From 6d48d426a49662b81599aa20ad388b835fbc39e0 Mon Sep 17 00:00:00 2001 From: Cyrille Henry Date: Thu, 28 Oct 2004 17:45:36 +0000 Subject: pmpd version 0.06 test version! svn path=/trunk/externals/pmpd/; revision=2185 --- src/pmpd~.c | 323 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 323 insertions(+) create mode 100755 src/pmpd~.c (limited to 'src/pmpd~.c') 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; inb_inlet; i++) + // TODO : ameliorer la copie du tableau a l'initialisation + in[i]= x->inlet_vector[i]; + + for (i=0; inb_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; inb_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; inb_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; inb_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; inb_inlet; i++) + // increase pointer to inlet vectors value + in[i]++; + + for (i=0; inb_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; inb_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; inb_inlet; i++) + x->inlet_vector[i] = sp[i]->s_vec; + + for (i=0; inb_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; inb_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; inb_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); +} -- cgit v1.2.1