The synthesizer can now load the compiled notes

There are still issues:
 - filtertest.prog.so: output_note-message which is not true
 - huge size of the .so (48K are too much!)

54 files changed, 641 insertions, 30 deletions

diff --git a/TODO b/TODO
index 883a589..a86f48f 100644
--- a/TODO
+++ b/TODO
@@ -1,4 +1,10 @@
 TODO für den synth
+   o .so unloaden!
+   o envelope, filter, ggf. auch alles aus program.o im hauptprogramm
+     lassen? d.h. via init funktionspointer übergeben oder virtuelle
+     interfaceklassen benutzen (für envelope/filter z.B.)
+   o wave auf int*[] mit wave[i]=new int[] umbauen
+
 !!!o BUG: bei Note::set_param sollte statt dem eigentlichen param
           der orig gesetzt werden und dann neu berechnet werden!
 !!!o BUG: bei release und reattack: BEIDE male die filter-envelope beachten!
@@ -10,6 +16,7 @@ TODO für den synth
    o in get_sample(), beim aufaddieren zum out (und vmtl auf fm-)wert:
      erst nach dem addieren scalen, statt für jeden faktor einzeln
    o wenn sync global aus ist, kann auch osc.sync genullt werden
+   o beim default_program vielleicht auch ein optimiertes objekt benutzen?
              
    o filter_envelope könnte mit anderem ctor geinitet werden (weniger schreibarbeit)
    o notes compilieren und als .so-datei laden
diff --git a/note_compiler/howtocompile.txt b/note_compiler/howtocompile.txt
new file mode 100644
index 0000000..3bb6cd8
--- /dev/null
+++ b/note_compiler/howtocompile.txt
@@ -0,0 +1,4 @@
+gcc -fPIC -g -c -Wall a.c
+gcc -fPIC -g -c -Wall b.c
+gcc -shared -fPIC -Wl,-soname,libmystuff.so.1 \
+    -o libmystuff.so.1.0.1 a.o b.o -lc
diff --git a/note_compiler/main.cpp b/note_compiler/main.cpp
index 8612bd2..3015551 100644
--- a/note_compiler/main.cpp
+++ b/note_compiler/main.cpp
@@ -741,11 +741,11 @@ void write_create_note()
 	       "}\n";
 }
 
-void write_destroy_note()
+void write_destroy()
 {
-	out << "extern \"C\" void destroy_note(NoteSkel* obj)\n"
+	out << "void Note::destroy()\n"
 	       "{\n"
-	       "\tdelete obj;\n"
+	       "\tdelete this;\n"
 	       "}\n";
 }
 
@@ -770,6 +770,7 @@ void generate_source()
 	//implementation of Note's functions
 	write_ctor();
 	write_dtor();
+	write_destroy();
 	write_empty_line();
 	
 	write_recalc_factors();
@@ -795,9 +796,8 @@ void generate_source()
 	write_empty_line();
 	write_empty_line();
 	
-	//implementation of create_new_note and destroy_note
-	write_create_note();
-	write_destroy_note();
+	//implementation of create_note and init_vars
+	include_file("interface.1");
 }
 
