Syntopia Project

00001 //
00002 //  SYNTOPIA. See http://Syntopia.sourceforge.net for details and documentation.        
00003 //
00004 //      Author of this file: Mikael Hvidtfeldt Christensen (mikaelc@users.sourceforge.net)
00005 //
00006 
00007 
00008 #include "waveshaper.h"
00009 
00010 /* ---- Waveshaper -------------*/
00011 
00012 
00013 namespace SynthCore {
00014 
00015 WaveShaper::WaveShaper(SynthVoice * S1) {
00016         hostVoice = S1;
00017 
00018         Output1 = new Output(this);
00019         Input1 = new Input(this);
00020 
00021         MyStep = 0;
00022         setAmount(0.5f);
00023 }
00024 
00025 Module * WaveShaper::newInstance(SynthVoice * S1) { 
00026         return new WaveShaper(S1); 
00027 }
00028 
00029 Module * WaveShaper::sharedClone() {
00030         return new WaveShaper(hostVoice);
00031 }
00032 
00033 
00034 void WaveShaper::update() {
00035         // Example WaveShaper
00036         temp = Input1->read();
00037         
00038         if (temp < 0.0f) {temp2 = -temp;} else {temp2 =temp;};
00039         
00040         Output1->write(  temp*(temp2 + k)/(temp*temp + (k-1.0f)*temp2 + 1.0f)   );
00041 }
00042 
00043 void WaveShaper::setAmount(float amount)
00044 {                 
00045     k = amount*15.0f;
00046 }
00047 
00048 
00049 std::string WaveShaper::getXML(int indent ) { 
00050 
00051         std::string S = Utils::space(indent) + "<Module ID=\""+Utils::intToString((int)this)+"\" >"+ Utils::newline();
00052         S += Utils::space(indent+2) + "<TypeID>" + typeid(*this).name() + "</TypeID>" + Utils::newline();
00053         
00054         S += saveParameter("amount",k, indent+2);
00055         
00056         S += Output1->getXML("Output1", indent+2);
00057         S += Input1->getXML("Input1", indent+2);
00058         
00059         S += saveID(indent+2);
00060 
00061         S += Utils::space(indent) + "</Module>" + Utils::newline();
00062         return S;               
00063 }
00064 
00065 
00066 
00067 void WaveShaper::loadXML(XMLNode * n, bool firstPass) {
00068           cout << "Parsing Waveshaper XML" << endl;
00069         
00070           string TypeID = n->getTagText("TypeID") ;
00071       if (typeid(*this).name() != TypeID) {
00072                   throw parseError("Trying to put "+TypeID+" into "+typeid(*this).name());
00073           }
00074 
00075           
00076           if (firstPass) {  
00077                   loadParameter("amount",k, n);
00078                   Output1->loadXML("Output1", n);                 
00079           } else {
00080                 Input1->loadXML("Input1", n);   
00081           }
00082 
00083 };
00084 
00085 
00086 }; // end of namespace: SynthCore
waveshaper.cpp
