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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_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2009 */
#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
/* -------------------------- tab_carth2polar ------------------------------ */
/* x_beg_mem_dst_mag[i] = sqrt(x_beg_mem_src_re[i]*x_beg_mem_src_re[i] + x_beg_mem_src_im[i]*x_beg_mem_src_im[i]) */
/* x_beg_mem_dst_arg[i] = atan2(x_beg_mem_src_im[i], x_beg_mem_src_re[i]) */
typedef struct _tab_carth2polar
{
t_object x_obj;
int x_size_src_re;
int x_size_dst_mag;
int x_size_src_im;
int x_size_dst_arg;
int x_offset_src_re;
int x_offset_dst_mag;
int x_offset_src_im;
int x_offset_dst_arg;
iemarray_t *x_beg_mem_src_re;
iemarray_t *x_beg_mem_dst_mag;
iemarray_t *x_beg_mem_src_im;
iemarray_t *x_beg_mem_dst_arg;
t_symbol *x_sym_src_re;
t_symbol *x_sym_dst_mag;
t_symbol *x_sym_src_im;
t_symbol *x_sym_dst_arg;
} t_tab_carth2polar;
static t_class *tab_carth2polar_class;
static void tab_carth2polar_src_re(t_tab_carth2polar *x, t_symbol *s)
{
x->x_sym_src_re = s;
}
static void tab_carth2polar_src_im(t_tab_carth2polar *x, t_symbol *s)
{
x->x_sym_src_im = s;
}
static void tab_carth2polar_dst_mag(t_tab_carth2polar *x, t_symbol *s)
{
x->x_sym_dst_mag = s;
}
static void tab_carth2polar_dst_arg(t_tab_carth2polar *x, t_symbol *s)
{
x->x_sym_dst_arg = s;
}
static void tab_carth2polar_bang(t_tab_carth2polar *x)
{
int i, n;
int ok_src_re, ok_dst_mag;
int ok_src_im, ok_dst_arg;
iemarray_t *vec_src_re, *vec_dst_mag;
iemarray_t *vec_src_im, *vec_dst_arg;
ok_src_re = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, 0);
ok_dst_mag = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_dst_mag, &x->x_beg_mem_dst_mag, &x->x_size_dst_mag, 0);
ok_src_im = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, 0);
ok_dst_arg = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_dst_arg, &x->x_beg_mem_dst_arg, &x->x_size_dst_arg, 0);
if(ok_src_re && ok_dst_mag && ok_src_im && ok_dst_arg)
{
if(x->x_size_src_re < x->x_size_dst_mag)
n = x->x_size_src_re;
else
n = x->x_size_dst_mag;
if(x->x_size_src_im < n)
n = x->x_size_src_im;
if(x->x_size_dst_arg < n)
n = x->x_size_dst_arg;
vec_src_re = x->x_beg_mem_src_re;
vec_dst_mag = x->x_beg_mem_dst_mag;
vec_src_im = x->x_beg_mem_src_im;
vec_dst_arg = x->x_beg_mem_dst_arg;
if(n)
{
t_garray *a;
t_float rcp_two_pi=0.125/atan(1.0);
for(i=0; i<n; i++)
{
t_float re, im, mag, arg;
re = iemarray_getfloat(vec_src_re, i);
im = iemarray_getfloat(vec_src_im, i);
mag = sqrt(re*re + im*im);
arg = atan2(im, re) * rcp_two_pi;
iemarray_setfloat(vec_dst_mag, i, mag);
iemarray_setfloat(vec_dst_arg, i, arg);
}
outlet_bang(x->x_obj.ob_outlet);
a = (t_garray *)pd_findbyclass(x->x_sym_dst_mag, garray_class);
garray_redraw(a);
a = (t_garray *)pd_findbyclass(x->x_sym_dst_arg, garray_class);
garray_redraw(a);
}
}
}
static void tab_carth2polar_list(t_tab_carth2polar *x, t_symbol *s, int argc, t_atom *argv)
{
int i, n;
int beg_src_re, beg_dst_mag;
int beg_src_im, beg_dst_arg;
int ok_src_re, ok_dst_mag;
int ok_src_im, ok_dst_arg;
iemarray_t *vec_src_re, *vec_dst_mag;
iemarray_t *vec_src_im, *vec_dst_arg;
if((argc >= 5) &&
IS_A_FLOAT(argv,0) &&
IS_A_FLOAT(argv,1) &&
IS_A_FLOAT(argv,2) &&
IS_A_FLOAT(argv,3) &&
IS_A_FLOAT(argv,4))
{
beg_src_re = (int)atom_getintarg(0, argc, argv);
beg_src_im = (int)atom_getintarg(1, argc, argv);
beg_dst_mag = (int)atom_getintarg(2, argc, argv);
beg_dst_arg = (int)atom_getintarg(3, argc, argv);
n = (int)atom_getintarg(4, argc, argv);
if(beg_src_re < 0)
beg_src_re = 0;
