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/* (C) Guenter Geiger <geiger@epy.co.at> */
#include "math.h"
#include <m_pd.h>
/* ----------------------------- apply ----------------------------- */
static t_class *apply_class;
typedef double (*t_apply_onearg)(double);
typedef double (*t_apply_twoarg)(double);
static double nop(double f) {
return f;
}
typedef struct _funlist {
char* name;
t_int* fun;
int numarg;
char* desc;
} t_funlist;
#define MFUN1(x,d) {#x,(t_int*)x,1,d}
static t_funlist funlist[] =
{
MFUN1(nop,"does nothing"),
MFUN1(sin,"calculate sine"),
MFUN1(asin,"calculate arcus sine"),
MFUN1(cos,"calculate cosine"),
MFUN1(acos,"calculate arcus cosine"),
MFUN1(tan,"calculate tangent"),
MFUN1(atan,"calculate arcus tangent"),
MFUN1(sinh,""),
MFUN1(asinh,""),
MFUN1(cosh,""),
MFUN1(acosh,""),
MFUN1(tanh,""),
MFUN1(atanh,""),
MFUN1(exp,""),
MFUN1(expm1,""),
// MFUN1(exp10),
// MFUN1(pow10),
MFUN1(log,""),
MFUN1(log1p,""),
MFUN1(log10,""),
// MFUN1(log2),
MFUN1(sqrt,""),
MFUN1(cbrt,""),
MFUN1(rint,""),
// MFUN1(round),
MFUN1(ceil,""),
MFUN1(floor,""),
// MFUN1(trunc),
MFUN1(erf,""),
MFUN1(erfc,""),
MFUN1(gamma,""),
MFUN1(lgamma,""),
// MFUN1(tgamma),
MFUN1(j0,""),
MFUN1(j1,""),
MFUN1(y0,""),
MFUN1(j1,"")
};
typedef struct _apply
{
t_object x_obj;
t_int* x_fun;
} t_apply;
static void *apply_new(t_symbol *s, int argc, t_atom *argv)
{
t_symbol* fname;
int i;
int numfun = sizeof(funlist)/sizeof(t_funlist);
t_apply *x = (t_apply *)pd_new(apply_class);
outlet_new(&x->x_obj, &s_signal);
x->x_fun = (t_int*)nop;
if (argc < 1) {
post("nop operation requested");
}
else {
if (argv[0].a_type != A_SYMBOL)
goto nofun;
fname = atom_getsymbol(argv);
for (i=0;i<numfun;i++)
if (!strcmp(fname->s_name,funlist[i].name))
x->x_fun = funlist[i].fun;
}
return (x);
nofun:
post("apply first argument has to be a function");
return (x);
}
static void apply_what(t_apply* x)
{
int i;
int numfun = sizeof(funlist)/sizeof(t_funlist);
for (i=0;i<numfun;i++)
post("function: %s: %s",funlist[i].name,funlist[i].desc);
}
t_int *apply_perform(t_int *w)
{
t_apply* x = (t_apply*)(w[1]);
t_float *in1 = (t_float *)(w[2]);
t_float *out = (t_float *)(w[3]);
int n = (int)(w[4]);
while (n--) *out++ = (t_float) ((t_apply_onearg)x->x_fun)(*in1++);
return (w+5);
}
void dsp_add_apply(t_apply* x,t_sample *in1, t_sample *out, int n)
{
dsp_add(apply_perform, 4,x, in1, out, n);
}
static void apply_dsp(t_apply *x, t_signal **sp)
{
dsp_add_apply(x,sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
}
void apply_tilde_setup(void)
{
apply_class = class_new(gensym("apply~"), (t_newmethod)apply_new, 0,
sizeof(t_apply), 0, A_GIMME, 0);
class_addmethod(apply_class, nullfn, gensym("signal"), 0);
class_addmethod(apply_class, (t_method)apply_dsp, gensym("dsp"), 0);
class_addmethod(apply_class, (t_method)apply_what, gensym("what"), 0);
}
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