1 /*---------------------------------------------------------------------------*
2   Project:  NintendoWare
3   File:     snd_BiquadFilterPresets.h
4 
5   Copyright (C)2009-2011 Nintendo/HAL Laboratory, Inc.  All rights reserved.
6 
7   These coded instructions, statements, and computer programs contain proprietary
8   information of Nintendo and/or its licensed developers and are protected by
9   national and international copyright laws. They may not be disclosed to third
10   parties or copied or duplicated in any form, in whole or in part, without the
11   prior written consent of Nintendo.
12 
13   The content herein is highly confidential and should be handled accordingly.
14 
15   $Revision: $
16  *---------------------------------------------------------------------------*/
17 
18 #ifndef NW_SND_BIQUAD_FILTER_PRESETS_H_
19 #define NW_SND_BIQUAD_FILTER_PRESETS_H_
20 
21 #include <nw/snd/snd_BiquadFilterCallback.h>
22 
23 namespace nw {
24 namespace snd {
25 namespace internal {
26 
27 /* ------------------------------------------------------------------------
28         BiquadFilterLpf - ローパスフィルタ
29         （1/16オクターブ間隔、チェビシェフ近似）
30    ------------------------------------------------------------------------ */
31 class BiquadFilterLpf : public BiquadFilterCallback
32 {
33 public:
BiquadFilterLpf()34     BiquadFilterLpf() {}
35     virtual void GetCoefficients( int type, f32 value, Coefficients* coef ) const;
36 
37 private:
38     static const int COEFFICIENTS_TABLE_SIZE = 112;
39     static const Coefficients COEFFICIENTS_TABLE[ COEFFICIENTS_TABLE_SIZE ];
40 };
41 
42 /* ------------------------------------------------------------------------
43         BiquadFilterHpf - ハイパスフィルタ
44         （1/16オクターブ間隔、チェビシェフ近似）
45    ------------------------------------------------------------------------ */
46 class BiquadFilterHpf : public BiquadFilterCallback
47 {
48 public:
BiquadFilterHpf()49     BiquadFilterHpf() {}
50     virtual void GetCoefficients( int type, f32 value, Coefficients* coef ) const;
51 
52 private:
53     static const int COEFFICIENTS_TABLE_SIZE = 97;
54     static const Coefficients COEFFICIENTS_TABLE[ COEFFICIENTS_TABLE_SIZE ];
55 };
56 
57 /* ------------------------------------------------------------------------
58         BiquadFilterBpf512 - バンドパスフィルタ
59         （中心周波数 512Hz、チェビシェフ近似）
60    ------------------------------------------------------------------------ */
61 class BiquadFilterBpf512 : public BiquadFilterCallback
62 {
63 public:
BiquadFilterBpf512()64     BiquadFilterBpf512() {}
65     virtual void GetCoefficients( int type, f32 value, Coefficients* coef ) const;
66 
67 private:
68     static const int COEFFICIENTS_TABLE_SIZE = 122;
69     static const Coefficients COEFFICIENTS_TABLE[ COEFFICIENTS_TABLE_SIZE ];
70 };
71 
72 /* ------------------------------------------------------------------------
73         BiquadFilterBpf1024 - バンドパスフィルタ
74         （中心周波数 1024Hz、チェビシェフ近似）
75    ------------------------------------------------------------------------ */
76 class BiquadFilterBpf1024 : public BiquadFilterCallback
77 {
78 public:
BiquadFilterBpf1024()79     BiquadFilterBpf1024() {}
80     virtual void GetCoefficients( int type, f32 value, Coefficients* coef ) const;
81 
82 private:
83     static const int COEFFICIENTS_TABLE_SIZE = 93;
84     static const Coefficients COEFFICIENTS_TABLE[ COEFFICIENTS_TABLE_SIZE ];
85 };
86 
87 /* ------------------------------------------------------------------------
88         BiquadFilterBpf2048 - バンドパスフィルタ
89         （中心周波数 2048Hz、チェビシェフ近似）
90    ------------------------------------------------------------------------ */
91 class BiquadFilterBpf2048 : public BiquadFilterCallback
92 {
93 public:
BiquadFilterBpf2048()94     BiquadFilterBpf2048() {}
95     virtual void GetCoefficients( int type, f32 value, Coefficients* coef ) const;
96 
97 private:
98     static const int COEFFICIENTS_TABLE_SIZE = 93;
99     static const Coefficients COEFFICIENTS_TABLE[ COEFFICIENTS_TABLE_SIZE ];
100 };
101 
102 } // namespace nw::snd::internal
103 } // namespace nw::snd
104 } // namespace nw
105 
106 
107 #endif /* NW_SND_BIQUAD_FILTER_PRESETS_H_ */
108 
109