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Diffstat (limited to 'modules/chibi/cp_tables.h')
| -rw-r--r-- | modules/chibi/cp_tables.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/modules/chibi/cp_tables.h b/modules/chibi/cp_tables.h new file mode 100644 index 0000000000..ac7ee562b7 --- /dev/null +++ b/modules/chibi/cp_tables.h @@ -0,0 +1,67 @@ +/*************************************************************************/ +/* cp_tables.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2016 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 |