 int main(int argc, char** argv)
diff --git a/note_compiler/plugin_factory/Makefile b/note_compiler/plugin_factory/Makefile
new file mode 100644
index 0000000..5446327
--- /dev/null
+++ b/note_compiler/plugin_factory/Makefile
@@ -0,0 +1,34 @@
+CXX=g++
+CFLAGS=-Wall -fpic -O2
+CXXFLAGS=$(CFLAGS)
+LDFLAGS=-shared -fpic  -Wl,-soname,libmystuff.so.1 -lc
+
+OBJ=envelope.o filter.o note_skel.o infile.o programs.o
+LIB=result.so
+
+DEPENDFILE = .depend
+
+
+SRC = $(OBJ:%.o=%.cpp)
+
+all: $(LIB)
+
+
+$(LIB): $(OBJ)
+	$(CXX) $(CXXFLAGS) -o $(LIB) $(OBJ) $(LDFLAGS)
+	
+
+depend dep: $(SRC)
+	$(CC) -MM $(SRC) > $(DEPENDFILE)
+
+-include $(DEPENDFILE)
+
+
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c $<
+
+.PHONY: clean dep depend
+
+clean:
+	rm -f $(OBJ) $(LIB)
+
diff --git a/note_compiler/plugin_factory/channel.cpp b/note_compiler/plugin_factory/channel.cpp
new file mode 120000
index 0000000..792f620
--- /dev/null
+++ b/note_compiler/plugin_factory/channel.cpp
@@ -0,0 +1 @@
+../../synth/channel.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/channel.h b/note_compiler/plugin_factory/channel.h
new file mode 120000
index 0000000..6c30b75
--- /dev/null
+++ b/note_compiler/plugin_factory/channel.h
@@ -0,0 +1 @@
+../../synth/channel.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/cli.cpp b/note_compiler/plugin_factory/cli.cpp
new file mode 120000
index 0000000..93de14b
--- /dev/null
+++ b/note_compiler/plugin_factory/cli.cpp
@@ -0,0 +1 @@
+../../synth/cli.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/cli.h b/note_compiler/plugin_factory/cli.h
new file mode 120000
index 0000000..5a26149
--- /dev/null
+++ b/note_compiler/plugin_factory/cli.h
@@ -0,0 +1 @@
+../../synth/cli.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/defines.cpp b/note_compiler/plugin_factory/defines.cpp
new file mode 120000
index 0000000..dc04029
--- /dev/null
+++ b/note_compiler/plugin_factory/defines.cpp
@@ -0,0 +1 @@
+../../synth/defines.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/defines.h b/note_compiler/plugin_factory/defines.h
new file mode 120000
index 0000000..89519f4
--- /dev/null
+++ b/note_compiler/plugin_factory/defines.h
@@ -0,0 +1 @@
+../../synth/defines.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/envelope.cpp b/note_compiler/plugin_factory/envelope.cpp
new file mode 120000
index 0000000..3acf96b
--- /dev/null
+++ b/note_compiler/plugin_factory/envelope.cpp
@@ -0,0 +1 @@
+../../synth/envelope.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/envelope.h b/note_compiler/plugin_factory/envelope.h
new file mode 120000
index 0000000..76975f0
--- /dev/null
+++ b/note_compiler/plugin_factory/envelope.h
@@ -0,0 +1 @@
+../../synth/envelope.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/filter.cpp b/note_compiler/plugin_factory/filter.cpp
new file mode 120000
index 0000000..04ac153
--- /dev/null
+++ b/note_compiler/plugin_factory/filter.cpp
@@ -0,0 +1 @@
+../../synth/filter.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/filter.h b/note_compiler/plugin_factory/filter.h
new file mode 120000
index 0000000..406f7e6
--- /dev/null
+++ b/note_compiler/plugin_factory/filter.h
@@ -0,0 +1 @@
+../../synth/filter.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/fixed.h b/note_compiler/plugin_factory/fixed.h
new file mode 120000
index 0000000..e6e1fb0
--- /dev/null
+++ b/note_compiler/plugin_factory/fixed.h
@@ -0,0 +1 @@
+../../synth/fixed.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/globals.cpp b/note_compiler/plugin_factory/globals.cpp
new file mode 120000
index 0000000..b38aed3
--- /dev/null
+++ b/note_compiler/plugin_factory/globals.cpp
@@ -0,0 +1 @@
+../../synth/globals.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/globals.h b/note_compiler/plugin_factory/globals.h
new file mode 120000
index 0000000..0e3a295
--- /dev/null
+++ b/note_compiler/plugin_factory/globals.h
@@ -0,0 +1 @@
+../../synth/globals.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/infile.cpp b/note_compiler/plugin_factory/infile.cpp
new file mode 100644
index 0000000..aca9ff1
--- /dev/null
+++ b/note_compiler/plugin_factory/infile.cpp
@@ -0,0 +1,362 @@
+#include <jack/jack.h>
+
+#include <cmath>
+#include <string>
+#include <iostream>
+
+#include "defines.h"
+#include "programs.h"
+#include "envelope.h"
+#include "fixed.h"
+#include "filter.h"
+#include "note_skel.h"
+
+using namespace std;
+
+int filter_update_frames=0;
+int samp_rate=0;
+fixed_t** wave=NULL;
+fixed_t** curr_lfo=NULL;
+
+typedef void output_note_func_t(string s);
+typedef string IntToStr_func_t(int i);
+
+output_note_func_t* output_note=NULL;
+IntToStr_func_t* IntToStr=NULL;
+
+class Note : public NoteSkel
+{
