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/* Copyright (c) 2002-2003 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
#include <math.h>
#include "m_pd.h"
#include "sickle/sic.h"
#if defined(NT) || defined(MACOSX)
/* cf pd/src/x_arithmetic.c */
#define powf pow
#endif
typedef t_sic t_pow;
static t_class *pow_class;
static t_int *pow_perform(t_int *w)
{
int nblock = (int)(w[1]);
t_float *in1 = (t_float *)(w[2]);
t_float *in2 = (t_float *)(w[3]);
t_float *out = (t_float *)(w[4]);
while (nblock--)
{
float f1 = *in1++;
float f2 = *in2++;
/* CHECKED arg order, no protection against NaNs (negative base),
under-, and overflows */
*out++ = powf(f2, f1);
}
return (w + 5);
}
static void pow_dsp(t_pow *x, t_signal **sp)
{
dsp_add(pow_perform, 4, sp[0]->s_n,
sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec);
}
static void *pow_new(t_floatarg f)
{
t_pow *x = (t_pow *)pd_new(pow_class);
sic_newinlet((t_sic *)x, f); /* CHECKED default 0 */
outlet_new((t_object *)x, &s_signal);
return (x);
}
void pow_tilde_setup(void)
{
pow_class = class_new(gensym("pow~"),
(t_newmethod)pow_new, 0,
sizeof(t_pow), 0, A_DEFFLOAT, 0);
sic_setup(pow_class, pow_dsp, SIC_FLOATTOSIGNAL);
}
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