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PhaseHalfPiF64Sse2.h
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PhaseHalfPiF64Sse2.h
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/*****************************************************************************
PhaseHalfPiF64Sse2.h
Author: Laurent de Soras, 2020
From the input signal, generates two signals with a pi/2 phase shift, using
SSE2 instruction set.
This object must be aligned on a 16-byte boundary!
Template parameters:
- NC: number of coefficients, > 0
--- Legal stuff ---
This program is free software. It comes without any warranty, to
the extent permitted by applicable law. You can redistribute it
and/or modify it under the terms of the Do What The Fuck You Want
To Public License, Version 2, as published by Sam Hocevar. See
http://www.wtfpl.net/ for more details.
*Tab=3***********************************************************************/
#pragma once
#if ! defined (hiir_PhaseHalfPiF64Sse2_HEADER_INCLUDED)
#define hiir_PhaseHalfPiF64Sse2_HEADER_INCLUDED
/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
#include "hiir/def.h"
#include "hiir/StageDataF64Sse2.h"
#include <emmintrin.h>
#include <array>
namespace hiir
{
template <int NC>
class PhaseHalfPiF64Sse2
{
static_assert ((NC > 0), "Number of coefficient must be positive.");
/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
public:
typedef double DataType;
static constexpr int _nbr_chn = 1;
static constexpr int NBR_COEFS = NC;
static constexpr double _delay = 0;
PhaseHalfPiF64Sse2 () noexcept;
PhaseHalfPiF64Sse2 (const PhaseHalfPiF64Sse2 <NC> &other) = default;
PhaseHalfPiF64Sse2 (PhaseHalfPiF64Sse2 <NC> &&other) = default;
PhaseHalfPiF64Sse2 <NC> &
operator = (const PhaseHalfPiF64Sse2 <NC> &other) = default;
PhaseHalfPiF64Sse2 <NC> &
operator = (PhaseHalfPiF64Sse2 <NC> &&other) = default;
void set_coefs (const double coef_arr []) noexcept;
hiir_FORCEINLINE void
process_sample (double &out_0, double &out_1, double input) noexcept;
void process_block (double out_0_ptr [], double out_1_ptr [], const double in_ptr [], long nbr_spl) noexcept;
void clear_buffers () noexcept;
/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
protected:
/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
private:
static constexpr int _stage_width = 2;
static constexpr int _nbr_stages =
(NBR_COEFS + _stage_width - 1) / _stage_width;
static constexpr int _nbr_phases = 2;
// Stage 0 contains only input memory
typedef std::array <StageDataF64Sse2, _nbr_stages + 1> Filter;
typedef std::array <Filter, _nbr_phases> FilterBiPhase;
// Should be the first member (thus easier to align)
FilterBiPhase _bifilter;
DataType _prev;
int _phase; // 0 or 1
/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
private:
bool operator == (const PhaseHalfPiF64Sse2 <NC> &other) const = delete;
bool operator != (const PhaseHalfPiF64Sse2 <NC> &other) const = delete;
}; // class PhaseHalfPiF64Sse2
} // namespace hiir
#include "hiir/PhaseHalfPiF64Sse2.hpp"
#endif // hiir_PhaseHalfPiF64Sse2_HEADER_INCLUDED
/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/