+	public:
+		Note(int n, float v,program_t &prg, jack_nframes_t pf, fixed_t pb, int prg_no);
+		~Note();
+		fixed_t get_sample();
+
+		void release_quickly(jack_nframes_t maxt);
+		void release();
+		void reattack();
+		bool still_active();
+		void set_param(const parameter_t &p, fixed_t v);
+		
+		void destroy();
+		
+	private:
+		void do_ksl();
+		void do_ksr();
+
+		void recalc_factors();
+		void apply_pfactor();
+
+// member variables begin here
+
+		Envelope *env0;
+		Envelope *env1;
+
+		fixed_t *oscval;
+		fixed_t *old_oscval;
+
+		oscillator_t osc0;
+		oscillator_t osc1;
+
+		//sync is disabled
+
+		LowPassFilter filter;
+		filter_params_t filter_params;
+		int filter_update_counter;
+		Envelope *filter_envelope;
+
+		//pfactors/velocity influence are disabled
+// member variables end here
+};
+
+//this function returns the smallest phase_init possible for a
+//given custom_wave which is greater or equal than PHASE_INIT
+#define PHASE_INIT 100
+inline fixed_t init_custom_osc_phase(int len, fixed_t sr)
+{
+	return ( (fixed_t(ceil( float(PHASE_INIT) * sr / len / ONE )) *len << (2*SCALE)) / sr);
+}
+
+
+Note::Note(int n, float v, program_t &prg, jack_nframes_t pf, fixed_t pb, int prg_no)
+{
+	curr_prg=&prg;
+	
+	oscval=new fixed_t[2];
+	old_oscval=new fixed_t[2];
+	for (int i=0;i<2;i++)
+		oscval[i]=old_oscval[i]=0;
+	
+	pfactor.out=new fixed_t [2];
+	pfactor.fm=new fixed_t* [2];
+	for (int i=0;i<2;i++)
+		pfactor.fm[i]=new fixed_t [2];
+	
+	env0=new Envelope (prg.env_settings[0]);
+	env1=new Envelope (prg.env_settings[1]);
+	
+	osc0=prg.osc_settings[0];
+	osc1=prg.osc_settings[1];
+	
+	//initalize oscillator.phase to multiples of their wave resolution
+	osc0.phase=ONE * PHASE_INIT;
+	osc1.phase=init_custom_osc_phase(osc1.custom_wave->wave_len, osc1.custom_wave->samp_rate);
+	
+	do_ksl();
+	
+	
+	filter_params=prg.filter_settings;
+	filter_envelope=new Envelope(filter_params.env_settings);
+	filter_update_counter=filter_update_frames;
+	
+	
+	portamento_frames=0;
+	set_portamento_frames(pf);
+		
+	set_note(n);
+	freq=dest_freq;
+	set_vel(v);
+	
+	pitchbend=pb;
+	
+	program=prg_no;
+}
+
+Note::~Note()
+{
+	delete [] osc0.fm_strength;
+	delete env0;
+	
+	delete [] osc1.fm_strength;
+	delete env1;
+	
+	
+	delete [] oscval;
+	delete [] old_oscval;
+}
+void Note::destroy()
+{
+	delete this;
+}
+
+void Note::recalc_factors()
+{
+}
+void Note::apply_pfactor()
+{
+}
+
+bool Note::still_active()
+{
+	if (    ((osc0.output>0) && (env0->still_active()))
+	     || ((osc1.output>0) && (env1->still_active()))  )
+		return true;
+	else
+		return false;
+}
+void Note::release()
+{
+	env0->release_key();
+	env1->release_key();
+
+	filter_envelope->release_key();
+}
+void Note::release_quickly(jack_nframes_t maxt)
+{
+	if (env0->get_release() > maxt)
+		env0->set_release(maxt);
+	env0->release_key();
+	
+	if (env1->get_release() > maxt)
+		env1->set_release(maxt);
+	env1->release_key();
+	
+}
+void Note::reattack()
+{
+	env0->reattack();
+	env1->reattack();
+
+	filter_envelope->reattack();
+}
+
+void Note::do_ksr()
+{
+	env0->set_ratefactor(1.0 / pow(freq>>SCALE, osc0.ksr));
+	env1->set_ratefactor(1.0 / pow(freq>>SCALE, osc1.ksr));
+}
+void Note::do_ksl()
+{
+	double tempfreq=double ( freq >> SCALE );
+	
+	env0->set_max( (  (osc0.ksl==0) ? ONE : ( fixed_t(double(ONE) / pow(tempfreq, osc0.ksl)) )  ) );
+	env1->set_max( (  (osc1.ksl==0) ? ONE : ( fixed_t(double(ONE) / pow(tempfreq, osc1.ksl)) )  ) );
+}
+
+fixed_t Note::get_sample()
+{
+	if (freq!=dest_freq)
+	{
+		// the div.by.zero if p_frames=0 is avoided because then the 
+		// if-condition below is always true
+		if (portamento_t>=portamento_frames)
+			freq=dest_freq;
+		else //will only happen if p_t < p_frames -> p_frames is always > 0 -> div. ok
+			freq = old_freq + (dest_freq-old_freq)*portamento_t/portamento_frames;
+		
+		do_ksl();
+		
+		portamento_t++;
+	}
+
+	fixed_t actual_freq=freq*pitchbend >>SCALE;
+
+	fixed_t *temp;
+	temp=old_oscval;   //swap the current and old oscval-pointers
+	old_oscval=oscval;
+	oscval=temp;
+
+
+	//sync is disabled
+	
+	
+	osc0.phase+= (actual_freq*osc0.factor/samp_rate)>>SCALE;
+	oscval[0] = wave[0][ ( (  osc0.phase + ( + (old_oscval[1] * osc0.fm_strength[1]) >>SCALE )  ) * WAVE_RES   >>SCALE ) % WAVE_RES ] * env0->get_level()  >>SCALE;
+	//oscillator0 has no tremolo
+	
+	osc1.phase+= (actual_freq*osc1.factor/samp_rate)>>SCALE;
+	oscval[1] = osc1.custom_wave->wave[ (     osc1.phase * osc1.custom_wave->samp_rate   >>(2*SCALE)     ) % osc1.custom_wave->wave_len ] * env1->get_level()  >>SCALE;
+	//oscillator1 has no tremolo
+	
+	fixed_t out = ( + osc0.output*oscval[0]    >>SCALE );
+	
+	
+	filter_update_counter++;
