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/* stksitar~ -- STK-based sitar synthesis
* requires STK library
* Copyleft 2001 Yves Degoyon.
* Permission is granted to use this software for any purpose provided you
* keep this copyright notice intact.
*
* THE AUTHOR AND HIS EXPLOITERS MAKE NO WARRANTY, EXPRESS OR IMPLIED,
* IN CONNECTION WITH THIS SOFTWARE.
*
*/
#include "m_pd.h"
#include "sitar.h"
#define DEFAULT_FREQ 250.0
#define DEFAULT_PLUCK 0.25
typedef struct _stksitar
{
t_object x_obj;
sitar *x_stksitar;
t_int x_on;
t_float x_freq;
t_float x_pluck;
} t_stksitar;
static t_class *stksitar_class;
static void *stksitar_new(void)
{
t_stksitar *x = (t_stksitar *)pd_new(stksitar_class);
x->x_freq = DEFAULT_FREQ;
x->x_pluck = DEFAULT_PLUCK;
outlet_new(&x->x_obj, &s_signal);
inlet_new( &x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("freq") );
inlet_new( &x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("pluck") );
if( (x->x_stksitar = new sitar( 50.0 )) == NULL ) {
post( "stksitar~: cannot build sitar instrument from STK" );
return NULL;
} else {
return (x);
}
}
static void stksitar_freq(t_stksitar* x, t_float ffreq)
{
if ( ffreq < 50.0 )
{
post("stksitar~ : wrong frequency" );
return;
}
x->x_stksitar->setFreq( (StkFloat) ffreq );
x->x_freq = ffreq;
}
static void stksitar_pluck(t_stksitar* x, t_float fpluck)
{
if ( fpluck < 0.05 || fpluck > 0.35 )
{
post("stksitar~ : wrong pluck argument" );
return;
}
x->x_stksitar->pluck( (StkFloat) fpluck );
x->x_pluck = fpluck;
}
static void stksitar_play(t_stksitar* x)
{
x->x_on = 1; // activate sound
x->x_stksitar->noteOn( x->x_freq, x->x_pluck ); // start sound
}
static void stksitar_stop(t_stksitar* x)
{
x->x_on = 0; // deactivate sound
}
static t_int *stksitar_perform(t_int *w)
{
t_float *out = (t_float *)(w[1]);
int n = (int)(w[2]);
t_stksitar* x = (t_stksitar*)(w[3]);
while ( n-- )
{
if ( x->x_on )
{
double dare;
dare = (float)x->x_stksitar->tick();
// post( "synthesis : %f", dare );
*out=dare;
}
else
{
*(out) = 0.0;
}
out++;
}
return (w+4);
}
static void stksitar_dsp(t_stksitar *x, t_signal **sp)
{
dsp_add(stksitar_perform, 3, sp[0]->s_vec, sp[0]->s_n, x);
}
extern "C" void stksitar_tilde_setup(void)
{
stksitar_class = class_new(gensym("stksitar~"), (t_newmethod)stksitar_new, 0,
sizeof(t_stksitar), 0, A_NULL);
class_sethelpsymbol(stksitar_class, gensym("help-stksitar~.pd"));
class_addmethod(stksitar_class, (t_method)stksitar_dsp, gensym("dsp"), A_NULL);
class_addmethod(stksitar_class, (t_method)stksitar_play, gensym("play") , A_NULL);
class_addmethod(stksitar_class, (t_method)stksitar_stop, gensym("stop") , A_NULL);
class_addmethod(stksitar_class, (t_method)stksitar_freq, gensym("freq") , A_DEFFLOAT, A_NULL);
class_addmethod(stksitar_class, (t_method)stksitar_pluck, gensym("pluck") , A_DEFFLOAT, A_NULL);
}
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