CLAM-Development  1.4.0
AutoPanner.cxx
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1 /*
2  * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
3  * UNIVERSITAT POMPEU FABRA
4  *
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  */
21 
22 #include "AutoPanner.hxx"
23 #include "OSDefines.hxx"
24 #include "CLAM_Math.hxx"
25 #include "ProcessingFactory.hxx"
26 
27 
28 
29 namespace CLAM
30 {
31 
32 namespace Hidden
33 {
34  static const char * metadata[] = {
35  "key", "AutoPanner",
36  "category", "Controls",
37  "description", "AutoPanner",
38  0
39  };
40  static FactoryRegistrator<ProcessingFactory, AutoPanner> reg = metadata;
41 }
42 
44 {
45  AddAll();
46  UpdateData();
47  SetFrequency(440.0);
48  SetPhase(0.0);
49  SetSamplingRate( 44100 );
50  SetFrameSize( 512 );
51 }
52 
54  : mLeft("Left Control", this ),
55  mRight("Right Control", this )
56 {
57  AutoPannerConfig cfg;
58 
59  Configure(cfg);
60 }
61 
63  : mLeft("Left Control", this ),
64  mRight("Right Control", this )
65 {
66 
67  Configure(cfg);
68 }
69 
70 
72 {
73  if( !AbleToExecute() ) return true;
74 
75  CLAM::TData newValue = sin(mPhase);
76  mPhase += mDeltaPhase;
77  if (mPhase > (2*M_PI))
78  {
79  mPhase = fmod(mPhase,TData(2*M_PI));
80  }
81 
82  CLAM::TData firstValue = fabs(newValue);
83  CLAM::TData secondValue = 1 - fabs(newValue);
84 
85  mLeft.SendControl(firstValue);
86  mRight.SendControl(secondValue);
87  return true;
88 }
89 
91 {
92  CopyAsConcreteConfig(mConfig, c);
93 
94  mFreq = mConfig.GetFrequency();
95  mSamplingRate = mConfig.GetSamplingRate();
96  mPhase = mConfig.GetPhase();
97  mFrameSize = mConfig.GetFrameSize();
98  mDeltaPhase = ((2* TData(M_PI) *mFreq)/mSamplingRate)* mFrameSize;
99 
100  return true;
101 }
102 
103 } // namespace CLAM
104