SimpleOscillator.hxx

Go to the documentation of this file.
00001 /*
00002  * Copyright (c) 2001-2004 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 #ifndef __SimpleOscillator_hxx__
00023 #define __SimpleOscillator_hxx__
00024 
00025 #include "Processing.hxx"
00026 #include "ProcessingData.hxx"
00027 #include "OSDefines.hxx"
00028 #include "Audio.hxx"
00029 #include "AudioOutPort.hxx"
00030 #include "InControl.hxx"
00031 #include "Enum.hxx"
00032 #include <string>
00033 
00034 namespace CLAM
00035 {
00036 
00037 class EOscillatorControls : public Enum
00038 {
00039 public:
00040 
00041         EOscillatorControls() : Enum(ValueTable(), pitch) { } 
00042         EOscillatorControls(tValue v) : Enum(ValueTable(), v) { } 
00043         EOscillatorControls(std::string s) : Enum(ValueTable(), s) { }
00044         ~EOscillatorControls() { };
00045 
00046         Component * Species() const 
00047         { 
00048                 return new EOscillatorControls;
00049         }
00050         typedef enum 
00051         {
00052                 pitch=0,
00053                 amplitude,
00054                 modidx,
00055                 phase
00056         } tEnum;
00057         static tEnumValue * ValueTable()
00058         {
00059                 static tEnumValue sEnumValues[] =
00060                         {
00061                                 { pitch, "pitch" },
00062                                 { amplitude, "amplitude" },
00063                                 { modidx, "modidx" },
00064                                 { phase, "phase" },
00065                                 { 0, NULL }
00066                         };
00067                 return sEnumValues;
00068         }
00069 };
00070 
00071 class SimpleOscillatorConfig: public ProcessingConfig
00072 {
00073 public:
00074         DYNAMIC_TYPE_USING_INTERFACE (SimpleOscillatorConfig, 4, ProcessingConfig);
00075         DYN_ATTRIBUTE (0, public, TData, Frequency);
00076         DYN_ATTRIBUTE (1, public, TData, Amplitude);
00077         DYN_ATTRIBUTE (2, public, TData, Phase);
00078         DYN_ATTRIBUTE (3, public, TData, SamplingRate);
00079         
00080 protected:
00081         void DefaultInit(void);
00082 };
00083         
00084 class SimpleOscillator : public Processing
00085 {
00086 protected:
00087         typedef SimpleOscillatorConfig Config;
00088         AudioOutPort mOutput;
00089         SimpleOscillatorConfig mConfig;
00090         TData mAmp;
00091         TData mPhase;
00092         TData mDeltaPhase;
00093         TData mSamplingRate;
00094 
00095         bool           mFreqUpdated;
00096         bool           mAmpUpdated;
00097         FloatInControl mFreqCtl;
00098         FloatInControl mAmpCtl;
00099         //xamat: kludge to convert this into an LFO, eventually separate into a different class
00100         FloatInControl mSamplesBetweenCallsCtl;
00101         
00102 protected:      
00103 
00104         inline void ApplyFreqAndAmpControls()
00105         {
00106                 if ( mFreqUpdated )
00107                 {
00108                         mDeltaPhase = TData(2. * PI * mFreqCtl.GetLastValue() / mSamplingRate);
00109                         mFreqUpdated = false;
00110                 }
00111                 if ( mAmpUpdated )
00112                 {
00113                         mAmp = mAmpCtl.GetLastValue();
00114                         mAmpUpdated = false;
00115                 }
00116         }
00117 
00118         void UpdateFreq( TControlData );
00119         void UpdateAmp( TControlData );
00120 
00121 public:
00122 
00123         SimpleOscillator(const SimpleOscillatorConfig& c = Config() );
00124 
00125         virtual ~SimpleOscillator();
00126 
00127         const char * GetClassName() const {return "SimpleOscillator";}
00128         
00129         virtual const ProcessingConfig &GetConfig() const { return mConfig;}
00130         
00131         virtual bool ConcreteConfigure(const ProcessingConfig& c);
00132         
00133         virtual bool Do(void); 
00134 
00135         // "Generative Do"
00136         bool Do(Audio& out);
00138         bool Do(TData& out);
00139 };
00140 
00141 }
00142 
00143 #endif
00144 
00145 
Generated by  doxygen 1.6.3