--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Outputs/InMemoryTiledImage.cpp	Sat Oct 22 21:48:33 2016 +0200
@@ -0,0 +1,171 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "InMemoryTiledImage.h"
+
+#include "../ImageToolbox.h"
+#include "../Orthanc/Core/Logging.h"
+#include "../Orthanc/Core/OrthancException.h"
+
+namespace OrthancWSI
+{
+  static void CheckLevel(unsigned int level)
+  {
+    if (level != 0)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
+    }
+  }
+
+
+  InMemoryTiledImage::InMemoryTiledImage(Orthanc::PixelFormat format,
+                                         unsigned int countTilesX,
+                                         unsigned int countTilesY,
+                                         unsigned int tileWidth,
+                                         unsigned int tileHeight) :
+    format_(format),
+    countTilesX_(countTilesX),
+    countTilesY_(countTilesY),
+    tileWidth_(tileWidth),
+    tileHeight_(tileHeight)
+  {
+  }
+
+
+  InMemoryTiledImage::~InMemoryTiledImage()
+  {
+    for (Tiles::iterator it = tiles_.begin(); it != tiles_.end(); ++it)
+    {
+      delete it->second;
+    }
+  }
+
+
+  unsigned int InMemoryTiledImage::GetCountTilesX(unsigned int level) const
+  {
+    CheckLevel(level);
+    return countTilesX_;
+  }
+
+
+  unsigned int InMemoryTiledImage::GetCountTilesY(unsigned int level) const
+  {
+    CheckLevel(level);
+    return countTilesY_;
+  }
+
+
+  unsigned int InMemoryTiledImage::GetLevelWidth(unsigned int level) const
+  {
+    CheckLevel(level);
+    return tileWidth_ * countTilesX_;
+  }
+
+
+  unsigned int InMemoryTiledImage::GetLevelHeight(unsigned int level) const
+  { 
+    CheckLevel(level);
+    return tileHeight_ * countTilesY_;
+  }
+
+
+  bool InMemoryTiledImage::ReadRawTile(std::string& tile,
+                                       unsigned int level,
+                                       unsigned int tileX,
+                                       unsigned int tileY)
+  {
+    CheckLevel(level);
+    return false;  // Unavailable
+  }
+
+
+  Orthanc::ImageAccessor* InMemoryTiledImage::DecodeTile(unsigned int level,
+                                                         unsigned int tileX,
+                                                         unsigned int tileY)
+  {
+    CheckLevel(level);
+
+    if (tileX >= countTilesX_ ||
+        tileY >= countTilesY_)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
+    }
+
+    {
+      boost::mutex::scoped_lock lock(mutex_);
+
+      Tiles::const_iterator it = tiles_.find(std::make_pair(tileX, tileY));
+      if (it != tiles_.end())
+      {
+        return new Orthanc::ImageAccessor(*it->second);
+      }
+      else
+      {
+        LOG(ERROR) << "The following tile has not been set: " << tileX << "," << tileY;
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+      }
+    }
+  }
+
+
+  void InMemoryTiledImage::WriteRawTile(const std::string& raw,
+                                        ImageCompression compression,
+                                        unsigned int level,
+                                        unsigned int tileX,
+                                        unsigned int tileY)
+  {
+    std::auto_ptr<Orthanc::ImageAccessor> decoded(ImageToolbox::DecodeTile(raw, compression));
+    EncodeTile(*decoded, level, tileX, tileY);
+  }
+      
+
+  void InMemoryTiledImage::EncodeTile(const Orthanc::ImageAccessor& tile,
+                                      unsigned int level,
+                                      unsigned int tileX,
+                                      unsigned int tileY)
+  {
+    CheckLevel(level);
+
+    if (tileX >= countTilesX_ ||
+        tileY >= countTilesY_)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
+    }
+
+    {
+      boost::mutex::scoped_lock lock(mutex_);
+
+      Tiles::iterator it = tiles_.find(std::make_pair(tileX, tileY));
+      if (it == tiles_.end())
+      {
+        tiles_[std::make_pair(tileX, tileY)] = ImageToolbox::Clone(tile);
+      }
+      else
+      {
+        if (it->second)
+        {
+          delete it->second;
+        }
+
+        it->second = ImageToolbox::Clone(tile);
+      }
+    }
+  }
+}