Merged branch for compiled notes

The synthesizer is now able to load and use compiled, optimized shared
objects of programs. There's also a note-compiler which creates the code
for such objects.

TODO:
  - let the note-compiler automatically compile OR rename it to
    code-emitter

1 files changed, 779 insertions, 0 deletions

diff --git a/note_compiler/main.cpp b/note_compiler/main.cpp
new file mode 100644
index 0000000..47ed685
--- /dev/null
+++ b/note_compiler/main.cpp
@@ -0,0 +1,779 @@
+//TODO: auf unbenutzte envelopes achten!
+
+#include <iostream>
+#include <fstream>
+
+#include "parser.h"
+#include "programs.h"
+#include "util.h"
+#include "../synth/fixed.h"
+
+using namespace std;
+
+ostream &out=cout;
+ostream &comment=cout;
+program_t prog;
+
+void write_empty_line()
+{
+	out << "\n";
+}
+
+void include_file(string file)
+{
+	file="templates/"+file;
+	
+	ifstream in;
+	in.open(file.c_str());
+	if (!in.good())
+		throw string ("include: could not open '"+file+"'");
+	
+	char tempbuf[2000];
+	while (!in.eof())
+	{
+		in.getline(tempbuf, sizeof(tempbuf));
+		out << tempbuf << "\n";
+	}
+}
+
+void write_env_decs()
+{
+	for (int i=0;i<prog.n_osc;i++)
+		if (prog.env[i].enabled)
+			out << "\t\tEnvelope *env"<<i<<";\n";
+		else
+		{
+			comment << "\t\t//envelope"<<i<<" is unused\n";
+			if ( (prog.osc[i].ksl!=0) || (prog.osc[i].ksl_const==false) )
+				out << "\t\tfixed_t kslval"<<i<<";\n";
+		}
+}
+void write_oscval_decs()
+{
+	out << "\t\tfixed_t *oscval;\n"
+				 "\t\tfixed_t *old_oscval;\n";
+}
+void write_osc_decs()
+{
+	for (int i=0;i<prog.n_osc;i++)
+		out << "\t\toscillator_t osc"<<i<<";\n";
+}
+void write_osc_decs2()
+{
+	for (int i=0;i<prog.n_osc;i++)
+		out << "\t\t\toscillator_t osc"<<i<<";\n";
+}
+
+void write_sync_decs()
+{
+	if ((prog.sync_factor!=0) || (prog.sync_factor_const==false))
+		out << "\t\tfixed_t sync_factor;\n"
+		       "\t\tfixed_t sync_phase;\n";
+	else
+		comment << "\t\t//sync is disabled\n";
+}
+
+void write_filter_decs()
+{
+	if ((prog.filter.enabled==true) || (prog.filter.enabled_const==false))
+	{
+		out << "\t\tLowPassFilter filter;\n"
+		       "\t\tfilter_params_t filter_params;\n"
+		       "\t\tint filter_update_counter;\n";
+		if (prog.filter.env_settings.enabled==true)
+			out << "\t\tEnvelope *filter_envelope;\n";
+		else
+			comment << "\t\t//filter envelope is disabled\n";
+
+	}
+	else
+		comment << "\t\t//filter is disabled\n";
+}
+
+void write_pfactor_decs()
+{
+	out << "\t\tpfactor_value_t pfactor;\n"
+				 "\t\tstruct\n"
+				 "\t\t{\n";
+	write_osc_decs2();
+	if ((prog.filter.enabled==true) || (prog.filter.enabled_const==false))
+		out << "\t\t\tfilter_params_t filter_params;\n";
+	else
+		comment << "\t\t\t//filter is disabled\n";
+	out << "\t\t} orig;\n";
+}
+
+
+void write_ctor()
+{
+	int i;
+	string tabtmp="";
+	
