portapack-mayhem/firmware/application/tone_key.hpp
2024-02-10 16:56:50 +01:00

53 lines
1.7 KiB
C++

/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek
* Copyright (C) 2023 Mark Thompson
*
* This file is part of PortaPack.
*
* 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, 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __TONE_KEY_H_
#define __TONE_KEY_H_
#include <cstdint>
#include <string>
#include <vector>
namespace tonekey {
#define TONE_FREQ_TOLERANCE_CENTIHZ (4 * 100)
#define TONE_DISPLAY_TOGGLE_COUNTER 3
#define F2Ix100(x) (int32_t)(x * 100.0 + 0.5) // add 0.5f to round vs truncate during FP->int conversion
using tone_index = int32_t;
using tone_key_t = std::vector<std::pair<std::string, uint32_t>>;
extern const tone_key_t tone_keys;
float tone_key_frequency(tone_index index);
std::string fx100_string(uint32_t f);
std::string tone_key_string(tone_index index);
std::string tone_key_value_string(tone_index index);
std::string tone_key_string_by_value(uint32_t value, size_t max_length);
tone_index tone_key_index_by_value(uint32_t value);
} // namespace tonekey
#endif /*__TONE_KEY_H_*/