--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Algorithms/PyramidReader.h	Sat Oct 22 21:48:33 2016 +0200
@@ -0,0 +1,96 @@
+/**
+ * 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/>.
+ **/
+
+
+#pragma once
+
+#include "../Inputs/ITiledPyramid.h"
+#include "../DicomizerParameters.h"
+
+#include <map>
+#include <memory>
+
+namespace OrthancWSI
+{
+  // This class is not thread-safe
+  class PyramidReader : public boost::noncopyable
+  {
+  private:
+    class SourceTile;
+
+    typedef std::pair<unsigned int, unsigned int>  Location;
+    typedef std::map<Location, SourceTile*>        Cache;
+
+    ITiledPyramid&  source_;
+    unsigned int    level_;
+    unsigned int    levelWidth_;
+    unsigned int    levelHeight_;
+    unsigned int    sourceTileWidth_;
+    unsigned int    sourceTileHeight_;
+    unsigned int    targetTileWidth_;
+    unsigned int    targetTileHeight_;
+    const DicomizerParameters& parameters_;
+
+    Cache           cache_;
+
+    std::auto_ptr<Orthanc::ImageAccessor>  outside_;
+
+
+    Orthanc::ImageAccessor& GetOutsideTile();
+
+    void CheckTileSize(const Orthanc::ImageAccessor& tile) const;
+
+    void CheckTileSize(const std::string& tile) const;
+
+    SourceTile& AccessSourceTile(const Location& location);
+
+    Location MapTargetToSourceLocation(unsigned int tileX,
+                                       unsigned int tileY);
+
+  public:
+    PyramidReader(ITiledPyramid& source,
+                  unsigned int level,
+                  unsigned int targetTileWidth,
+                  unsigned int targetTileHeight,
+                  const DicomizerParameters& parameters);
+
+    ~PyramidReader();
+
+    const DicomizerParameters& GetParameters() const
+    {
+      return parameters_;
+    }
+
+    ImageCompression GetImageCompression() const
+    {
+      return source_.GetImageCompression();
+    }
+
+    Orthanc::PixelFormat GetPixelFormat() const
+    {
+      return source_.GetPixelFormat();
+    }
+
+    const std::string* GetRawTile(unsigned int tileX,
+                                  unsigned int tileY);
+
+    Orthanc::ImageAccessor GetDecodedTile(unsigned int tileX,
+                                          unsigned int tileY);  
+  };
+}