+	out << "Note::Note(int n, float v, program_t &prg, jack_nframes_t pf, fixed_t pb, int prg_no)\n"
+	       "{\n"	
+	       "\tcurr_prg=&prg;\n"
+	       "\t\n"
+	       "\toscval=new fixed_t["<< prog.n_osc <<"];\n"
+	       "\told_oscval=new fixed_t["<< prog.n_osc <<"];\n"
+	       "\tfor (int i=0;i<"<<prog.n_osc<<";i++)\n"
+				 "\t\toscval[i]=old_oscval[i]=0;\n"
+				 "\t\n"
+	       "\tpfactor.out=new fixed_t ["<<prog.n_osc<<"];\n"
+				 "\tpfactor.fm=new fixed_t* ["<<prog.n_osc<<"];\n"
+				 "\tfor (int i=0;i<"<<prog.n_osc<<";i++)\n"
+				 "\t\tpfactor.fm[i]=new fixed_t ["<<prog.n_osc<<"];\n"
+				 "\t\n";
+	
+	for (i=0;i<prog.n_osc;i++)
+		if (prog.env[i].enabled)
+			out << "\tenv"<<i<<"=new Envelope (prg.env_settings["<<i<<"]);\n";
+		else
+			comment << "\t//envelope"<<i<<" is disabled\n";
+
+	out << "\t\n";
+	
+	for (i=0;i<prog.n_osc;i++)
+	{
+		out << "\tosc"<<i<<"=prg.osc_settings["<<i<<"];\n"
+		       "\torig.osc"<<i<<"=prg.osc_settings["<<i<<"];\n";
+	}
+	
+	out << "\t\n";
+	
+	out << "\t//initalize oscillator.phase to multiples of their wave resolution\n";
+	for (i=0;i<prog.n_osc;i++)
+	{
+		out << "\tosc"<<i<<".phase=";
+		if (prog.osc[i].have_custom_wave)
+			out << "init_custom_osc_phase(osc"<<i<<".custom_wave->wave_len, osc"<<i<<".custom_wave->samp_rate);\n";
+		else
+			out << "ONE * PHASE_INIT;\n";
+	}
+	
+	out << "\t\n"
+	       "\tdo_ksl();\n"
+	       "\t\n"
+	       "\t\n";
+	
+	if ((prog.filter.enabled==true) || (prog.filter.enabled_const==false))
+	{
+		//a filter_params and orig.filter_params member exist
+		out << "\tfilter_params=prg.filter_settings;\n"
+		       "\torig.filter_params=prg.filter_settings;\n";
+		
+		if (prog.filter.enabled_const==false)
+		{
+			out << "\tif (filter_params.enabled)\n"
+			       "\t{\n";
+			tabtmp="\t";
+		}
+		out << tabtmp << "\tfilter_envelope=new Envelope(filter_params.env_settings);\n" <<
+		       tabtmp << "\tfilter_update_counter=filter_update_frames;\n";
+		if (prog.filter.enabled_const==false)
+			out << "\t}\n";
+		tabtmp="";
+		
+		out << "\t\n"
+		       "\t\n";
+	}
+	
+	
+	if ((prog.sync_factor!=0) || (prog.sync_factor_const==false))
+		out << "\tsync_factor=prg.sync_factor;\n"
+		       "\tsync_phase=0;\n"
+		       "\t\n"
+		       "\t\n";
+
+
+	include_file("ctor.foot");
+}
+
+void write_dtor()
+{
+	int i;
+	
+	out << "Note::~Note()\n"
+	       "{\n";
+	
+	for (i=0;i<prog.n_osc;i++)
+	{
+		out << "\tdelete [] osc"<<i<<".fm_strength;\n";
+		
+		if (prog.env[i].enabled)
+			out << "\tdelete env"<<i<<";\n";
+		else
+			comment << "\t//envelope"<<i<<" is disabled\n";
+			
+		out << "\tdelete pfactor.fm["<<i<<"];\n";
+			
+		out << "\t\n";
+	}
+	
+	out << "\t\n"
+	       "\tdelete [] oscval;\n"
+	       "\tdelete [] old_oscval;\n"
+	       "\t\n"
+				 "\tdelete [] pfactor.out;\n"
+				 "\tdelete [] pfactor.fm;\n"
