pmpd version 0.06

test version!

svn path=/trunk/externals/pmpd/; revision=2185

1 files changed, 323 insertions, 0 deletions

diff --git a/src/pmpd~.c b/src/pmpd~.c
new file mode 100755
index 0000000..ed17b68
--- /dev/null
+++ b/src/pmpd~.c
@@ -0,0 +1,323 @@
+//////////////////////////////////////////////////////////////////////

+// this is the standard blablabla 

+// made for pd

+// Gnu Public Licence

+// cyrille.henry@la-kitchen.fr

+//

+// pmpd~

+// The same than pmpd, but with audio data for input and output

+// It can be used for particular physical modeling and for modal sound synthesis

+//////////////////////////////////////////////////////////////////////

+

+

+#include "m_pd.h"

+#include "stdio.h"

+

+#define max(a,b) ( ((a) > (b)) ? (a) : (b) ) 

+#define min(a,b) ( ((a) < (b)) ? (a) : (b) ) 

+

+static t_class *pmpd_tilde_class;

+

+typedef struct _mass {

+	t_int Id;

+	t_float invM;

+	t_float speedX;

+	t_float posX;

+	t_float forceX;

+} foo;

+

+typedef struct _link {

+	t_int Id;

+	struct _mass *mass1;

+	struct _mass *mass2;

+	t_float Ke, K1, D1, K2, D2;

+} foo1;

+

+typedef struct _out {

+	// TODO ajouter un type pour diferencier les outlets en forces et celles en position

+	t_int Id;

+	t_int nbr_outlet;

+	struct _mass *mass1;

+	t_float influence;

+} foo2;

+

+typedef struct _in {

+	// TODO ajouter un type pour diferencier les inlets en forces et celles en position

+	t_int Id;

+	t_int nbr_inlet;

+	struct _mass *mass1;

+	t_float influence;

+} foo3;

+

+typedef struct _pmpd_tilde {

+	t_object  x_obj;

+	struct _link link[nb_max_link];

+	struct _mass mass[nb_max_mass];

+	struct _out out[nb_max_out];

+	struct _in in[nb_max_in];

+	t_float outlet[nb_max_outlet];

+	t_sample *outlet_vector[nb_max_outlet];

+	t_sample *inlet_vector[nb_max_inlet];

+	int nb_link, nb_mass, nb_inlet, nb_outlet, nb_in, nb_out;

+	t_sample f; // used for signal inlet

+	t_int loop, nb_loop; // to be able not to compute everything a each iteration

+	unsigned int x_state; // random

+    t_float x_f; // random

+} t_pmpd_tilde;

+

+static int makeseed_pmpd_tilde(void)

+{

+    static unsigned int random_nextseed = 1489853723;

+    random_nextseed = random_nextseed * 435898247 + 938284287;

+    return (random_nextseed & 0x7fffffff);

+}

+

+static float random_bang_pmpd_tilde(t_pmpd_tilde *x)

+{

+    int nval;

+    int range = 2000000;

+	float rnd;

+	unsigned int randval = x->x_state;

+	x->x_state = randval = randval * 472940017 + 832416023;

+    nval = ((double)range) * ((double)randval)

+    	* (1./4294967296.);

+    if (nval >= range) nval = range-1;

+

+	rnd=nval;

+

+	rnd-=1000000;

+	rnd=rnd/1000000.;	//pour mettre entre -1 et 1;

+    return (rnd);

+}

+

+t_int *pmpd_tilde_perform(t_int *w)

+///////////////////////////////////////////////////////////////////////////////////

+{

+	t_pmpd_tilde *x = (t_pmpd_tilde *)(w[1]);

+	int n = (int)(w[2]);

+

+	t_float F;

+	t_int i;

+	struct _mass mass_1, mass_2;

+

+	t_sample *out[nb_max_outlet]; 

+	t_sample *in[nb_max_inlet];

+

+	for (i=0; i<x->nb_inlet; i++)

+		// TODO : ameliorer la copie du tableau a l'initialisation

+		in[i]= x->inlet_vector[i];

+

+	for (i=0; i<x->nb_outlet; i++)

+		// TODO : ameliorer la copie du tableau

+		out[i]= x->outlet_vector[i];

+

+	while (n--) 

+	{

+		if (++x->loop == x->nb_loop)

+		{

+			x->loop = 0;

