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cosinetables.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef COMMON_COSINETABLES_H
00024 #define COMMON_COSINETABLES_H
00025 
00026 namespace Common {
00027 
00028 class CosineTable {
00029 public:
00035     CosineTable(int nPoints);
00036     ~CosineTable();
00037 
00049     const float *getTable() { return _tableEOS; }
00050 
00056     float at(int index) const;
00057 
00062     float atLegacy(int index) const;
00063 
00064 private:
00065     float *_tableEOS;
00066     float *_table;
00067     double _radResolution; // Smallest radian increment
00068     int _refSize; // _nPoints / 4
00069     int _nPoints; // range of operator[]
00070 };
00071 
00072 } // End of namespace Common
00073 
00074 #endif // COMMON_COSINETABLES_H


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