mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-25 23:39:37 -05:00
51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
|
/*
|
||
|
|
* 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__*/
|