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https://github.com/portapack-mayhem/mayhem-firmware.git
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900086c1c9
* Fixed tone key freq truncation in float->int conversion * Round integer division when displaying tone key freq
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2017 Furrtek
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __TONE_KEY_H_
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#define __TONE_KEY_H_
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#include <cstdint>
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#include <string>
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#include <vector>
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namespace tonekey {
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#define TONE_FREQ_TOLERANCE_CENTIHZ (4 * 100)
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#define TONE_DISPLAY_TOGGLE_COUNTER 3
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#define F2Ix100(x) (int32_t)(x * 100.0 + 0.5) // add 0.5f to round vs truncate during FP->int conversion
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using tone_index = int32_t;
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using tone_key_t = std::vector<std::pair<std::string, uint32_t>>;
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extern const tone_key_t tone_keys;
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float tone_key_frequency(tone_index index);
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std::string fx100_string(uint32_t f);
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std::string tone_key_string(tone_index index);
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std::string tone_key_value_string(tone_index index);
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std::string tone_key_string_by_value(uint32_t value, size_t max_length);
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tone_index tone_key_index_by_value(uint32_t value);
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} // namespace tonekey
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#endif /*__TONE_KEY_H_*/
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