/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2003 */

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

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

/* -------------------------- iem_i_route ------------------------------ */
/* routes a list beginning with a float to an outlet, which are defined by
   first- , last- index and offset-index */

static t_class *iem_i_route_class;

typedef struct _iem_i_route
{
	t_object	x_obj;
	int				x_first_element;
	int				x_last_element;
	t_outlet	**x_out;
} t_iem_i_route;

static void iem_i_route_list(t_iem_i_route *x, t_symbol *sel, int argc, t_atom *argv)
{
	t_outlet **out;
	int first, last, i;

	if(!argc)
		return;
	i = (int)atom_getintarg(0, argc, argv);
	first = x->x_first_element;
	last = x->x_last_element;
	out = x->x_out;
	if((i >= first)&&(i <= last))
	{
		out += i - first;
		if(argc >= 3)
		{
			if(IS_A_FLOAT(argv,1))
				outlet_list(*out, &s_list, argc-1, argv+1);
			else if(IS_A_SYMBOL(argv,1))
				outlet_anything(*out, atom_getsymbolarg(1, argc, argv), argc-2, argv+2);
		}
		else if(argc >= 2)
		{
			if(IS_A_FLOAT(argv,1))
				outlet_float(*out, (float)atom_getfloatarg(1, argc, argv));
			else if(IS_A_SYMBOL(argv,1))
				outlet_anything(*out, atom_getsymbolarg(1, argc, argv), 0, argv+2);
		}
		else
		outlet_bang(*out);
	}
	else
	{
		out += last - first + 1;
	outlet_list(*out, &s_list, argc, argv);
	}
}

static void iem_i_route_free(t_iem_i_route *x)
{
	freebytes(x->x_out, (x->x_last_element-x->x_first_element+2) * sizeof(t_outlet *));
}

static void *iem_i_route_new(t_symbol *s, int argc, t_atom *argv)
{
	int n, i;
	t_outlet **out;
	t_iem_i_route *x = (t_iem_i_route *)pd_new(iem_i_route_class);

	if((argc >= 2)&&IS_A_FLOAT(argv,0)&&IS_A_FLOAT(argv,1))
	{
		x->x_first_element = (int)atom_getintarg(0, argc, argv);
		x->x_last_element = (int)atom_getintarg(1, argc, argv);
		if((argc >= 3)&&IS_A_FLOAT(argv,2))
		{
			i = (int)atom_getintarg(2, argc, argv);
			x->x_first_element += i;
			x->x_last_element += i;
		}
		x->x_out = (t_outlet **)getbytes((x->x_last_element-x->x_first_element+2) * sizeof(t_outlet *));
		n = x->x_last_element - x->x_first_element + 2;
		for(i=0, out=x->x_out; i<n; i++, out++)
			*out = outlet_new(&x->x_obj, &s_list);
		return (x);
	}
	else
	{
		post("iem_i_route-ERROR: needs 3 floats!!");
		return(0);
	}
}

void iem_i_route_setup(void)
{
	iem_i_route_class = class_new(gensym("iem_i_route"), (t_newmethod)iem_i_route_new,
				(t_method)iem_i_route_free, sizeof(t_iem_i_route), 0, A_GIMME, 0);
	class_addcreator((t_newmethod)iem_i_route_new, gensym("iiroute"), A_GIMME, 0);
	class_addlist(iem_i_route_class, iem_i_route_list);
	class_sethelpsymbol(iem_i_route_class, gensym("iemhelp/help-iem_i_route"));
}