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