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//////////////////////////////////////////////////////////////////////
// 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"
#include "math.h"
#define max(a,b) ( ((a) > (b)) ? (a) : (b) )
#define min(a,b) ( ((a) < (b)) ? (a) : (b) )
#define nb_max_link 10000
#define nb_max_mass 10000
#define nb_max_in 1000
#define nb_max_out 1000
#define nb_max_outlet 20
#define nb_max_inlet 20 // hard-coded on the methods definition
static t_class *pmpd_tilde_class;
typedef struct _mass {
t_float invM;
t_float speedX;
t_float posX;
t_float forceX;
} foo;
typedef struct _link {
struct _mass *mass1;
struct _mass *mass2;
t_float Ke, K1, D1;
} foo1 ;
typedef struct _NLlink {
struct _mass *mass1;
struct _mass *mass2;
t_float Ke, K1, D1,L0,Lmin, Lmax, Pow;
} foo1b ;
typedef struct _inPos {
// in en position
t_int nbr_inlet;
struct _mass *mass1;
t_float influence;
} foo2;
typedef struct _inForce {
// in en force
t_int nbr_inlet;
struct _mass *mass1;
t_float influence;
} foo3;
typedef struct _outPos {
// out en position
t_int nbr_outlet;
struct _mass *mass1;
t_float influence;
} foo4;
typedef struct _outSpeed {
// out en vitesse
t_int nbr_outlet;
struct _mass *mass1;
t_float influence;
} foo5;
typedef struct _pmpd_tilde {
t_object x_obj;
struct _link link[nb_max_link];
struct _NLlink NLlink[nb_max_link];
struct _mass mass[nb_max_mass];
struct _inPos inPos[nb_max_in];
struct _inForce inForce[nb_max_in];
struct _outPos outPos[nb_max_out];
struct _outSpeed outSpeed[nb_max_out];
t_float outlet[nb_max_outlet];
t_sample *outlet_vector[nb_max_outlet];
t_sample *inlet_vector[nb_max_inlet];
int nb_link, nb_NLlink, nb_mass, nb_inlet, nb_outlet, nb_inPos, nb_inForce, nb_outPos, nb_outSpeed;
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,L;
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++)
in[i]= x->inlet_vector[i];
for (i=0; i<x->nb_outlet; i++)
out[i]= x->outlet_vector[i];
while (n--)
{
x->loop = 0;
while (x->loop++ < x->nb_loop)
{
for (i=0; i<x->nb_inPos; i++)
// get inlet value and make it a position to the specified mass
x->inPos[i].mass1->posX = x->inPos[i].influence * *in[x->inPos[i].nbr_inlet];
for (i=0; i<x->nb_inForce; i++)
// get inlet value and make it a force to the specified mass
x->inForce[i].mass1->forceX += x->inForce[i].influence * *in[x->inForce[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=0; i<x->nb_NLlink; i++)
// compute forces generated by NLlinks (spring / dashpot)
{
L=x->NLlink[i].mass1->posX - x->NLlink[i].mass2->posX - x->NLlink[i].L0;
if (L<x->NLlink[i].Lmax & L>x->NLlink[i].Lmin)
{
F = x->NLlink[i].K1 * pow(fabs(L) ,x->NLlink[i].Pow) ;
if (L < 0) F *= -1;
// spring
F += x->NLlink[i].D1 * ( x->NLlink[i].mass1->speedX - x->NLlink[i].mass2->speedX) ;
// dashpot
x->NLlink[i].mass1->forceX -= F;
x->NLlink[i].mass2->forceX += F;
}
}
for (i=1; i<x->nb_mass; i++)
{
// compute new masses position
// a mass does not move if M=0 (i.e : invM = 0)
x->mass[i].speedX += x->mass[i].forceX * x->mass[i].invM;
x->mass[i].forceX = 0;
x->mass[i].forceX = random_bang_pmpd_tilde(x) * 1e-25;
// only used for denormal problem
// -ffast-math -O6 does not solve the problem
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_outPos; i++)
x->outlet[x->outPos[i].nbr_outlet] += x->outPos[i].mass1->posX * x->outPos[i].influence;
// compute output vector value
for (i=0; i<x->nb_outSpeed; i++)
x->outlet[x->outSpeed[i].nbr_outlet] += x->outSpeed[i].mass1->speedX * x->outSpeed[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);
}
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 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)
{
// move 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 M, t_float posX)
// add a mass
//invM speedX posX force
{
if (M<=0)
{
M = 0;
x->mass[x->nb_mass].invM = 0;
}
else
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++ ;
if (x->nb_mass == nb_max_mass) error("to many mass");
x->nb_mass = min ( nb_max_mass -1, x->nb_mass );
}
void pmpd_tilde_link(t_pmpd_tilde *x, t_float mass_1, t_float mass_2, t_float K1, t_float D1)