+

+			for (i=0; i<x->nb_in; i++)

+				if ( x->in[i].influence == 0)

+				// get inlet value and make it a position to the specified mass

+					x->in[i].mass1->posX = *in[x->in[i].nbr_inlet];

+				else

+				// get inlet value and make it a force to the specified mass

+					x->in[i].mass1->forceX += x->in[i].influence * *in[x->in[i].nbr_inlet];

+

+			for (i=0; i<x->nb_link; i++)

+			// compute forces generated by links (spring / dashpot)

+			{

+				F  = x->link[i].K1 * ( x->link[i].mass1->posX   - x->link[i].mass2->posX  ) ;

+				// spring

+

+				F += x->link[i].D1 * ( x->link[i].mass1->speedX - x->link[i].mass2->speedX) ;

+				// dashpot

+			

+				x->link[i].mass1->forceX -= F;

+				x->link[i].mass2->forceX += F;

+			}

+

+			for (i=1; i<x->nb_mass; i++)

+			// compute new masses position

+				if (x->mass[i].Id >0) // only if Id >0

+				{

+					x->mass[i].speedX += x->mass[i].forceX * x->mass[i].invM;

+					x->mass[i].forceX = random_bang_pmpd_tilde(x) * 1e-25;

+					x->mass[i].posX += x->mass[i].speedX ;

+				}

+		}	

+

+		for (i=0; i<x->nb_inlet; i++)

+		// increase pointer to inlet vectors value

+			in[i]++;

+

+		for (i=0; i<x->nb_out; i++)

+			x->outlet[x->out[i].nbr_outlet] += x->out[i].mass1->posX * x->out[i].influence;

+			// compute output vector value		

+

+		for (i=0; i<x->nb_outlet; i++)

+		// send vector value to the vector pointer

+		{

+			*out[i]++ = x->outlet[i];

+			x->outlet[i] = 0;

+		}

+	}

+	return(w+3);

+}

+

+void pmpd_tilde_dsp(t_pmpd_tilde *x, t_signal **sp)

+{

+	int i;

+

+	for (i=0; i<x->nb_inlet; i++)

+		x->inlet_vector[i] = sp[i]->s_vec;

+

+	for (i=0; i<x->nb_outlet; i++)

+		x->outlet_vector[i] = sp[i+x->nb_inlet]->s_vec;

+

+	dsp_add(pmpd_tilde_perform, 2, x, sp[0]->s_n);

+//	post("%p, %p, %p", sp, sp2[2], sp[2]->s_vec);

+}

+

+void pmpd_tilde_bang(t_pmpd_tilde *x)

+{

+// add a unity force to all masses

+	int i;

+	for (i=0;i < x->nb_mass; i++)

+		x->mass[i].forceX += 1;

+}

+

+void pmpd_tilde_float(t_pmpd_tilde *x, t_float force)

+{

+// add a unity force to all masses

+	int i;

+	for (i=0;i < x->nb_mass; i++)

+		x->mass[i].forceX += force;

+}

+

+void pmpd_tilde_forceX(t_pmpd_tilde *x, t_float nbr_mass, t_float force)

+{

+// add a force to a specific mass

+	nbr_mass = max(0, min( x->nb_mass, (int)nbr_mass));

+	x->mass[(int)nbr_mass].forceX += force;

+}

+

+void pmpd_tilde_posX(t_pmpd_tilde *x, t_float nbr_mass, t_float posX)

+{

+// displace a mass to a certain position

+	nbr_mass = max(0, min( x->nb_mass, (int)nbr_mass));

+	x->mass[(int)nbr_mass].posX = posX;

+}

+

+

+void pmpd_tilde_mass(t_pmpd_tilde *x, t_float Id, t_float M, t_float posX)

+// add a mass

+// Id, invM speedX posX forceX

+{

+	if (M==0) M=1;

+	x->mass[x->nb_mass].Id = (int)Id;

+	x->mass[x->nb_mass].invM = 1/M;

+	x->mass[x->nb_mass].speedX = 0;

+	x->mass[x->nb_mass].posX = posX;

+	x->mass[x->nb_mass].forceX = 0;

+

+	x->nb_mass++ ;

+	x->nb_mass = min ( nb_max_mass -1, x->nb_mass );

+}

+

+void pmpd_tilde_link(t_pmpd_tilde *x, t_float Id, t_float mass_1, t_float mass_2, t_float K1, t_float D1)

