furnace/src/engine/filter.h

43 lines
1.3 KiB
C
Raw Normal View History

2022-03-20 08:14:00 +00:00
/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 tildearrow and contributors
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
class DivFilterTables {
public:
static float* cubicTable;
static float* sincTable;
static float* sincIntegralTable;
/**
* get a 1024x4 cubic spline table.
* @return the table.
*/
static float* getCubicTable();
/**
* get a 8192x8 one-side sine-windowed sinc table.
* @return the table.
*/
static float* getSincTable();
/**
* get a 8192x8 one-side sine-windowed sinc integral table.
* @return the table.
*/
static float* getSincIntegralTable();
};