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Downsampler2xF64Sse2.h
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/*****************************************************************************
Downsampler2xF64Sse2.h
Author: Laurent de Soras, 2020
--- 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_Downsampler2xF64Sse2_HEADER_INCLUDED)
#define hiir_Downsampler2xF64Sse2_HEADER_INCLUDED
/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
#include "hiir/def.h"
#include "hiir/StageDataF64Sse2.h"
#include <emmintrin.h>
#include <array>
namespace hiir
{
template <int NC>
class Downsampler2xF64Sse2
{
static_assert ((NC > 0), "Number of coefficient must be positive.");
/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
public:
typedef double DataType;
static const int _nbr_chn = 1;
enum { NBR_COEFS = NC };
Downsampler2xF64Sse2 ();
Downsampler2xF64Sse2 (const Downsampler2xF64Sse2 <NC> &other) = default;
Downsampler2xF64Sse2 (Downsampler2xF64Sse2 <NC> &&other) = default;
Downsampler2xF64Sse2 <NC> &
operator = (const Downsampler2xF64Sse2 <NC> &other) = default;
Downsampler2xF64Sse2 <NC> &
operator = (Downsampler2xF64Sse2 <NC> &&other) = default;
void set_coefs (const double coef_arr []);
hiir_FORCEINLINE double
process_sample (const double in_ptr [2]);
void process_block (double out_ptr [], const double in_ptr [], long nbr_spl);
hiir_FORCEINLINE void
process_sample_split (double &low, double &high, const double in_ptr [2]);
void process_block_split (double out_l_ptr [], double out_h_ptr [], const double in_ptr [], long nbr_spl);
void clear_buffers ();
/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
protected:
/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
private:
static const int _stage_width = 2;
static const int _nbr_stages = (NBR_COEFS + _stage_width - 1) / _stage_width;
// Stage 0 contains only input memory
typedef std::array <StageDataF64Sse2, _nbr_stages + 1> Filter;
Filter _filter; // Should be the first member (thus easier to align)
/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
private:
bool operator == (const Downsampler2xF64Sse2 <NC> &other) const = delete;
bool operator != (const Downsampler2xF64Sse2 <NC> &other) const = delete;
}; // class Downsampler2xF64Sse2
} // namespace hiir
#include "hiir/Downsampler2xF64Sse2.hpp"
#endif // hiir_Downsampler2xF64Sse2_HEADER_INCLUDED
/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/