+	if (filter_update_counter>=filter_update_frames)
+	{
+		filter_update_counter=0;
+		
+		float cutoff= float(actual_freq)/ONE * 
+			float(curr_lfo[filter_params.trem_lfo][filter_params.trem_strength])/ONE *
+			( filter_params.freqfactor_offset  +  filter_envelope->get_level() * filter_params.env_amount / float(ONE) );
+		filter.set_params( cutoff, filter_params.resonance  );
+	}
+	
+	filter.process_sample(&out);
+	
+	return out;
+}
+
+void Note::set_param(const parameter_t &p, fixed_t v)
+{
+	oscillator_t *sel_osc=NULL;
+	Envelope *sel_env=NULL;
+	
+	switch (p.osc)
+	{
+		case 0: sel_osc=&osc0; sel_env=env0; break;
+		case 1: sel_osc=&osc1; sel_env=env1; break;
+		
+		default: output_note("NOTE: trying to change the nonexistent oscillator"+IntToStr(p.osc));
+	}
+	
+	if ( ((p.par==ATTACK) || (p.par==DECAY) || (p.par==SUSTAIN) || 
+	     (p.par==RELEASE) || (p.par==HOLD)) && sel_env==NULL )
+	{
+		output_note("NOTE: cannot change parameter for envelope"+IntToStr(p.osc)+" because it's disabled");
+		return;
+	}
+		
+	switch(p.par)
+	{
+		case ATTACK: sel_env->set_attack(v*samp_rate >>SCALE); break;
+		case DECAY: sel_env->set_decay(v*samp_rate >>SCALE); break;
+		case SUSTAIN: sel_env->set_sustain(v); break;
+		case RELEASE: sel_env->set_release(v*samp_rate >>SCALE); break;
+		case HOLD: sel_env->set_hold(v!=0); break;
+
+		case KSR: sel_osc->ksr=float(v)/ONE; break;
+		case KSL: sel_osc->ksl=float(v)/ONE; break;
+
+		case FACTOR: sel_osc->factor=v; break;
+		case TREMOLO: sel_osc->tremolo_depth=v; break;
+		case TREM_LFO: sel_osc->tremolo_lfo=v; break;
+		case VIBRATO: sel_osc->vibrato_depth=v; break;
+		case VIB_LFO: sel_osc->vibrato_lfo=v; break;
+		case WAVEFORM: sel_osc->waveform=v; break;
+		case SYNC: sel_osc->sync=(v!=0); break;
+
+		case MODULATION: sel_osc->fm_strength[p.index]=v; break;
+		case OUTPUT: sel_osc->output=v; break;
+		
+		case FILTER_ENABLED: output_note("NOTE: cannot enable filter in playing notes"); break;
+		
+		case FILTER_ATTACK:
+			if (filter_params.enabled)
+				filter_envelope->set_attack(v*samp_rate/filter_update_frames >>SCALE);
+			else
+				output_note("NOTE: cannot set filter-attack when filter is disabled");
+			break;
+
+		case FILTER_DECAY:
+			if (filter_params.enabled)
+				filter_envelope->set_decay(v*samp_rate/filter_update_frames >>SCALE);
+			else
+				output_note("NOTE: cannot set filter-decay when filter is disabled");
+			break;
+
+		case FILTER_SUSTAIN:
+			if (filter_params.enabled)
+				filter_envelope->set_sustain(v);
+			else
+				output_note("NOTE: cannot set filter-sustain when filter is disabled");
+			break;
+
+		case FILTER_RELEASE:
+			if (filter_params.enabled)
+				filter_envelope->set_release(v*samp_rate/filter_update_frames >>SCALE);
+			else
+				output_note("NOTE: cannot set filter-release when filter is disabled");
+			break;
+
+		case FILTER_HOLD:
+			if (filter_params.enabled)
+				filter_envelope->set_hold(v!=0);
+			else
+				output_note("NOTE: cannot set filter-hold when filter is disabled");
+			break;
+
+		case FILTER_ENV_AMOUNT: filter_params.env_amount=float(v)/ONE; break;
+		case FILTER_OFFSET: filter_params.freqfactor_offset=float(v)/ONE; break;
+		case FILTER_RESONANCE: filter_params.resonance=float(v)/ONE; break;
+		case FILTER_TREMOLO: filter_params.trem_strength=v; break;
+		case FILTER_TREM_LFO: filter_params.trem_lfo=v; break;
+		
+		case SYNC_FACTOR: output_note("NOTE: trying to set sync_factor, but it's disabled"); break;
+		
+		default: throw string("trying to set an unknown parameter");
+	}
+}
+
+
+
+extern "C" NoteSkel* create_note(int n, float v,program_t &prg, jack_nframes_t pf, fixed_t pb, int prg_no)
+{
+	cout << "test" << endl;
+	if (wave==NULL)
+		throw string("FATAL: trying to create a new note from a shared object without initalizing\n"
+		             "  the object first! this should /never/ happen, please contact the developer");
+	
+	return new Note(n,v,prg,pf,pb,prg_no);
+}
+
+extern "C" void init_vars(int sr, int fupfr, fixed_t **w, fixed_t **clfo, output_note_func_t* out_n, IntToStr_func_t* its)
+{
+	cout << "inited." << endl;
+	samp_rate=sr;
+	filter_update_frames=fupfr;
+	wave=w;
+	curr_lfo=clfo;
+	IntToStr=its;
+	output_note=out_n;
+}
+
diff --git a/note_compiler/plugin_factory/jack.cpp b/note_compiler/plugin_factory/jack.cpp
new file mode 120000
index 0000000..83a42b1
--- /dev/null
+++ b/note_compiler/plugin_factory/jack.cpp
@@ -0,0 +1 @@
+../../synth/jack.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/jack.h b/note_compiler/plugin_factory/jack.h
new file mode 120000
index 0000000..5c4c8cf
--- /dev/null
+++ b/note_compiler/plugin_factory/jack.h
@@ -0,0 +1 @@