+// add a link

+// Id, *mass1, *mass2, Ke, K1, D1, K2, D2;

+{

+

+	x->link[x->nb_link].Id = (int)Id;

+	x->link[x->nb_link].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)mass_1))];

+	x->link[x->nb_link].mass2 = &x->mass[max(0, min ( x->nb_mass, (int)mass_2))];

+	x->link[x->nb_link].K1 = K1;

+	x->link[x->nb_link].D1 = D1;

+

+	x->nb_link++ ;

+	x->nb_link = min ( nb_max_link -1, x->nb_link );

+}

+

+

+void pmpd_tilde_out(t_pmpd_tilde *x, t_float Id, t_float nb_outlet, t_float mass_1, t_float influence)

+// add an output point

+// Id, nbr_outlet, *mass1, influence;

+{

+	x->out[x->nb_out].Id = (int)Id;

+	x->out[x->nb_out].nbr_outlet = max(0, min( x->nb_outlet,(int)nb_outlet));

+	x->out[x->nb_out].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)mass_1))];

+	x->out[x->nb_out].influence = influence;

+

+	x->nb_out++ ;

+	x->nb_out = min ( nb_max_out - 1, x->nb_out );

+}

+

+void pmpd_tilde_in(t_pmpd_tilde *x, t_float Id, t_float nb_inlet, t_float mass_1, t_float influence)

+//add an input point

+// Id, nbr_inlet, *mass1, influence;

+{

+	x->in[x->nb_in].Id = (int)Id;

+	x->in[x->nb_in].nbr_inlet = max(0, min( x->nb_inlet,(int)nb_inlet));

+	x->in[x->nb_in].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)mass_1))];

+	x->in[x->nb_in].influence = influence;

+

+	x->nb_in++;

+	x->nb_in = min ( nb_max_in - 1, x->nb_in );

+}

+

+void pmpd_tilde_reset(t_pmpd_tilde *x)

+{

+	x->nb_link = 0;

+	x->nb_mass = 1;

+	x->nb_out= 0;

+	x->nb_in= 0;

+	x->mass[x->nb_mass].posX = 1;

+// ajouter le reset des paramettress de la masse

+}

+

+void *pmpd_tilde_new(t_symbol *s, int argc, t_atom *argv)

+{

+	int i;

+

+	t_pmpd_tilde *x = (t_pmpd_tilde *)pd_new(pmpd_tilde_class);

+

+	pmpd_tilde_reset(x);

+	makeseed_pmpd_tilde();

+	

+	x->nb_outlet= (int)atom_getfloatarg(1, argc, argv);

+	x->nb_outlet= max(1, min(nb_max_outlet, x->nb_outlet) );

+	for(i=0; i<x->nb_outlet; i++)

+		outlet_new(&x->x_obj, &s_signal);

+

+	x->nb_inlet = (int)atom_getfloatarg(0, argc, argv);

+	x->nb_inlet= max(1, min(nb_max_inlet, x->nb_inlet) );

+	for(i=0; i<x->nb_inlet-1; i++)

+		inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);

+

+	x->nb_loop = max (1, (int)atom_getfloatarg(2, argc, argv) );

+	x->loop = 0 ;

+

+	

+	return (void *)x;

+}

+

+void pmpd_tilde_setup(void) {

+	pmpd_tilde_class = class_new(gensym("pmpd~"), (t_newmethod)pmpd_tilde_new, 0, sizeof(t_pmpd_tilde), CLASS_DEFAULT, A_GIMME, 0);

+

+	CLASS_MAINSIGNALIN(pmpd_tilde_class, t_pmpd_tilde, f);

+

+	class_addbang(pmpd_tilde_class, pmpd_tilde_bang);

+	class_addfloat(pmpd_tilde_class, (t_method)pmpd_tilde_float);

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_mass,		gensym("mass"),		A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_link,		gensym("link"),		A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_out,			gensym("out"),		A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_in,			gensym("in"),		A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_posX,		gensym("posX"),      A_DEFFLOAT, A_DEFFLOAT, 0);

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_forceX,		gensym("forceX"),    A_DEFFLOAT, A_DEFFLOAT, 0);

+

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_reset,		gensym("reset"), 0);

+	class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_dsp,			gensym("dsp"), 0);

+}