Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2010 George Tzanetakis <gtzan@cs.uvic.ca> 00003 ** 00004 ** This program is free software; you can redistribute it and/or modify 00005 ** it under the terms of the GNU General Public License as published by 00006 ** the Free Software Foundation; either version 2 of the License, or 00007 ** (at your option) any later version. 00008 ** 00009 ** This program is distributed in the hope that it will be useful, 00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 ** GNU General Public License for more details. 00013 ** 00014 ** You should have received a copy of the GNU General Public License 00015 ** along with this program; if not, write to the Free Software 00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 */ 00018 00019 #ifndef MARSYAS_DPWOSC_H 00020 #define MARSYAS_DPWOSC_H 00021 00022 #include <marsyas/system/MarSystem.h> 00023 00024 namespace Marsyas 00025 { 00038 class DPWOsc: public MarSystem 00039 { 00040 private: 00041 00042 class Differentiator 00043 { 00044 private: 00045 mrs_real x1; 00046 public: 00047 00048 mrs_real operator()(mrs_real x) 00049 { 00050 mrs_real y = x - x1; 00051 x1 = x; 00052 return y; 00053 } 00054 }; 00055 00056 // Add specific controls needed by this MarSystem. 00057 void addControls(); 00058 00059 // Reads changed controls and sets up variables if necessary. 00060 void myUpdate(MarControlPtr sender); 00061 00062 mrs_real currentValue_; 00063 mrs_real incr_; 00064 mrs_real cyclicRate_; 00065 mrs_bool cyclicIn_; 00066 mrs_real israte_; 00067 mrs_real frequency_; 00068 mrs_natural type_; 00069 00070 mrs_real c_; // Amplitude scalar 00071 00072 Differentiator df; 00073 00074 public: 00075 // DPWOsc constructor. 00076 DPWOsc(std::string name); 00077 00078 // DPWOsc copy constructor. 00079 DPWOsc(const DPWOsc& a); 00080 00081 // DPWOsc destructor. 00082 ~DPWOsc(); 00083 00084 // Implementation of the MarSystem::clone() method. 00085 MarSystem* clone() const; 00086 00087 // Implementation of the MarSystem::myProcess method. 00088 void myProcess(realvec& in, realvec& out); 00089 }; 00090 00091 } 00092 //namespace Marsyas 00093 00094 #endif 00095 //MARSYAS_DPWOSC_H 00096