+../../synth/jack.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/load.cpp b/note_compiler/plugin_factory/load.cpp
new file mode 120000
index 0000000..c08bf33
--- /dev/null
+++ b/note_compiler/plugin_factory/load.cpp
@@ -0,0 +1 @@
+../../synth/load.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/load.h b/note_compiler/plugin_factory/load.h
new file mode 120000
index 0000000..3f30401
--- /dev/null
+++ b/note_compiler/plugin_factory/load.h
@@ -0,0 +1 @@
+../../synth/load.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/main.cpp b/note_compiler/plugin_factory/main.cpp
new file mode 120000
index 0000000..b9733e2
--- /dev/null
+++ b/note_compiler/plugin_factory/main.cpp
@@ -0,0 +1 @@
+../../synth/main.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/note.cpp b/note_compiler/plugin_factory/note.cpp
new file mode 120000
index 0000000..2b806ab
--- /dev/null
+++ b/note_compiler/plugin_factory/note.cpp
@@ -0,0 +1 @@
+../../synth/note.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/note.h b/note_compiler/plugin_factory/note.h
new file mode 120000
index 0000000..200f314
--- /dev/null
+++ b/note_compiler/plugin_factory/note.h
@@ -0,0 +1 @@
+../../synth/note.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/note_funcs.h b/note_compiler/plugin_factory/note_funcs.h
new file mode 120000
index 0000000..685d295
--- /dev/null
+++ b/note_compiler/plugin_factory/note_funcs.h
@@ -0,0 +1 @@
+../../synth/note_funcs.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/note_loader.cpp b/note_compiler/plugin_factory/note_loader.cpp
new file mode 120000
index 0000000..e5cca64
--- /dev/null
+++ b/note_compiler/plugin_factory/note_loader.cpp
@@ -0,0 +1 @@
+../../synth/note_loader.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/note_loader.h b/note_compiler/plugin_factory/note_loader.h
new file mode 120000
index 0000000..9155410
--- /dev/null
+++ b/note_compiler/plugin_factory/note_loader.h
@@ -0,0 +1 @@
+../../synth/note_loader.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/note_skel.cpp b/note_compiler/plugin_factory/note_skel.cpp
new file mode 120000
index 0000000..e85be17
--- /dev/null
+++ b/note_compiler/plugin_factory/note_skel.cpp
@@ -0,0 +1 @@
+../../synth/note_skel.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/note_skel.h b/note_compiler/plugin_factory/note_skel.h
new file mode 120000
index 0000000..780165e
--- /dev/null
+++ b/note_compiler/plugin_factory/note_skel.h
@@ -0,0 +1 @@
+../../synth/note_skel.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/parser.cpp b/note_compiler/plugin_factory/parser.cpp
new file mode 120000
index 0000000..b849baf
--- /dev/null
+++ b/note_compiler/plugin_factory/parser.cpp
@@ -0,0 +1 @@
+../../synth/parser.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/parser.h b/note_compiler/plugin_factory/parser.h
new file mode 120000
index 0000000..c303d77
--- /dev/null
+++ b/note_compiler/plugin_factory/parser.h
@@ -0,0 +1 @@
+../../synth/parser.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/programs.cpp b/note_compiler/plugin_factory/programs.cpp
new file mode 120000
index 0000000..4a5fa05
--- /dev/null
+++ b/note_compiler/plugin_factory/programs.cpp
@@ -0,0 +1 @@
+../../synth/programs.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/programs.h b/note_compiler/plugin_factory/programs.h
new file mode 120000
index 0000000..77c6b54
--- /dev/null
+++ b/note_compiler/plugin_factory/programs.h
@@ -0,0 +1 @@
+../../synth/programs.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/readwave.cpp b/note_compiler/plugin_factory/readwave.cpp
new file mode 120000
index 0000000..d422f94
--- /dev/null
+++ b/note_compiler/plugin_factory/readwave.cpp
@@ -0,0 +1 @@
+../../synth/readwave.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/readwave.h b/note_compiler/plugin_factory/readwave.h
new file mode 120000
index 0000000..74f5e95
--- /dev/null
+++ b/note_compiler/plugin_factory/readwave.h
@@ -0,0 +1 @@
+../../synth/readwave.h
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/util.cpp b/note_compiler/plugin_factory/util.cpp
new file mode 120000
index 0000000..452cd9e
--- /dev/null
+++ b/note_compiler/plugin_factory/util.cpp
@@ -0,0 +1 @@
+../../synth/util.cpp
\ No newline at end of file
diff --git a/note_compiler/plugin_factory/util.h b/note_compiler/plugin_factory/util.h
new file mode 120000
index 0000000..56353d9
--- /dev/null
+++ b/note_compiler/plugin_factory/util.h
@@ -0,0 +1 @@
+../../synth/util.h
\ No newline at end of file
diff --git a/note_compiler/templates/head.1 b/note_compiler/templates/head.1
index 3d9e903..af3c227 100644
--- a/note_compiler/templates/head.1
+++ b/note_compiler/templates/head.1
@@ -1,17 +1,29 @@
 #include <jack/jack.h>
 
