virtualx-engine/modules/chibi/cp_tables.h
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader!
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

67 lines
2.9 KiB
C++

/*************************************************************************/
/* cp_tables.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef CPTABLES_H
#define CPTABLES_H
#include "cp_config.h"
/**conversion CPTables/functions
*@author Juan Linietsky
*/
/******************************
CPTables.h
--------
CPTables methods for miscelaneous
conversion utilities
********************************/
class CPTables {
public:
enum { OCTAVE=12 };
static uint16_t old_period_table[OCTAVE*2];
static uint16_t log_table[104];
static int32_t linear_period_to_freq_tab[768];
static int32_t get_old_period(uint16_t note,int32_t speed);
static int32_t get_amiga_period(uint16_t note,int32_t fine);
static int32_t get_linear_period(uint16_t note,int32_t fine);
static int32_t get_linear_frequency(int32_t period);
static int32_t get_old_frequency(int32_t period);
static int32_t get_log_period(uint16_t note,int32_t p_c5freq);
CPTables();
~CPTables();
};
#endif