+	       "}\n";
+}
+
+
+void write_recalc_factors()
+{
+	out << "void Note::recalc_factors()\n"
+	       "{\n";
+	
+	if ((prog.filter.enabled==true) || (prog.filter.enabled_const==false))
+	{
+		out << "\tpfactor.filter_env=calc_pfactor(curr_prg->pfactor.filter_env, vel);\n"
+					 "\tpfactor.filter_res=calc_pfactor(curr_prg->pfactor.filter_res, vel);\n"
+					 "\tpfactor.filter_offset=calc_pfactor(curr_prg->pfactor.filter_offset, vel);\n"
+					 "\t\n";
+	}
+	
+	out << "\tfor (int i=0;i<"<<prog.n_osc<<";i++)\n"
+				 "\t{\n"
+				 "\t\tpfactor.out[i]=calc_pfactor(curr_prg->pfactor.out[i], vel);\n"
+				 "\t\t\n"
+				 "\t\tfor (int j=0;j<"<<prog.n_osc<<";j++)\n"
+				 "\t\t\tpfactor.fm[i][j]=calc_pfactor(curr_prg->pfactor.fm[i][j], vel);\n"
+				 "\t}\n";
+	
+	out << "}\n";	
+}
+
+void write_apply_pfactor()
+{
+	out << "void Note::apply_pfactor()\n"
+	       "{\n";
+	
+	if ((prog.filter.enabled==true) || (prog.filter.enabled_const==false))
+		out << "\tfilter_params.env_amount=orig.filter_params.env_amount*pfactor.filter_env /ONE;\n"
+					 "\tfilter_params.freqfactor_offset=orig.filter_params.freqfactor_offset*pfactor.filter_offset /ONE;\n"
+					 "\tfilter_params.resonance=orig.filter_params.resonance*pfactor.filter_res /ONE;\n"
+					 "\t\n";
+		
+	for (int i=0;i<prog.n_osc;i++)
+	{
+		out << "\tosc"<<i<<".output=orig.osc"<<i<<".output*pfactor.out["<<i<<"] >>SCALE;\n"
+					 "\tfor (int i=0;i<"<<prog.n_osc<<";i++)\n"
+					 "\t\tosc"<<i<<".fm_strength[i]=orig.osc"<<i<<".fm_strength[i]*pfactor.fm["<<i<<"][i] >>SCALE;\n";
+	}
+
+	out << "}\n";
+}
+
+void write_still_active()
+{
+	out << "bool Note::still_active()\n"
+	       "{\n";
+	
+	out << "\tif (   ";
+	if (prog.env[0].enabled)
+		out << " ((osc"<<0<<".output>0) && (env"<<0<<"->still_active()))";
+	else
+		out << " // envelope"<<0<<" is disabled";
+		
+	for (int i=1;i<prog.n_osc;i++)
+	{
+		if (prog.env[i].enabled)
+			out <<  "\n\t     || ((osc"<<i<<".output>0) && (env"<<i<<"->still_active()))";
+		else
+			out <<  "\n\t        /* envelope"<<i<<" is disabled */";
+	}
+	
+	out << "  )\n"
+	       "\t\treturn true;\n"
+	       "\telse\n"
+	       "\t\treturn false;\n";
+	
+		
+	out << "}\n";
+}
+
+void write_release()
+{
+	out << "void Note::release()\n"
+	       "{\n";
+
+	for (int i=0;i<prog.n_osc;i++)
+	{
+		if (prog.env[i].enabled)
+			out << "\tenv"<<i<<"->release_key();\n";
+		else
+			comment << "\t//envelope"<<i<<" is disabled\n";
+	}
+	
+	
+	if (prog.filter.enabled && prog.filter.enabled_const)
+		out << "\n\tfilter_envelope->release_key();\n";
+	else if (prog.filter.enabled_const==false)
+		out << "\n\tif (filter_params.enabled)\n"
+		       "\t\tfilter_envelope->release_key();\n";
+	
+	out << "}\n";
+}
+
+void write_release_quickly()
+{
+	out << "void Note::release_quickly(jack_nframes_t maxt)\n"
+	       "{\n";