 #include <cmath>
+#include <string>
 
-#include "globals.h"
 #include "defines.h"
 #include "programs.h"
 #include "envelope.h"
 #include "fixed.h"
 #include "filter.h"
 #include "note_skel.h"
+#include "util.h"
 
 using namespace std;
 
+int filter_update_frames=0;
+int samp_rate=0;
+fixed_t** wave=NULL;
+fixed_t** curr_lfo=NULL;
+
+typedef void output_note_func_t(string s);
+typedef string IntToStr_func_t(int i);
+
+output_note_func_t* output_note=NULL;
+IntToStr_func_t* IntToStr=NULL;
+
 class Note : public NoteSkel
 {
 	public:
@@ -25,6 +37,8 @@ class Note : public NoteSkel
 		bool still_active();
 		void set_param(const parameter_t &p, fixed_t v);
 		
+		void destroy();
+		
 	private:
 		void do_ksl();
 		void do_ksr();
diff --git a/note_compiler/templates/interface.1 b/note_compiler/templates/interface.1
new file mode 100644
index 0000000..cacc175
--- /dev/null
+++ b/note_compiler/templates/interface.1
@@ -0,0 +1,19 @@
+extern "C" NoteSkel* create_note(int n, float v,program_t &prg, jack_nframes_t pf, fixed_t pb, int prg_no)
+{
+	if (wave==NULL)
+		throw string("FATAL: trying to create a new note from a shared object without initalizing\n"
+		             "  the object first! this should /never/ happen, please contact the developer");
+	
+	return new Note(n,v,prg,pf,pb,prg_no);
+}
+
+extern "C" void init_vars(int sr, int fupfr, fixed_t **w, fixed_t **clfo, output_note_func_t* out_n, IntToStr_func_t* its)
+{
+	samp_rate=sr;
+	filter_update_frames=fupfr;
+	wave=w;
+	curr_lfo=clfo;
+	IntToStr=its;
+	output_note=out_n;
+}
+
diff --git a/synth/Makefile b/synth/Makefile
index f84441c..c1d6dab 100644
--- a/synth/Makefile
+++ b/synth/Makefile
@@ -1,9 +1,9 @@
 CXX=g++
-CFLAGS=-Wall -g
+CFLAGS=-Wall -O2
 CXXFLAGS=$(CFLAGS)
 LDFLAGS=-lm `pkg-config --cflags --libs jack`
 
-OBJ=channel.o cli.o defines.o envelope.o filter.o globals.o jack.o load.o main.o note.o note_skel.o parser.o programs.o readwave.o util.o
+OBJ=channel.o cli.o defines.o envelope.o filter.o globals.o jack.o load.o main.o note.o note_skel.o parser.o programs.o readwave.o util.o note_loader.o
 BIN=synth
 
 DEPENDFILE = .depend
diff --git a/synth/channel.cpp b/synth/channel.cpp
index ddad9fe..d70b199 100644
--- a/synth/channel.cpp
+++ b/synth/channel.cpp
@@ -5,6 +5,8 @@
 
 #include "note.h"
 
+#include "note_funcs.h"
+
 
 Channel::Channel()
 {
@@ -34,7 +36,7 @@ void Channel::cleanup()
 	for (it=notes.begin(); it!=notes.end(); it++)
 		if ((*it)->still_active()==false)
 		{
-			delete *it;
+			(*it)->destroy();
 			it=notes.erase(it);
 		}
 }
@@ -86,15 +88,22 @@ void Channel::note_on(int note, int vel)
 			{
 				//if the program has changed, kill the previous note and
 				//create a new one
-				delete n;
+				n->destroy();
 				notes.clear();
 				
