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https://github.com/portapack-mayhem/mayhem-firmware.git
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51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
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/*
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* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
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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 __PHASE_ACCUMULATOR_HPP__
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#define __PHASE_ACCUMULATOR_HPP__
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#include <cstdint>
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class PhaseAccumulator {
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public:
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constexpr PhaseAccumulator(
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const uint32_t phase_inc
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) : phase_inc { phase_inc }
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{
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}
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bool operator()() {
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const auto last_phase = phase;
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phase += phase_inc;
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return (phase < last_phase);
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}
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void set_inc(const uint32_t new_phase_inc) {
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phase_inc = new_phase_inc;
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}
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private:
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uint32_t phase { 0 };
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uint32_t phase_inc;
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};
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#endif/*__PHASE_ACCUMULATOR_HPP__*/
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