--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/ImageFormats/ImageAccessor.cpp	Tue May 06 12:55:41 2014 +0200
@@ -0,0 +1,122 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2014 Medical Physics Department, CHU 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.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * 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/>.
+ **/
+
+
+#include "ImageAccessor.h"
+
+#include "../OrthancException.h"
+
+#include <stdint.h>
+
+namespace Orthanc
+{
+  void* ImageAccessor::GetBuffer()
+  {
+    if (readOnly_)
+    {
+      throw OrthancException(ErrorCode_ReadOnly);
+    }
+
+    return buffer_;
+  }
+
+
+  const void* ImageAccessor::GetConstRow(unsigned int y) const
+  {
+    if (buffer_ != NULL)
+    {
+      return reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_;
+    }
+    else
+    {
+      return NULL;
+    }
+  }
+
+
+  void* ImageAccessor::GetRow(unsigned int y) 
+  {
+    if (readOnly_)
+    {
+      throw OrthancException(ErrorCode_ReadOnly);
+    }
+
+    if (buffer_ != NULL)
+    {
+      return reinterpret_cast<uint8_t*>(buffer_) + y * pitch_;
+    }
+    else
+    {
+      return NULL;
+    }
+  }
+
+
+  void ImageAccessor::AssignEmpty(PixelFormat format)
+  {
+    readOnly_ = false;
+    format_ = format;
+    width_ = 0;
+    height_ = 0;
+    pitch_ = 0;
+    buffer_ = NULL;
+  }
+
+
+  void ImageAccessor::AssignReadOnly(PixelFormat format,
+                                     unsigned int width,
+                                     unsigned int height,
+                                     unsigned int pitch,
+                                     const void *buffer)
+  {
+    readOnly_ = true;
+    format_ = format;
+    width_ = width;
+    height_ = height;
+    pitch_ = pitch;
+    buffer_ = const_cast<void*>(buffer);
+  }
+
+
+  void ImageAccessor::AssignWritable(PixelFormat format,
+                                     unsigned int width,
+                                     unsigned int height,
+                                     unsigned int pitch,
+                                     void *buffer)
+  {
+    readOnly_ = false;
+    format_ = format;
+    width_ = width;
+    height_ = height;
+    pitch_ = pitch;
+    buffer_ = buffer;
+  }
+}