// add a link
// *mass1, *mass2, K1, D1;
{
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++ ;
if (x->nb_link == nb_max_link) error("to many link");
x->nb_link = min ( nb_max_link -1, x->nb_link );
}
void pmpd_tilde_NLlink(t_pmpd_tilde *x, t_symbol *s, int argc, t_atom *argv)
// t_float mass_1, t_float mass_2, t_float K1, t_float D1, t_float Pow, t_float Lmin, t_float Lmax, t_float L0
// add a NLlink
{
if (argc == 8)
{
x->NLlink[x->nb_NLlink].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)atom_getfloatarg(0, argc, argv)))];
x->NLlink[x->nb_NLlink].mass2 = &x->mass[max(0, min ( x->nb_mass, (int)atom_getfloatarg(1, argc, argv)))];
x->NLlink[x->nb_NLlink].K1 = atom_getfloatarg(2, argc, argv);
x->NLlink[x->nb_NLlink].D1 = atom_getfloatarg(3, argc, argv);
x->NLlink[x->nb_NLlink].Pow = atom_getfloatarg(4, argc, argv);
x->NLlink[x->nb_NLlink].L0 = atom_getfloatarg(5, argc, argv);
x->NLlink[x->nb_NLlink].Lmin = atom_getfloatarg(6, argc, argv);
x->NLlink[x->nb_NLlink].Lmax = atom_getfloatarg(7, argc, argv);
x->nb_NLlink++ ;
if (x->nb_NLlink == nb_max_link) error("to many NLlink");
x->nb_NLlink = min ( nb_max_link -1, x->nb_NLlink );
}
else
error("wrong argument number for NLlink");
}
void pmpd_tilde_inPos(t_pmpd_tilde *x, t_float nb_inlet, t_float mass_1, t_float influence)
//add an input point
// nbr_inlet, *mass1, influence;
{
x->inPos[x->nb_inPos].nbr_inlet = max(0, min( x->nb_inlet,(int)nb_inlet));
x->inPos[x->nb_inPos].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)mass_1))];
x->inPos[x->nb_inPos].influence = influence;
x->nb_inPos++;
if (x->nb_inPos == nb_max_in) error("to many inPos");
x->nb_inPos = min ( nb_max_in - 1, x->nb_inPos );
}
void pmpd_tilde_inForce(t_pmpd_tilde *x, t_float nb_inlet, t_float mass_1, t_float influence)
//add an input point
// nbr_inlet, *mass1, influence;
{
x->inForce[x->nb_inForce].nbr_inlet = max(0, min( x->nb_inlet,(int)nb_inlet));
x->inForce[x->nb_inForce].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)mass_1))];
x->inForce[x->nb_inForce].influence = influence;
x->nb_inForce++;
if (x->nb_inForce == nb_max_in) error("to many inForce");
x->nb_inForce = min ( nb_max_in - 1, x->nb_inForce );
}
void pmpd_tilde_outPos(t_pmpd_tilde *x, t_float nb_outlet, t_float mass_1, t_float influence)
// add an output point
// nbr_outlet, *mass1, influence;
{
x->outPos[x->nb_outPos].nbr_outlet = max(0, min( x->nb_outlet,(int)nb_outlet));
x->outPos[x->nb_outPos].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)mass_1))];
x->outPos[x->nb_outPos].influence = influence;
x->nb_outPos++ ;
if (x->nb_outPos == nb_max_out) error("to many outPos");
x->nb_outPos = min ( nb_max_out - 1, x->nb_outPos );
}
void pmpd_tilde_outSpeed(t_pmpd_tilde *x, t_float nb_outlet, t_float mass_1, t_float influence)
// add an output point
// nbr_outlet, *mass1, influence;
{
x->outSpeed[x->nb_outSpeed].nbr_outlet = max(0, min( x->nb_outlet,(int)nb_outlet));
x->outSpeed[x->nb_outSpeed].mass1 = &x->mass[max(0, min ( x->nb_mass, (int)mass_1))];
x->outSpeed[x->nb_outSpeed].influence = influence;
x->nb_outSpeed++ ;
if (x->nb_outSpeed == nb_max_out) error("to many outSpeed");
x->nb_outSpeed = min ( nb_max_out - 1, x->nb_outSpeed );
}
void pmpd_tilde_reset(t_pmpd_tilde *x)
{
x->nb_link = 0;
x->nb_NLlink = 0;
x->nb_mass = 0;
x->nb_inPos= 0;
x->nb_inForce= 0;
x->nb_outSpeed= 0;
x->nb_outPos= 0;
}
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) );
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_NLlink, gensym("NLlink"), A_GIMME, 0);
class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_inPos, gensym("inPos"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_inForce, gensym("inForce"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_outPos, gensym("outPos"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addmethod(pmpd_tilde_class, (t_method)pmpd_tilde_outSpeed, gensym("outSpeed"), 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);
}
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