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/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
iem_spec2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
#include "m_pd.h"
#include "iemlib.h"
/* ------------------------ spec2_sum_tilde~ ------------------------- */
static t_class *spec2_sum_tilde_class;
typedef struct _spec2_sum_tilde
{
t_object x_obj;
t_float x_msi;
} t_spec2_sum_tilde;
static t_int *spec2_sum_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_float sum = 0.0f;
int n, hn;
n = hn = w[3];
sum = *in++;
while(n--)
sum += (*in++)*2.0f;
while(hn--)
*out++ = sum;
*out++ = sum;
return(w+4);
}
static t_int *spec2_sum_tilde_perf16(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_float sum=0.0f;
int n, hn;
n = hn = w[3];
sum = *in++;
while(n)
{
sum += 2.0f*in[0];
sum += 2.0f*in[1];
sum += 2.0f*in[2];
sum += 2.0f*in[3];
sum += 2.0f*in[4];
sum += 2.0f*in[5];
sum += 2.0f*in[6];
sum += 2.0f*in[7];
sum += 2.0f*in[8];
sum += 2.0f*in[9];
sum += 2.0f*in[10];
sum += 2.0f*in[11];
sum += 2.0f*in[12];
sum += 2.0f*in[13];
sum += 2.0f*in[14];
sum += 2.0f*in[15];
in += 16;
n -= 16;
}
while(hn)
{
out[0] = sum;
out[1] = sum;
out[2] = sum;
out[3] = sum;
out[4] = sum;
out[5] = sum;
out[6] = sum;
out[7] = sum;
out[8] = sum;
out[9] = sum;
out[10] = sum;
out[11] = sum;
out[12] = sum;
out[13] = sum;
out[14] = sum;
out[15] = sum;
out += 16;
hn -= 16;
}
out[0] = sum;
return(w+4);
}
static void spec2_sum_tilde_dsp(t_spec2_sum_tilde *x, t_signal **sp)
{
int n = (sp[0]->s_n)/2;
if(n&15)
dsp_add(spec2_sum_tilde_perform, 3, sp[0]->s_vec, sp[0]->s_vec, n);
else
dsp_add(spec2_sum_tilde_perf16, 3, sp[0]->s_vec, sp[0]->s_vec, n);
}
static void *spec2_sum_tilde_new(void)
{
t_spec2_sum_tilde *x = (t_spec2_sum_tilde *)pd_new(spec2_sum_tilde_class);
outlet_new(&x->x_obj, &s_signal);
x->x_msi = 0.0f;
return (x);
}
void spec2_sum_tilde_setup(void)
{
spec2_sum_tilde_class = class_new(gensym("spec2_sum~"), (t_newmethod)spec2_sum_tilde_new,
0, sizeof(t_spec2_sum_tilde), 0, 0);
CLASS_MAINSIGNALIN(spec2_sum_tilde_class, t_spec2_sum_tilde, x_msi);
class_addmethod(spec2_sum_tilde_class, (t_method)spec2_sum_tilde_dsp, gensym("dsp"), 0);
class_sethelpsymbol(spec2_sum_tilde_class, gensym("iemhelp2/spec2_sum~-help"));
}
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