize(context);
+    OrthancContext::GetInstance().LogWarning("Initializing GDCM decoding");
+    OrthancContext::GetInstance().Register("/instances/([^/]+)/(preview|image-uint8|image-uint16|image-int16)", DecodeImage);
+    return 0;
+  }
+
+  ORTHANC_PLUGINS_API void OrthancPluginFinalize()
+  {
+    OrthancContext::GetInstance().LogWarning("Finalizing GDCM decoding");
+    OrthancContext::GetInstance().Finalize();
+  }
+
+  ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
+  {
+    return "gdcm-decoding";
+  }
+
+  ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
+  {
+    return "1.0";
+  }
+}

--- a/Resources/CMake/GoogleLogConfiguration.cmake	Mon Jun 30 17:44:38 2014 +0200
+++ b/Resources/CMake/GoogleLogConfiguration.cmake	Tue Jul 01 12:01:58 2014 +0200
@@ -65,22 +65,22 @@
   if (CMAKE_COMPILER_IS_GNUCXX)
     if ("${CMAKE_SYSTEM_VERSION}" STREQUAL "LinuxStandardBase")
       execute_process(
-        COMMAND patch utilities.cc ${CMAKE_SOURCE_DIR}/Resources/Patches/glog-utilities-lsb.diff
+        COMMAND patch utilities.cc ${ORTHANC_ROOT}/Resources/Patches/glog-utilities-lsb.diff
         WORKING_DIRECTORY ${GOOGLE_LOG_SOURCES_DIR}/src
         )
     else()
       execute_process(
-        COMMAND patch utilities.cc ${CMAKE_SOURCE_DIR}/Resources/Patches/glog-utilities.diff
+        COMMAND patch utilities.cc ${ORTHANC_ROOT}/Resources/Patches/glog-utilities.diff
         WORKING_DIRECTORY ${GOOGLE_LOG_SOURCES_DIR}/src
         )
     endif()
 
     execute_process(
-      COMMAND patch port.h ${CMAKE_SOURCE_DIR}/Resources/Patches/glog-port-h.diff 
+      COMMAND patch port.h ${ORTHANC_ROOT}/Resources/Patches/glog-port-h.diff 
       WORKING_DIRECTORY ${GOOGLE_LOG_SOURCES_DIR}/src/windows
       )
     execute_process(
-      COMMAND patch port.cc ${CMAKE_SOURCE_DIR}/Resources/Patches/glog-port-cc.diff 
+      COMMAND patch port.cc ${ORTHANC_ROOT}/Resources/Patches/glog-port-cc.diff 
       WORKING_DIRECTORY ${GOOGLE_LOG_SOURCES_DIR}/src/windows
       )
   endif()
@@ -91,18 +91,18 @@
     if ("${CMAKE_SYSTEM_VERSION}" STREQUAL "LinuxStandardBase")
       # Install the specific configuration for LSB SDK
       configure_file(
-        ${CMAKE_SOURCE_DIR}/Resources/CMake/GoogleLogConfigurationLSB.h
+        ${ORTHANC_ROOT}/Resources/CMake/GoogleLogConfigurationLSB.h
         ${GOOGLE_LOG_SOURCES_DIR}/src/config.h
         COPYONLY)
     elseif ("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
       # Install the specific configuration for Mac OS
       configure_file(
-        ${CMAKE_SOURCE_DIR}/Resources/CMake/GoogleLogConfigurationDarwin.h
+        ${ORTHANC_ROOT}/Resources/CMake/GoogleLogConfigurationDarwin.h
         ${GOOGLE_LOG_SOURCES_DIR}/src/config.h
         COPYONLY)
     else()
       configure_file(
-        ${CMAKE_SOURCE_DIR}/Resources/CMake/GoogleLogConfiguration.h
+        ${ORTHANC_ROOT}/Resources/CMake/GoogleLogConfiguration.h
         ${GOOGLE_LOG_SOURCES_DIR}/src/config.h
         COPYONLY)
     endif()