CLAM-Development
1.1
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00001 /* 00002 * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG) 00003 * UNIVERSITAT POMPEU FABRA 00004 * 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; either version 2 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00019 * 00020 */ 00021 00022 #include "AutoPanner.hxx" 00023 #include "OSDefines.hxx" 00024 #include "CLAM_Math.hxx" 00025 #include "ProcessingFactory.hxx" 00026 00027 00028 00029 namespace CLAM 00030 { 00031 00032 namespace Hidden 00033 { 00034 static const char * metadata[] = { 00035 "key", "AutoPanner", 00036 "category", "Controls", 00037 "description", "AutoPanner", 00038 0 00039 }; 00040 static FactoryRegistrator<ProcessingFactory, AutoPanner> reg = metadata; 00041 } 00042 00043 void AutoPannerConfig::DefaultInit(void) 00044 { 00045 AddAll(); 00046 UpdateData(); 00047 SetFrequency(440.0); 00048 SetPhase(0.0); 00049 SetSamplingRate( 44100 ); 00050 SetFrameSize( 512 ); 00051 } 00052 00053 AutoPanner::AutoPanner() 00054 : mLeft("Left Control", this ), 00055 mRight("Right Control", this ) 00056 { 00057 AutoPannerConfig cfg; 00058 00059 Configure(cfg); 00060 } 00061 00062 AutoPanner::AutoPanner( const AutoPannerConfig & cfg) 00063 : mLeft("Left Control", this ), 00064 mRight("Right Control", this ) 00065 { 00066 00067 Configure(cfg); 00068 } 00069 00070 00071 bool AutoPanner::Do() 00072 { 00073 if( !AbleToExecute() ) return true; 00074 00075 CLAM::TData newValue = sin(mPhase); 00076 mPhase += mDeltaPhase; 00077 if (mPhase > (2*M_PI)) 00078 { 00079 mPhase = fmod(mPhase,TData(2*M_PI)); 00080 } 00081 00082 CLAM::TData firstValue = fabs(newValue); 00083 CLAM::TData secondValue = 1 - fabs(newValue); 00084 00085 mLeft.SendControl(firstValue); 00086 mRight.SendControl(secondValue); 00087 return true; 00088 } 00089 00090 bool AutoPanner::ConcreteConfigure(const ProcessingConfig& c) 00091 { 00092 CopyAsConcreteConfig(mConfig, c); 00093 00094 mFreq = mConfig.GetFrequency(); 00095 mSamplingRate = mConfig.GetSamplingRate(); 00096 mPhase = mConfig.GetPhase(); 00097 mFrameSize = mConfig.GetFrameSize(); 00098 mDeltaPhase = ((2* TData(M_PI) *mFreq)/mSamplingRate)* mFrameSize; 00099 00100 return true; 00101 } 00102 00103 } // namespace CLAM 00104