upconvert.h
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- /* ***** BEGIN LICENSE BLOCK *****
- *
- * $Id: upconvert.h,v 1.2 2005/01/30 05:11:40 gabest Exp $ $Name: $
- *
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License
- * Version 1.1 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
- * the specific language governing rights and limitations under the License.
- *
- * The Original Code is BBC Research and Development code.
- *
- * The Initial Developer of the Original Code is the British Broadcasting
- * Corporation.
- * Portions created by the Initial Developer are Copyright (C) 2004.
- * All Rights Reserved.
- *
- * Contributor(s): Richard Felton (Original Author), Thomas Davies
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
- * Public License Version 2.1 (the "LGPL"), in which case the provisions of
- * the GPL or the LGPL are applicable instead of those above. If you wish to
- * allow use of your version of this file only under the terms of the either
- * the GPL or LGPL and not to allow others to use your version of this file
- * under the MPL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by the GPL
- * or LGPL. If you do not delete the provisions above, a recipient may use
- * your version of this file under the terms of any one of the MPL, the GPL
- * or the LGPL.
- * ***** END LICENSE BLOCK ***** */
- #ifndef _UPCONVERT_H_
- #define _UPCONVERT_H_
- #include <libdirac_common/common.h>
- namespace dirac
- {
- //Optimised upconversion class - no array resizes.
- //Uses integer math - no floats!
- //
- //! Upconversion class
- /*!
- Class to upconvert data by a factor of 2 in both dimensions
- */
- class UpConverter
- {
- public:
- //! Constructor
- UpConverter(){}
- //! Destructor
- ~UpConverter(){};
- //! Upconvert the picture data
- /*!
- Upconvert the picture data, where the parameters are
- param pic_data is the original data
- param up_data is the upconverted data
- */
- void DoUpConverter(const PicArray& pic_data, PicArray& up_data);
- private:
- //! Private body-less copy constructor: class should not be copied
- UpConverter(const UpConverter& cpy);
- //! Private body-less assignment: class should not be assigned
- UpConverter& operator=(const UpConverter& rhs);
- //! Applies the filter to a row and its successor
- void RowLoop(PicArray& up_data, const int row_num);
- private:
- //Variable to keep the loops in check
- int xOld, yOld;
- int xNew, yNew;
- //Define first set of filter parameters
- static const int Stage_I_Size = 6;
- static const int StageI_I = 167;
- static const int StageI_II = -56;
- static const int StageI_III = 25;
- static const int StageI_IV = -11;
- static const int StageI_V = 4;
- static const int StageI_VI = -1;
- static const int Stage_I_Shift = 8;
- };
- } // namespace dirac
- #endif