--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/ImageFormats/ImageBuffer.cpp	Tue May 06 16:35:21 2014 +0200
@@ -0,0 +1,108 @@
+/**
+ * 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 "ImageBuffer.h"
+
+namespace Orthanc
+{
+  void ImageBuffer::Allocate()
+  {
+    if (changed_)
+    {
+      pitch_ = GetBytesPerPixel() * width_;
+
+      data_.resize(pitch_ * height_);
+      if (data_.size() > 0)
+      {
+        buffer_ = &data_[0];
+      }
+      else
+      {
+        buffer_ = 0;
+      }
+
+      changed_ = false;
+    }
+  }
+
+
+  ImageBuffer::ImageBuffer() : changed_(false)
+  {
+    changed_ = false;
+    format_ = PixelFormat_Grayscale8;
+    width_ = 0;
+    height_ = 0;
+    pitch_ = 0;
+    buffer_ = NULL;
+  }
+
+
+  void ImageBuffer::SetFormat(PixelFormat format)
+  {
+    changed_ = true;
+    format_ = format;
+  }
+
+
+  void ImageBuffer::SetWidth(unsigned int width)
+  {
+    changed_ = true;
+    width_ = width;     
+  }
+
+
+  void ImageBuffer::SetHeight(unsigned int height)
+  {
+    changed_ = true;
+    height_ = height;     
+  }
+
+
+  ImageAccessor ImageBuffer::GetAccessor()
+  {
+    Allocate();
+
+    ImageAccessor accessor;
+    accessor.AssignWritable(format_, width_, height_, pitch_, buffer_);
+    return accessor;
+  }
+
+
+  ImageAccessor ImageBuffer::GetConstAccessor()
+  {
+    Allocate();
+
+    ImageAccessor accessor;
+    accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_);
+    return accessor;
+  }
+}