portapack-mayhem/firmware/common/buffer.hpp
Kyle Reed 37386c29cb
Oversample (#1336)
* WIP Oversample cleanup

* WIP

* WIP

* WIP dynamic interpolation

* WIP cleanup

* Fix math errors

* Add some optional assertions

* Add support for x32 interpolation

* Update proc_replay.cpp

Typo
2023-08-02 21:59:26 +02:00

90 lines
2.3 KiB
C++

/*
* Copyright (C) 2014 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 __BUFFER_H__
#define __BUFFER_H__
#include <cstdint>
#include <cstddef>
/* LPC43xx RTC structure. Avoiding using the ChibiOS-defined structure because
* it pulls in all sorts of dependencies and initialization and other stuff that
* the M0 needs to remain in control of.
*
* But yes, this is a hack, and something better is needed. It's too tangled of
* a knot to tackle at the moment, though...
*/
#if defined(LPC43XX_M4)
struct Timestamp {
uint32_t tv_date{0};
uint32_t tv_time{0};
static Timestamp now();
};
#endif
#if defined(LPC43XX_M0)
#include "lpc43xx_cpp.hpp"
using Timestamp = lpc43xx::rtc::RTC;
#endif
template <typename T>
struct buffer_t {
using Type = T;
T* const p;
const size_t count;
const uint32_t sampling_rate;
const Timestamp timestamp;
constexpr buffer_t()
: p{nullptr},
count{0},
sampling_rate{0},
timestamp{} {
}
constexpr buffer_t(
const buffer_t<T>& other)
: p{other.p},
count{other.count},
sampling_rate{other.sampling_rate},
timestamp{other.timestamp} {
}
constexpr buffer_t(
T* const p,
const size_t count,
const uint32_t sampling_rate = 0,
const Timestamp timestamp = {})
: p{p},
count{count},
sampling_rate{sampling_rate},
timestamp{timestamp} {
}
operator bool() const {
return (p != nullptr);
}
};
#endif /*__BUFFER_H__*/