--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Orthanc/Plugins/Samples/GdcmDecoder/GdcmDecoderCache.h	Wed Dec 02 16:27:28 2015 +0100
@@ -0,0 +1,53 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2015 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 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "GdcmImageDecoder.h"
+#include "OrthancImageWrapper.h"
+
+#include <boost/thread.hpp>
+
+
+namespace OrthancPlugins
+{
+  class GdcmDecoderCache : public boost::noncopyable
+  {
+  private:
+    boost::mutex   mutex_;
+    std::auto_ptr<OrthancPlugins::GdcmImageDecoder>  decoder_;
+    size_t       size_;
+    std::string  md5_;
+
+    static std::string ComputeMd5(OrthancPluginContext* context,
+                                  const void* dicom,
+                                  size_t size);
+
+  public:
+    GdcmDecoderCache() : size_(0)
+    {
+    }
+
+    OrthancImageWrapper* Decode(OrthancPluginContext* context,
+                                const void* dicom,
+                                const uint32_t size,
+                                uint32_t frameIndex);
+  };
+}