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/* stkdrone~ -- STK-based drone 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 "drone.h"
#define DEFAULT_FREQ 250.0
#define DEFAULT_PLUCK 0.25
typedef struct _stkdrone
{
t_object x_obj;
drone *x_stkdrone;
t_int x_on;
t_float x_freq;
t_float x_pluck;
} t_stkdrone;
static t_class *stkdrone_class;
static void *stkdrone_new(void)
{
t_stkdrone *x = (t_stkdrone *)pd_new(stkdrone_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_stkdrone = new drone( 50.0 )) == NULL ) {
post( "stkdrone~: cannot build drone instrument from STK" );
return NULL;
} else {
return (x);
}
}
static void stkdrone_freq(t_stkdrone* x, t_float ffreq)
{
if ( ffreq < 50.0 )
{
post("stkdrone~ : wrong frequency" );
return;
}
x->x_stkdrone->setFreq( (MY_FLOAT) ffreq );
x->x_freq = ffreq;
}
static void stkdrone_pluck(t_stkdrone* x, t_float fpluck)
{
if ( fpluck < 0.05 || fpluck > 0.35 )
{
post("stkdrone~ : wrong pluck argument" );
return;
}
x->x_stkdrone->pluck( (MY_FLOAT) fpluck );
x->x_pluck = fpluck;
}
static void stkdrone_play(t_stkdrone* x)
{
x->x_on = 1; // activate sound
x->x_stkdrone->noteOn( x->x_freq, x->x_pluck ); // start sound
}
static void stkdrone_stop(t_stkdrone* x)
{
x->x_on = 0; // deactivate sound
}
static t_int *stkdrone_perform(t_int *w)
{
t_float *out = (t_float *)(w[1]);
int n = (int)(w[2]);
t_stkdrone* x = (t_stkdrone*)(w[3]);
while ( n-- )
{
if ( x->x_on )
{
double dare;
dare = (float)x->x_stkdrone->tick();
// post( "synthesis : %f", dare );
*out=dare;
}
else
{
*(out) = 0.0;
}
out++;
}
return (w+4);
}
static void stkdrone_dsp(t_stkdrone *x, t_signal **sp)
{
dsp_add(stkdrone_perform, 3, sp[0]->s_vec, sp[0]->s_n, x);
}
extern "C" void stkdrone_tilde_setup(void)
{
stkdrone_class = class_new(gensym("stkdrone~"), (t_newmethod)stkdrone_new, 0,
sizeof(t_stkdrone), 0, A_NULL);
class_sethelpsymbol(stkdrone_class, gensym("help-stkdrone~.pd") );
class_addmethod(stkdrone_class, (t_method)stkdrone_dsp, gensym("dsp"), A_NULL);
class_addmethod(stkdrone_class, (t_method)stkdrone_play, gensym("play") , A_NULL);
class_addmethod(stkdrone_class, (t_method)stkdrone_stop, gensym("stop") , A_NULL);
class_addmethod(stkdrone_class, (t_method)stkdrone_freq, gensym("freq") , A_DEFFLOAT, A_NULL);
class_addmethod(stkdrone_class, (t_method)stkdrone_pluck, gensym("pluck") , A_DEFFLOAT, A_NULL);
}
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