+
+	for (int i=0;i<prog.n_osc;i++)
+	{
+		if (prog.env[i].enabled)
+			out << "\tif (env"<<i<<"->get_release() > maxt)\n"
+			       "\t\tenv"<<i<<"->set_release(maxt);\n"
+			       "\tenv"<<i<<"->release_key();\n"
+			       "\t\n";
+		else
+			comment << "\t//envelope"<<i<<" is disabled\n"
+			           "\t\n";
+	}
+	
+	out << "}\n";
+}
+
+void write_reattack()
+{
+	out << "void Note::reattack()\n"
+	       "{\n";
+
+	for (int i=0;i<prog.n_osc;i++)
+	{
+		if (prog.env[i].enabled)
+			out << "\tenv"<<i<<"->reattack();\n";
+		else
+			comment << "\t//envelope"<<i<<" is disabled\n";
+	}
+	
+	
+	if (prog.filter.enabled && prog.filter.enabled_const)
+		out << "\n\tfilter_envelope->reattack();\n";
+	else if (prog.filter.enabled_const==false)
+		out << "\n\tif (filter_params.enabled)\n"
+		       "\t\tfilter_envelope->reattack();\n";
+	
+	out << "}\n";
+}
+
+void write_do_ksr()
+{
+	out << "void Note::do_ksr()\n"
+	       "{\n";
+	       
+	for (int i=0;i<prog.n_osc;i++)
+	{
+		if (prog.env[i].enabled)
+			out << "\tenv"<<i<<"->set_ratefactor(1.0 / pow(freq>>SCALE, osc"<<i<<".ksr));\n";
+		else
+			comment << "\t//envelope"<<i<<" is disabled\n";
+	}	       
+
+	out << "}\n";
+}
+
+void write_do_ksl()
+{
+	bool need_ksl=false;
+	
+	out << "void Note::do_ksl()\n"
+	       "{\n";
+	       
+	       
+	for (int i=0;i<prog.n_osc;i++)
+		if ( (prog.osc[i].ksl!=0) || (prog.osc[i].ksl_const==false) )	       
+	  {
+	  	need_ksl=true;
+	  	break;
+	  }	
+	
+	if (need_ksl)
+	{
+		out << "\tdouble tempfreq=double ( freq >> SCALE );\n"
+		       "\t\n";
+		
+		for (int i=0;i<prog.n_osc;i++)
+		{
+			if ( (prog.osc[i].ksl==0) && (prog.osc[i].ksl_const) )
+				comment << "\t//ksl is disabled for oscillator"<<i<<"\n";
+			else
+			{
+				string kslstring = "(  (osc"+IntToStr(i)+".ksl==0) ? ONE : ( fixed_t(double(ONE) / pow(tempfreq, osc"+IntToStr(i)+".ksl)) )  )";
+				
+				if (prog.env[i].enabled)
+					out << "\tenv"<<i<<"->set_max( "<<kslstring<<" );\n";
+				else
+					out << "\tkslval"<<i<<"="<<kslstring<<";\n";
+			}
+		}
+	}	
+	out << "}\n";
+}
+
+void write_get_sample()
+{
+	string tabtemp="";
+	
+	include_file("get_sample.1");
+	
+	{ //SYNC TODO
+	if (prog.sync_factor_const==false)
+	{
+		out << "\tif (sync_factor)\n"
+		       "\t{\n";
+		       
+		tabtemp="\t";
+	}
+	
+	if ( (prog.sync_factor_const==false) || (prog.sync_factor!=0) )
+	{
+		string temp;
+		if (prog.sync_factor_const)
+			temp=IntToStr(prog.sync_factor);
+		else
+			temp="sync_factor";
+			
+		out << tabtemp << "\tsync_phase+=(actual_freq*"<<temp<<"/samp_rate) >> SCALE;\n"
+		    << tabtemp << "\t\n"
+		    << tabtemp << "\tif (sync_phase >= ONE)\n"
+		    << tabtemp << "\t{\n"
+		    << tabtemp << "\t\tsync_phase-=ONE;\n"
+		    << tabtemp << "\t\t\n";
+		
+		for (int i=0;i<prog.n_osc;i++)
+		{
+			string initstring;