-				notes.push_back(  new Note(note,(float)vel/128.0,
-																	 curr_prg,
-																	 portamento_frames,
-																	 pitchbend, 
-																	 program)  );
-				
+				NoteSkel *newnote=NULL;
+				if (curr_prg.create_func==NULL)
+					newnote = new Note(note,(float)vel/128.0,
+														 curr_prg,
+														 portamento_frames, pitchbend, 
+														 program);
+				else
+					newnote = curr_prg.create_func(note,(float)vel/128.0,
+																				 curr_prg,
+																				 portamento_frames, pitchbend, 
+																				 program);
+
+				notes.push_back(newnote);
 			}
 			else //program did not change
 			{
@@ -122,11 +131,22 @@ void Channel::note_on(int note, int vel)
 					}
 			}
 			if (neednewnote)
-				notes.push_back(  new Note(note,(float)vel/128.0,
-																	 curr_prg,
-																	 portamento_frames,
-																	 pitchbend, 
-																	 program)  );
+			{
+				NoteSkel *newnote=NULL;
+				if (curr_prg.create_func==NULL)
+					newnote = new Note(note,(float)vel/128.0,
+														 curr_prg,
+														 portamento_frames, pitchbend, 
+														 program);
+				else
+					newnote = curr_prg.create_func(note,(float)vel/128.0,
+																				 curr_prg,
+																				 portamento_frames, pitchbend, 
+																				 program);
+
+				notes.push_back(newnote);
+			}
+
 			apply_voice_limit();
 		}
 	}                                                  
@@ -167,7 +187,7 @@ void Channel::apply_voice_limit()
 			else
 				for (int i=0;i<diff;i++)
 				{
-					delete (*it);
+					(*it)->destroy();
 					it=notes.erase(it);
 				}
 		}
@@ -313,7 +333,7 @@ void Channel::panic()
 	list<NoteSkel*>::iterator it;
 	for (it=notes.begin(); it!=notes.end();)
 	{
-		delete *it;
+		(*it)->destroy();
 		it=notes.erase(it);
 	}
 }
diff --git a/synth/globals.cpp b/synth/globals.cpp
index 5b256b3..d6af5f2 100644
--- a/synth/globals.cpp
+++ b/synth/globals.cpp
@@ -3,7 +3,7 @@
 fixed_t **lfo[N_LFOS];
 fixed_t *curr_lfo[N_LFOS+1];
 
-fixed_t wave[N_WAVEFORMS][WAVE_RES];
+fixed_t* wave[N_WAVEFORMS];
 
 fixed_t sample_and_hold[N_LFO_LEVELS];
 
diff --git a/synth/globals.h b/synth/globals.h
index b7c9109..ad921c2 100644
--- a/synth/globals.h
+++ b/synth/globals.h
@@ -14,7 +14,7 @@ using namespace std;
 extern fixed_t **lfo[N_LFOS];
 extern fixed_t *curr_lfo[N_LFOS+1];
 
-extern fixed_t wave[N_WAVEFORMS][WAVE_RES];
+extern fixed_t* wave[N_WAVEFORMS];
 
 extern fixed_t sample_and_hold[N_LFO_LEVELS];
 
diff --git a/synth/jack.cpp b/synth/jack.cpp
index 1c434f9..8d599de 100644
--- a/synth/jack.cpp
+++ b/synth/jack.cpp
@@ -329,8 +329,8 @@ int process_callback(jack_nframes_t nframes, void *notused)
 		if (lastframe>tmp+44100*4)
 		{
 			tmp2=2;
-			channel[0]->event(0x90,87,5);
-			channel[0]->set_controller(57, 127);
+			//channel[0]->event(0x90,87,5);
+			channel[0]->set_controller(58, 0);
 			cout << "BÄÄM2" << endl;
 		}
 	}
diff --git a/synth/main.cpp b/synth/main.cpp
index ae2e0d8..56c47b9 100644
--- a/synth/main.cpp
+++ b/synth/main.cpp
@@ -12,6 +12,7 @@
 #include "programs.h"
 #include "defines.h"
 #include "globals.h"
+#include "note_loader.h"
 
 using namespace std;
 
@@ -104,6 +105,24 @@ int main(int argc, char** argv)
 				try
 				{
 					program_settings[i]=parse(programfile[i]);
+					
+					// try to load the appropriate .so file
+					if (access(  (programfile[i]+".so").c_str(), R_OK ) == 0)
+					{
+						try
+						{
+							cout << "trying to load..."<<endl;
+							load_note_from_so(programfile[i]+".so", program_settings[i]);
+						}
+						catch (string err)
+						{
+							output_note("NOTE: could not load shared object '"+programfile[i]+".so"+"':\n"
+							            "  "+err+"\n"
+							            "  this is not fatal, the note has been loaded properly, but generic\n"
+							            "  unoptimized (slow) code will be used.");
+						}        
+					}
+					
 				}
 				catch (string err)
 				{
@@ -119,7 +138,9 @@ int main(int argc, char** argv)
 			}
 		}
 		
-				
+		for (i=0;i<N_WAVEFORMS;i++)
+			wave[i]=new fixed_t[WAVE_RES];
+			
 		for (i=0;i<WAVE_RES;i++)
 		{
 			wave[0][i]=sin(i*2.0*3.141592654/WAVE_RES)*ONE;
diff --git a/synth/note.cpp b/synth/note.cpp
index 2f192f2..a0d6226 100644
--- a/synth/note.cpp
+++ b/synth/note.cpp
@@ -393,3 +393,8 @@ fixed_t Note::get_sample()
 		return out;
 	}
 }
+
+void Note::destroy()
+{
+	delete this;
+}
diff --git a/synth/note.h b/synth/note.h
index aab471c..7c36d69 100644
--- a/synth/note.h
+++ b/synth/note.h
@@ -22,6 +22,8 @@ class Note : public NoteSkel
 		bool still_active();
 		void set_param(const parameter_t &p, fixed_t v);
 		
