/* 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 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_le ------------------------------ */

typedef struct _tab_le
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_le;

static t_class *tab_le_class;

static void tab_le_src1(t_tab_le *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_le_src2(t_tab_le *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_le_dst(t_tab_le *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_le_bang(t_tab_le *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] <= vec_src2[i])
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_le_list(t_tab_le *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] <= vec_src2[i])
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_le-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_compare");
	}
}

static void tab_le_free(t_tab_le *x)
{
}

static void *tab_le_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_le *x = (t_tab_le *)pd_new(tab_le_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_le-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_le_setup(void)
{
	tab_le_class = class_new(gensym("tab_le"), (t_newmethod)tab_le_new, (t_method)tab_le_free,
					 sizeof(t_tab_le), 0, A_GIMME, 0);
	class_addbang(tab_le_class, (t_method)tab_le_bang);
	class_addlist(tab_le_class, (t_method)tab_le_list);
	class_addmethod(tab_le_class, (t_method)tab_le_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_le_class, (t_method)tab_le_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_le_class, (t_method)tab_le_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_le_class, gensym("iemhelp2/tab_le-help"));
}