+			if (prog.osc[i].have_custom_wave)
+				initstring="init_custom_osc_phase(osc"+IntToStr(i)+".custom_wave->wave_len, osc"+IntToStr(i)+".custom_wave->samp_rate)";
+			else
+				initstring="ONE * PHASE_INIT";
+			
+			string full_command="osc"+IntToStr(i)+".phase="+initstring+";\n";
+			
+			if ( prog.osc[i].sync_const && prog.osc[i].sync )
+				out << tabtemp << "\t\t" << full_command;
+			else if ( prog.osc[i].sync_const && (prog.osc[i].sync==false) )
+				comment << tabtemp << "\t\t//sync is disabled for osc"<<i<<"\n";
+			else //if (prog.osc[i].sync_const==false)
+				out << tabtemp << "\t\tif (osc"<<i<<".sync) " <<full_command;
+		}
+		    
+		out << tabtemp << "\t}\n";
+		    
+	}
+	else //if ( (prog.sync_factor_const==true) && (prog.sync_factor==0) )
+		comment << "\t//sync is disabled\n";
+
+	if (prog.sync_factor_const==false)
+	{
+		out << "\t}\n";
+		       
+		tabtemp="";
+	}
+	out << "\t\n\t\n";
+	}	//SYNC TODO
+	
+	{ //OSCS TODO
+	string outstring_scaled="", outstring_nonscaled="";
+	
+	for (int i=0;i<prog.n_osc;i++)
+	{
+		// increment phase
+		string phase_inc_lfo = "(  (curr_lfo[osc"+IntToStr(i)+".vibrato_lfo][osc"+IntToStr(i)+".vibrato_depth]*actual_freq >>SCALE)*osc"+IntToStr(i)+".factor/samp_rate)>>SCALE";
+		string phase_inc = "(actual_freq*osc"+IntToStr(i)+".factor/samp_rate)>>SCALE";
+		if (prog.osc[i].vibrato_depth_const == false)
+			out << "\tosc"<<i<<".phase+= ( (osc"<<i<<".vibrato_depth==0) ? ("<<phase_inc<<") : ("<<phase_inc_lfo<<") );\n";
+		else if (prog.osc[i].vibrato_depth == 0)
+			out << "\tosc"<<i<<".phase+= "<<phase_inc<<";\n";
+		else
+			out << "\tosc"<<i<<".phase+= "<<phase_inc_lfo<<";\n";
+
+		// calculate phase modulation
+		string fm=""; //TODO FINDMICH: das >>SCALE fehlt noch!
+		for (int j=0;j<prog.n_osc;j++)
+		{
+			if (prog.osc[i].fm_strength_const[j] == false)
+				fm+="+ (old_oscval["+IntToStr(j)+"] * osc"+IntToStr(i)+".fm_strength["+IntToStr(j)+"]) ";
+			else if (prog.osc[i].fm_strength[j]!=0)
+				fm+="+ (old_oscval["+IntToStr(j)+"] * "+IntToStr(prog.osc[i].fm_strength[j])+") ";
+		}
+		
+		// generate string for modulated phase
+		string phase;
+		if (fm!="")
+			phase="(  osc"+IntToStr(i)+".phase + ( "+fm+">>SCALE )  )";
+		else
+			phase="osc"+IntToStr(i)+".phase";
+		
+		// generate string for wave 
+		string wavetemp;
+		if (prog.osc[i].have_custom_wave)
+		{
+			string cw="osc"+IntToStr(i)+".custom_wave";
+			wavetemp=cw+"->wave[ (     "+phase+" * "+cw+"->samp_rate   >>(2*SCALE)     ) % "+cw+"->wave_len ]";
+		}
+		else
+		{
+			string waveformtemp;
+			if (prog.osc[i].waveform_const)
+				waveformtemp=IntToStr(prog.osc[i].waveform);
+			else
+				waveformtemp="osc"+IntToStr(i)+".waveform";
+				
+			wavetemp="wave["+waveformtemp+"][ ( "+phase+" * WAVE_RES   >>SCALE ) % WAVE_RES ]";
+		}
+
+		// finally write "oscval[n]=..."