+		void destroy();
+		
 	private:
 		void do_ksl();
 		void do_ksr();
diff --git a/synth/note_funcs.h b/synth/note_funcs.h
new file mode 100644
index 0000000..2a9d3c0
--- /dev/null
+++ b/synth/note_funcs.h
@@ -0,0 +1,20 @@
+#ifndef __NOTE_FUNCS_H
+#define __NOTE_FUNCS_H
+
+#include <jack/jack.h>
+
+#include "fixed.h"
+#include <string>
+
+using namespace std;
+
+class NoteSkel;
+struct program_t;
+
+typedef void output_note_func_t(string s);
+typedef string IntToStr_func_t(int i);
+
+typedef NoteSkel* create_func_t (int, float, program_t&, jack_nframes_t, fixed_t, int);
+typedef void init_func_t(int sr, int fupfr, fixed_t **w, fixed_t **clfo, output_note_func_t* out_n, IntToStr_func_t* its);
+
+#endif
diff --git a/synth/note_loader.cpp b/synth/note_loader.cpp
new file mode 100644
index 0000000..b7ccc99
--- /dev/null
+++ b/synth/note_loader.cpp
@@ -0,0 +1,44 @@
+
+#include <iostream>
+#include <dlfcn.h>
+
+#include "note_loader.h"
+#include "programs.h"
+#include "note_funcs.h"
+#include "globals.h"
+
+using namespace std;
+
+void load_note_from_so(string file, program_t &prog)
+{
+	void *handle;
+	
+	handle = dlopen(file.c_str(), RTLD_LAZY);
+	
+	if (handle==NULL)
+		throw string("could not open shared object (")+string(dlerror())+string(")");
+	
+	try
+	{
+		prog.create_func=(create_func_t*) dlsym(handle,"create_note");
+		if (prog.create_func==NULL)
+			throw string("could not find symbol create_note in shared object (")+dlerror()+")";	
+
+		init_func_t* initfunc=(init_func_t*) dlsym(handle,"init_vars");
+		if (initfunc==NULL)
+			throw string("could not find symbol init_vars in shared object (")+dlerror()+")";	
+		
+		initfunc(samp_rate, filter_update_frames, wave, curr_lfo, &output_note, &IntToStr);
+		
+
+		
+		prog.dl_handle=handle;
+	}
+	catch (string err)
+	{
+		prog.create_func=NULL;
+		prog.dl_handle=NULL;
+		dlclose(handle);
+		throw err;
+	}
+}
diff --git a/synth/note_loader.h b/synth/note_loader.h
new file mode 100644
index 0000000..a922f3c
--- /dev/null
+++ b/synth/note_loader.h
@@ -0,0 +1,13 @@
+#ifndef __NOTE_LOADER_H__
+#define __NOTE_LOADER_H__
+
+#include <string>
+#include <jack/jack.h>
+
+#include "programs.h"
+
+using namespace std;
+
+void load_note_from_so(string file, program_t &prog); //throws string
+
+#endif
diff --git a/synth/note_skel.h b/synth/note_skel.h
index d3b5a13..6aebb8b 100644
--- a/synth/note_skel.h
+++ b/synth/note_skel.h
@@ -30,6 +30,8 @@ class NoteSkel
 
 		virtual void set_param(const parameter_t &p, fixed_t v)=0;
 		
+		virtual void destroy()=0;
+		
 	protected:
 		virtual void do_ksl()=0;
 		virtual void do_ksr()=0;
diff --git a/synth/programs.cpp b/synth/programs.cpp
index be82fed..094f209 100644
--- a/synth/programs.cpp
+++ b/synth/programs.cpp
@@ -49,6 +49,9 @@ program_t::program_t()
 	
 	pfactor.fm=NULL;
 	pfactor.out=NULL;
+	
+	create_func=NULL;
+	dl_handle=NULL;
 }
 
 program_t::~program_t()
@@ -115,6 +118,10 @@ program_t& program_t::operator=(const program_t &that)
 			memcpy(this->pfactor.fm[i], that.pfactor.fm[i], sizeof(param_factor_t)*n_osc);
 		}
 		
+		
+		this->create_func=that.create_func;
+		this->dl_handle=that.dl_handle;
+		
 		return *this;
 	}
 	else
diff --git a/synth/programs.h b/synth/programs.h
index e0b409c..9d8d8cc 100644
--- a/synth/programs.h
+++ b/synth/programs.h
@@ -7,6 +7,7 @@
 #include <list>
 
 #include "fixed.h"
+#include "note_funcs.h"
 #include <jack/jack.h>
 
 using namespace std;
@@ -173,7 +174,10 @@ struct program_t
 	
 	pfactor_formula_t pfactor;
 		
-
+	
+	void *dl_handle;
+	create_func_t *create_func;
+	
 
 	program_t();
 	~program_t();