if(beg_dst_mag < 0)
beg_dst_mag = 0;
if(beg_src_im < 0)
beg_src_im = 0;
if(beg_dst_arg < 0)
beg_dst_arg = 0;
if(n < 0)
n = 0;
ok_src_re = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, beg_src_re+n);
ok_dst_mag = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_dst_mag, &x->x_beg_mem_dst_mag, &x->x_size_dst_mag, beg_dst_mag+n);
ok_src_im = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, beg_src_im+n);
ok_dst_arg = iem_tab_check_arrays(gensym("tab_carth2polar"), x->x_sym_dst_arg, &x->x_beg_mem_dst_arg, &x->x_size_dst_arg, beg_dst_arg+n);
if(ok_src_re && ok_dst_mag && ok_src_im && ok_dst_arg)
{
vec_src_re = x->x_beg_mem_src_re + beg_src_re;
vec_dst_mag = x->x_beg_mem_dst_mag + beg_dst_mag;
vec_src_im = x->x_beg_mem_src_im + beg_src_im;
vec_dst_arg = x->x_beg_mem_dst_arg + beg_dst_arg;
if(n)
{
t_garray *a;
t_float rcp_two_pi=0.125/atan(1.0);
for(i=0; i<n; i++)
{
t_float re, im, mag, arg;
re = iemarray_getfloat(vec_src_re, i);
im = iemarray_getfloat(vec_src_im, i);
mag = sqrt(re*re + im*im);
arg = atan2(im, re) * rcp_two_pi;
iemarray_setfloat(vec_dst_mag, i, mag);
iemarray_setfloat(vec_dst_arg, i, arg);
}
outlet_bang(x->x_obj.ob_outlet);
a = (t_garray *)pd_findbyclass(x->x_sym_dst_mag, garray_class);
garray_redraw(a);
a = (t_garray *)pd_findbyclass(x->x_sym_dst_arg, garray_class);
garray_redraw(a);
}
}
}
else
{
post("tab_carth2polar-ERROR: list need 5 float arguments:");
post(" source_real_offset + source_imag_offset + destination_magnitude_offset + destination_phase_argument_offset + number_of_samples_to_convert");
}
}
static void tab_carth2polar_free(t_tab_carth2polar *x)
{
}
static void *tab_carth2polar_new(t_symbol *s, int argc, t_atom *argv)
{
t_tab_carth2polar *x = (t_tab_carth2polar *)pd_new(tab_carth2polar_class);
t_symbol *src_re, *dst_mag, *src_im, *dst_arg;
if((argc >= 4) &&
IS_A_SYMBOL(argv,0) &&
IS_A_SYMBOL(argv,1) &&
IS_A_SYMBOL(argv,2) &&
IS_A_SYMBOL(argv,3))
{
src_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
src_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
dst_mag = (t_symbol *)atom_getsymbolarg(2, argc, argv);
dst_arg = (t_symbol *)atom_getsymbolarg(3, argc, argv);
}
else
{
post("tab_carth2polar-ERROR: need 4 symbols arguments:");
post(" source_real_array_name + source_imag_array_name + destination_magnitude_array_name + destination_phase_argument_array_name");
return(0);
}
x->x_sym_src_re = src_re;
x->x_sym_src_im = src_im;
x->x_sym_dst_mag = dst_mag;
x->x_sym_dst_arg = dst_arg;
outlet_new(&x->x_obj, &s_bang);
return(x);
}
void tab_carth2polar_setup(void)
{
tab_carth2polar_class = class_new(gensym("tab_carth2polar"), (t_newmethod)tab_carth2polar_new, (t_method)tab_carth2polar_free,
sizeof(t_tab_carth2polar), 0, A_GIMME, 0);
class_addbang(tab_carth2polar_class, (t_method)tab_carth2polar_bang);
class_addlist(tab_carth2polar_class, (t_method)tab_carth2polar_list);
class_addmethod(tab_carth2polar_class, (t_method)tab_carth2polar_src_re, gensym("src_re"), A_DEFSYMBOL, 0);
class_addmethod(tab_carth2polar_class, (t_method)tab_carth2polar_src_im, gensym("src_im"), A_DEFSYMBOL, 0);
class_addmethod(tab_carth2polar_class, (t_method)tab_carth2polar_src_re, gensym("src1_re"), A_DEFSYMBOL, 0);
class_addmethod(tab_carth2polar_class, (t_method)tab_carth2polar_src_im, gensym("src1_im"), A_DEFSYMBOL, 0);
class_addmethod(tab_carth2polar_class, (t_method)tab_carth2polar_dst_mag, gensym("dst_mag"), A_DEFSYMBOL, 0);
class_addmethod(tab_carth2polar_class, (t_method)tab_carth2polar_dst_arg, gensym("dst_arg"), A_DEFSYMBOL, 0);
}
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