+		out << "\toscval["<<i<<"] = "<<wavetemp;
+		// figure out whether we need to multiply with the env, with ksl or not at all
+		if (prog.env[i].enabled)
+		  out<<" * env"<<i<<"->get_level()  >>SCALE;\n";
+		else if ( (prog.osc[i].ksl!=0) || (prog.osc[i].ksl_const==false) )
+		// i.e.: if osc[i] has a kslval variable
+			out<<" * kslval"<<i<<"  >>SCALE;\n";
+		else //no envelope, no kslval
+			out<<";\n";
+			
+
+		// maybe do tremolo
+		string tremlfo;
+		if (prog.osc[i].tremolo_lfo_const==false)
+			tremlfo="osc"+IntToStr(i)+".tremolo_lfo";
+		else
+			tremlfo=IntToStr(prog.osc[i].tremolo_lfo);
+		
+		if (prog.osc[i].tremolo_depth_const==false)
+			out << "\tif (osc"<<i<<".tremolo_depth)\n"
+			       "\t\toscval["<<i<<"] = oscval["<<i<<"] * curr_lfo["<<tremlfo<<"][osc"<<i<<".tremolo_depth]  >>SCALE;\n";
+		else if (prog.osc[i].tremolo_depth!=0)
+			out << "\toscval["<<i<<"] = oscval["<<i<<"] * curr_lfo["<<tremlfo<<"]["<<prog.osc[i].tremolo_depth<<"]  >>SCALE;\n";
+		else
+			comment << "\t//oscillator"<<i<<" has no tremolo\n";
+			
+		// maybe add this osc to the output
+		if (prog.osc[i].output_const==false)
+			outstring_scaled+="+ osc"+IntToStr(i)+".output*oscval["+IntToStr(i)+"] ";
+		else if (prog.osc[i].output==ONE)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"] ";
+		else if (prog.osc[i].output==ONE/2)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/2 ";
+		else if (prog.osc[i].output==ONE/3)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/3 ";
+		else if (prog.osc[i].output==ONE/4)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/4 ";
+		else if (prog.osc[i].output==ONE/5)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/5 ";
+		else if (prog.osc[i].output==ONE/6)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/6 ";
+		else if (prog.osc[i].output==ONE/7)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/7 ";
+		else if (prog.osc[i].output==ONE/8)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/8 ";
+		else if (prog.osc[i].output==ONE/9)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/9 ";
+		else if (prog.osc[i].output==ONE/10)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]/10 ";
+		else if (prog.osc[i].output==ONE*2)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]*2 ";
+		else if (prog.osc[i].output==ONE*3)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]*3 ";
+		else if (prog.osc[i].output==ONE*4)
+			outstring_nonscaled+="+ oscval["+IntToStr(i)+"]*4 ";
+		else if (prog.osc[i].output!=0)
+			outstring_scaled+="+ "+IntToStr(prog.osc[i].output)+"*oscval["+IntToStr(i)+"] ";
+		//else: output is 0, ignore it
+		
+		out << "\t\n";
+	}
+	
+	// generate, check and write the final outstring
+	string outstring="";
+	if (outstring_scaled!="")
+		outstring+="( "+outstring_scaled+"   >>SCALE )";
+	if (outstring_nonscaled!="")
+		outstring+=" "+outstring_nonscaled;
+		
+	if (outstring=="")
+		throw string ("this instrument has no output at all!");
+	
+	out << "\tfixed_t out = "<<outstring<<";\n"
+	       "\t\n"
+	       "\t\n";
+	} //OSCS TODO
+	
+	{ //FILTER TODO
+	tabtemp="";
+	
+	if (prog.filter.enabled_const==false)
+	{
+		out << "\tif (filter_params.enabled)\n"
+		       "\t{\n";
+		tabtemp="\t";
+	}
+	
+	if ((prog.filter.enabled_const==false) || (prog.filter.enabled==true))
+		out << tabtemp << "\tfilter_update_counter++;\n"
+		    << tabtemp << "\tif (filter_update_counter>=filter_update_frames)\n"
+		    << tabtemp << "\t{\n"
+		    << tabtemp << "\t\tfilter_update_counter=0;\n"
+		    << tabtemp << "\t\t\n"
+		    << tabtemp << "\t\tfloat cutoff= float(actual_freq)/ONE * \n"
