-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathDownsampler2xFpuTpl.h
126 lines (66 loc) · 3.11 KB
/
Downsampler2xFpuTpl.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
/*****************************************************************************
Downsampler2xFpuTpl.h
Author: Laurent de Soras, 2005
Downsamples by a factor 2 the input signal, using FPU.
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://sam.zoy.org/wtfpl/COPYING for more details.
*Tab=3***********************************************************************/
#if ! defined (hiir_Downsampler2xFpuTpl_HEADER_INCLUDED)
#define hiir_Downsampler2xFpuTpl_HEADER_INCLUDED
#if defined (_MSC_VER)
#pragma once
#pragma warning (4 : 4250) // "Inherits via dominance."
#endif
/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
#include "hiir/def.h"
#include <array>
namespace hiir
{
template <int NC, typename DT>
class Downsampler2xFpuTpl
{
static_assert ((NC > 0), "Number of coefficient must be positive.");
/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
public:
typedef DT DataType;
static const int _nbr_chn = 1;
enum { NBR_COEFS = NC };
Downsampler2xFpuTpl ();
Downsampler2xFpuTpl (const Downsampler2xFpuTpl <NC, DT> &other) = default;
Downsampler2xFpuTpl (Downsampler2xFpuTpl <NC, DT> &&other) = default;
~Downsampler2xFpuTpl () = default;
Downsampler2xFpuTpl <NC, DT> &
operator = (const Downsampler2xFpuTpl <NC, DT> &other) = default;
Downsampler2xFpuTpl <NC, DT> &
operator = (Downsampler2xFpuTpl <NC, DT> &&other) = default;
void set_coefs (const double coef_arr []);
hiir_FORCEINLINE DataType
process_sample (const DataType in_ptr [2]);
void process_block (DataType out_ptr [], const DataType in_ptr [], long nbr_spl);
hiir_FORCEINLINE void
process_sample_split (DataType &low, DataType &high, const DataType in_ptr [2]);
void process_block_split (DataType out_l_ptr [], DataType out_h_ptr [], const DataType in_ptr [], long nbr_spl);
void clear_buffers ();
/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
protected:
/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
private:
typedef std::array <DataType, NBR_COEFS> HyperGluar;
HyperGluar _coef;
HyperGluar _x;
HyperGluar _y;
/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
private:
bool operator == (const Downsampler2xFpuTpl <NC, DT> &other) = delete;
bool operator != (const Downsampler2xFpuTpl <NC, DT> &other) = delete;
}; // class Downsampler2xFpuTpl
} // namespace hiir
#include "hiir/Downsampler2xFpuTpl.hpp"
#endif // hiir_Downsampler2xFpuTpl_HEADER_INCLUDED
/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/