Created by the British Broadcasting Corporation.
00001 /* ***** BEGIN LICENSE BLOCK ***** 00002 * 00003 * $Id: upconvert.h,v 1.6 2004/07/12 10:59:23 asuraparaju Exp $ $Name: Dirac_0_4_3 $ 00004 * 00005 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 00006 * 00007 * The contents of this file are subject to the Mozilla Public License 00008 * Version 1.1 (the "License"); you may not use this file except in compliance 00009 * with the License. You may obtain a copy of the License at 00010 * http://www.mozilla.org/MPL/ 00011 * 00012 * Software distributed under the License is distributed on an "AS IS" basis, 00013 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for 00014 * the specific language governing rights and limitations under the License. 00015 * 00016 * The Original Code is BBC Research and Development code. 00017 * 00018 * The Initial Developer of the Original Code is the British Broadcasting 00019 * Corporation. 00020 * Portions created by the Initial Developer are Copyright (C) 2004. 00021 * All Rights Reserved. 00022 * 00023 * Contributor(s): Richard Felton (Original Author), Thomas Davies 00024 * 00025 * Alternatively, the contents of this file may be used under the terms of 00026 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser 00027 * Public License Version 2.1 (the "LGPL"), in which case the provisions of 00028 * the GPL or the LGPL are applicable instead of those above. If you wish to 00029 * allow use of your version of this file only under the terms of the either 00030 * the GPL or LGPL and not to allow others to use your version of this file 00031 * under the MPL, indicate your decision by deleting the provisions above 00032 * and replace them with the notice and other provisions required by the GPL 00033 * or LGPL. If you do not delete the provisions above, a recipient may use 00034 * your version of this file under the terms of any one of the MPL, the GPL 00035 * or the LGPL. 00036 * ***** END LICENSE BLOCK ***** */ 00037 00038 #ifndef _UPCONVERT_H_ 00039 #define _UPCONVERT_H_ 00040 00041 #include "libdirac_common/common.h" 00042 00043 //Optimised upconversion class - no array resizes. 00044 //Uses integer math - no floats! 00045 // 00046 00048 00051 class UpConverter{ 00052 00053 public: 00054 00056 UpConverter(){} 00058 ~UpConverter(){}; 00059 00061 00066 void DoUpConverter(const PicArray &OldImage, PicArray &NewImage); 00067 00068 private: 00069 UpConverter(const UpConverter& cpy);//private body-less copy constructor: class should not be copied 00070 UpConverter& operator=(const UpConverter& rhs);//private body-less assignment: class should not be assigned 00071 00072 //Applies the filter to a row number 00073 //LinePos and its neighbour. 00074 void rowLoop(PicArray &NewImage, int &LinePos); 00075 00076 //Variable to keep the loops in check 00077 int xOld, yOld; 00078 int xNew, yNew; 00079 00080 //Define first set of filter parameters 00081 static const int Stage_I_Size = 6; 00082 static const int StageI_I = 167; 00083 static const int StageI_II = -56; 00084 static const int StageI_III = 25; 00085 static const int StageI_IV = -11; 00086 static const int StageI_V = 4; 00087 static const int StageI_VI = -1; 00088 static const int Stage_I_Shift = 8; 00089 }; 00090 00091 #endif
© 2004 British Broadcasting Corporation.
Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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