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#include "ext13.h"
#include "m_pd.h"
#include <sys/stat.h>
#include <stdio.h>
#include <string.h>
#ifndef NT
#include <unistd.h>
#endif
#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
/* -------------------------- mandelbrot ------------------------------ */
static t_class *mandelbrot_class;
typedef struct _mandelbrot
{
t_object x_obj;
t_float cr;
t_float ci;
t_float k;
t_float result;
} t_mandelbrot;
static void *mandelbrot_new(t_floatarg f)
{
t_mandelbrot *x = (t_mandelbrot *)pd_new(mandelbrot_class);
x->k=f;
if (! x->k) {x->k=100;}
floatinlet_new(&x->x_obj, &x->ci);
floatinlet_new(&x->x_obj, &x->k);
outlet_new(&x->x_obj,0);
return (x);
}
static void mandelbrot_bang(t_mandelbrot *x)
{
outlet_float(x->x_obj.ob_outlet,x->result);
}
static void mandelbrot_float(t_mandelbrot *x, t_float f)
{
int i = -2;
t_float zr = 0;
t_float zi = 0;
t_float z2r = 0;
t_float z2i = 0;
x->cr = f;
if ((x->cr < 0 ) && ( x->cr > -0.5) && (x->ci * x->ci < 0.25)){
x->result = x->k;
}else{
while (((z2r + z2i) < 4 ) && (++i < x->k )) {
z2r = zr * zr;
z2i = zi * zi;
zi = 2 * zr * zi + x->ci;
zr = z2r - z2i + x->cr;
}
x->result = i;
}
outlet_float(x->x_obj.ob_outlet,x->result);
}
void mandelbrot_setup(void)
{
mandelbrot_class = class_new(gensym("mandelbrot"), (t_newmethod)mandelbrot_new, 0,
sizeof(t_mandelbrot), 0, A_DEFFLOAT, 0);
class_addbang(mandelbrot_class, mandelbrot_bang);
class_addfloat(mandelbrot_class, mandelbrot_float);
/* class_addfloat(mandelbrot_class; mandelbrot_float);*/
}
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