+		    << tabtemp << "\t\t\tfloat(curr_lfo[filter_params.trem_lfo][filter_params.trem_strength])/ONE *\n"
+		    << tabtemp << "\t\t\t( filter_params.freqfactor_offset  +  filter_envelope->get_level() * filter_params.env_amount / float(ONE) );\n"
+		    << tabtemp << "\t\tfilter.set_params( cutoff, filter_params.resonance  );\n"
+		    << tabtemp << "\t}\n"
+		    << tabtemp << "\t\n"
+		    << tabtemp << "\tfilter.process_sample(&out);\n";
+	
+	if (prog.filter.enabled_const==false)
+	{
+		out << "\t}\n";
+		tabtemp="";
+	}
+	out << "\t\n";
+	}
+	
+	out << "\treturn out;\n";
+	out << "}\n";
+}
+
+void write_set_param()
+{
+	out << "void Note::set_param(const parameter_t &p, fixed_t v)\n"
+	       "{\n"
+	       "\toscillator_t* sel_osc=NULL;\n"
+	       "\toscillator_t* sel_orig_osc=NULL;\n"
+	       "\tEnvelope* sel_env=NULL;\n"
+				 "\t\n"
+	       "\tswitch (p.osc)\n"
+	       "\t{\n";
+	
+	for (int i=0;i<prog.n_osc;i++)
+	{
+		out << "\t\tcase "<<i<<": sel_osc=&osc"<<i<<"; sel_orig_osc=&orig.osc"<<i<<"; ";
+		
+		if (prog.env[i].enabled)
+			out << "sel_env=env"<<i<<"; ";
+		else
+			comment << "/* envelope"<<i<<" is disabled */ ";
+			
+		out << "break;\n";
+	}
+
+	out << "\t\t\n"
+	       "\t\tdefault: output_note(\"NOTE: trying to change the nonexistent oscillator\"+IntToStr(p.osc));\n"
+	       "\t}\n"
+	       "\t\n";
+	
+	include_file("set_param.1");
+	
+	
+	if ((prog.filter.enabled==true) || (prog.filter.enabled_const==false))
+	{
+		include_file("set_param.filter");
+		if (prog.filter.env_settings.enabled)
+			include_file("set_param.filterenv");
+		else
+			include_file("set_param.nofilterenv");
+	}
+	else
+		include_file("set_param.nofilter");
+	
+	if ((prog.sync_factor!=0) || (prog.sync_factor_const==false))
+		out << "\t\t\n"
+		       "\t\tcase SYNC_FACTOR: sync_factor=v; break;\n";
+	else
+		out << "\t\t\n"
+		       "\t\tcase SYNC_FACTOR: output_note(\"NOTE: trying to set sync_factor, but it's disabled\"); break;\n";
+	
+	out << "\t\t\n"
+				 "\t\tdefault: throw string(\"trying to set an unknown parameter\");\n"
+	       "\t}\n"
+	       "}\n";
+}
+
+void write_create_note()
+{
+	out << "extern \"C\" NoteSkel* create_note(int n, float v,program_t &prg, jack_nframes_t pf, fixed_t pb, int prg_no)\n"
+	       "{\n"
+	       "\treturn new Note(n,v,prg,pf,pb,prg_no);\n"
+	       "}\n";
+}
+
+void write_destroy()
+{
+	out << "void Note::destroy()\n"
+	       "{\n"
+	       "\tdelete this;\n"
+	       "}\n";
+}
+
+void generate_source()
+{
+	//#includes and definition of class Note
+	include_file("head.1");
+	write_env_decs();
+	write_empty_line();
+	write_oscval_decs();
+	write_empty_line();
+	write_osc_decs();
+	write_empty_line();
+	write_sync_decs();
+	write_empty_line();
+	write_filter_decs();
+	write_empty_line();
+	write_pfactor_decs();
+	include_file("head.2");
+	
+	
+	//implementation of Note's functions
+	write_ctor();
+	write_dtor();
+	write_destroy();
+	write_empty_line();
+	
+	write_recalc_factors();
+	write_apply_pfactor();
+	write_empty_line();
+	
+	write_still_active();
+	write_release();
+	write_release_quickly();
+	write_reattack();
+	write_empty_line();
+	
+	write_do_ksr();
+	write_do_ksl();
+	write_empty_line();
+	
+	write_get_sample();
+	write_empty_line();
+	
+	write_set_param();
+
+	write_empty_line();
+	write_empty_line();
+	write_empty_line();
+	
+	//implementation of create_note and init_vars
+	include_file("interface.1");
+}
+
+int main(int argc, char** argv)
+{
+	try
+	{
+		cerr << "parsing '"<<argv[1]<<"'..." << endl;
+		prog=parse(argv[1]);
+
+		generate_source();
+	}
+	catch(string err)
+	{
+		cerr << "FATAL: "<<err<<endl;
+	}
+
+	return 0;
+}