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diff --git a/source/blender/freestyle/intern/stroke/ContextFunctions.h b/source/blender/freestyle/intern/stroke/ContextFunctions.h
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+//
+//  Filename         : AdvancedFunctions0D.h
+//  Author(s)        : Stephane Grabli
+//  Purpose          : Functions related to context queries
+//  Date of creation : 20/12/2003
+//
+///////////////////////////////////////////////////////////////////////////////
+
+
+//
+//  Copyright (C) : Please refer to the COPYRIGHT file distributed 
+//   with this source distribution. 
+//
+//  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 2
+//  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, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef  CONTEXT_FUNCTIONS_HPP
+# define CONTEXT_FUNCTIONS_HPP
+
+# include "Canvas.h"
+# include "../image/Image.h"
+# include "../image/GaussianFilter.h"
+
+/*! \file ContextFunctions.h
+ *  Interface to access the context related
+ *  information.
+ */
+//
+// Context Functions definitions
+//
+///////////////////////////////////////////////////////////
+/*! namespace containing all the Context related functions */
+namespace ContextFunctions {
+
+  // GetTimeStamp
+  LIB_STROKE_EXPORT
+  /*! Returns the system time stamp */
+  unsigned GetTimeStampCF();
+
+  // GetCanvasWidth
+  /*! Returns the canvas width */
+  LIB_STROKE_EXPORT
+  unsigned GetCanvasWidthCF();
+ 
+  // GetCanvasHeight
+  /*! Returns the canvas width */
+  LIB_STROKE_EXPORT 
+  unsigned GetCanvasHeightCF();
+  
+  // Load map
+  /*! Loads an image map for further reading */
+  LIB_STROKE_EXPORT 
+  void LoadMapCF(const char *iFileName, const char *iMapName, unsigned iNbLevels=4, float iSigma=1.f);
+
+  // ReadMapPixel
+  /*! Reads a pixel in a user-defined map 
+   *  \return the floating value stored for that pixel
+   *  \param iMapName
+   *    The name of the map
+   *  \param level
+   *    The level of the pyramid in which we wish to read the pixel
+   *  \param x
+   *    The x-coordinate of the pixel we wish to read. The origin is
+   *    in the lower-left corner.
+   *  \param y
+   *    The y-coordinate of the pixel we wish to read. The origin is
+   *    in the lower-left corner.
+   */
+  LIB_STROKE_EXPORT 
+  float ReadMapPixelCF(const char *iMapName, int level, unsigned x, unsigned y);
+
+  // ReadCompleteViewMapPixel
+  /*! Reads a pixel in the complete view map
+   *  \return the floating value stored for that pixel
+   *  \param level
+   *    The level of the pyramid in which we wish to read the pixel
+   *  \param x
+   *    The x-coordinate of the pixel we wish to read. The origin is
+   *    in the lower-left corner.
+   *  \param y
+   *    The y-coordinate of the pixel we wish to read. The origin is
+   *    in the lower-left corner.
+   */
+  LIB_STROKE_EXPORT 
+  float ReadCompleteViewMapPixelCF(int level, unsigned x, unsigned y);
+
+  // ReadOrientedViewMapPixel
+  /*! Reads a pixel in one of the oriented view map images
+   *  \return the floating value stored for that pixel
+   *  \param iOrientation
+   *    The number telling which orientation we want to check
+   *  \param level
+   *    The level of the pyramid in which we wish to read the pixel
+   *  \param x
+   *    The x-coordinate of the pixel we wish to read. The origin is
+   *    in the lower-left corner.
+   *  \param y
+   *    The y-coordinate of the pixel we wish to read. The origin is
+   *    in the lower-left corner.
+   */
+  LIB_STROKE_EXPORT 
+  float ReadDirectionalViewMapPixelCF(int iOrientation, int level, unsigned x, unsigned y);
+
+  // DEBUG
+  LIB_STROKE_EXPORT 
+  FEdge * GetSelectedFEdgeCF();
+
+} // end of namespace ContextFunctions
+
+#endif // CONTEXT_FUNCTIONS_HPP
+