diff options
Diffstat (limited to 'nusmuk-utils/tab_max.c')
| -rw-r--r-- | nusmuk-utils/tab_max.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/nusmuk-utils/tab_max.c b/nusmuk-utils/tab_max.c new file mode 100644 index 0000000..5789261 --- /dev/null +++ b/nusmuk-utils/tab_max.c @@ -0,0 +1,117 @@ +#include "m_pd.h" + +#define MIN(a,b) (((a)<(b))?(a):(b)) +#define MAX(a,b) (((a)>(b))?(a):(b)) + +static t_class *tab_max_class; + +typedef struct _tab_max { + t_object x_obj; + t_symbol *x_arrayname_src1; + t_symbol *x_arrayname_src2; + t_symbol *x_arrayname_dst; + int offset_src1, offset_src2, offset_dst, nb_max; + t_outlet *b_out; +} t_tab_max; + +void *tab_max_new(t_symbol *s_src1, t_symbol *s_src2, t_symbol *s_dst) +{ + t_tab_max *x = (t_tab_max *)pd_new(tab_max_class); + + x->x_arrayname_src1 = s_src1; + x->x_arrayname_src2 = s_src2; + x->x_arrayname_dst = s_dst; + x->offset_src1 = 0; + x->offset_src2 = 0; + x->offset_dst = 0; + + x->b_out = outlet_new(&x->x_obj, &s_bang); + + return (void *)x; +} + +void tab_max_compute(t_tab_max *x) +{ + t_garray *a_src1, *a_src2, *a_dst; + int npoints_src1, npoints_src2, npoints_dst; + t_word *vec_src1, *vec_src2, *vec_dst; + + int nb_max, i; + + if (!(a_src1 = (t_garray *)pd_findbyclass(x->x_arrayname_src1, garray_class))) + pd_error(x, "%s: no such array", x->x_arrayname_src1->s_name); + else if (!garray_getfloatwords(a_src1, &npoints_src1, &vec_src1)) + pd_error(x, "%s: bad template for tab_max", x->x_arrayname_src1->s_name); + if (!(a_src2 = (t_garray *)pd_findbyclass(x->x_arrayname_src2, garray_class))) + pd_error(x, "%s: no such array", x->x_arrayname_src2->s_name); + else if (!garray_getfloatwords(a_src2, &npoints_src2, &vec_src2)) + pd_error(x, "%s: bad template for tab_max", x->x_arrayname_src2->s_name); + else if (!(a_dst = (t_garray *)pd_findbyclass(x->x_arrayname_dst, garray_class))) + pd_error(x, "%s: no such array", x->x_arrayname_dst->s_name); + else if (!garray_getfloatwords(a_dst, &npoints_dst, &vec_dst)) + pd_error(x, "%s: bad template for tab_max", x->x_arrayname_dst->s_name); + else + { + nb_max = MIN(npoints_src1 - x->offset_src1, npoints_src2 - x->offset_src2); + nb_max = MIN(npoints_dst, nb_max); + if (x->nb_max >0) + nb_max = MIN(nb_max, x->nb_max); + post("nb_max = %d",nb_max); + + for (i=0; i<nb_max;i++) { + vec_dst[i + x->offset_dst].w_float = MAX(vec_src1[i + x->offset_src1].w_float, vec_src2[i + x->offset_src2].w_float); + } + garray_redraw(a_dst); + } + outlet_bang(x->b_out); +} + +void tab_max_bang(t_tab_max *x) +{ + x->offset_src1 = 0; + x->offset_src2 = 0; + x->offset_dst = 0; + x->nb_max = -1; + tab_max_compute(x) ; +} + +void tab_max_list(t_tab_max *x, t_symbol *s, int argc, t_atom *argv) +{ + x->offset_src1 = 0; + x->offset_src2 = 0; + x->offset_dst = 0; + x->nb_max = -1; + + if ((argc>=1) && (argv[0].a_type == A_FLOAT)) + x->offset_src1 = atom_getfloatarg(0, argc, argv); + if ((argc>=2) && (argv[1].a_type == A_FLOAT)) + x->offset_src2 = atom_getfloatarg(1, argc, argv); + if ((argc>=3) && (argv[2].a_type == A_FLOAT)) + x->offset_dst = atom_getfloatarg(2, argc, argv); + if ((argc>=4) && (argv[3].a_type == A_FLOAT)) + x->nb_max = atom_getfloatarg(3, argc, argv); + + tab_max_compute(x) ; +} + +void tab_max_src1(t_tab_max *x, t_symbol *s_src) { + x->x_arrayname_src1 = s_src; + +}void tab_max_src2(t_tab_max *x, t_symbol *s_src) { + x->x_arrayname_src2 = s_src; +} + +void tab_max_dst(t_tab_max *x, t_symbol *s_dst) { + x->x_arrayname_dst = s_dst; +} + +void tab_max_setup(void) { + tab_max_class = class_new(gensym("tab_max"), (t_newmethod)tab_max_new, + 0, sizeof(t_tab_max), CLASS_DEFAULT, A_DEFSYM, A_DEFSYM, A_DEFSYM, 0); + class_addbang(tab_max_class, tab_max_bang); + class_addlist(tab_max_class, (t_method)tab_max_list); + class_addmethod(tab_max_class, (t_method)tab_max_src1, gensym("src1"), A_DEFSYM, 0); + class_addmethod(tab_max_class, (t_method)tab_max_src2, gensym("src2"), A_DEFSYM, 0); + class_addmethod(tab_max_class, (t_method)tab_max_dst, gensym("dst"), A_DEFSYM, 0); +} + |