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/*
* Pure Data Packet module.
* Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/* This object is video packet routing utility
* Written by Yves Degoyon ( ydegoyon@free.fr )
*/
#include "pdp.h"
#include <math.h>
static char *pdp_spigot_version = "pdp_spigot: version 0.1, a video packets routing utility";
typedef struct pdp_spigot_struct
{
t_object x_obj;
t_float x_f;
t_outlet *x_outlet0;
t_outlet *x_outlet1;
t_int x_vwidth;
t_int x_vheight;
t_int x_vsize;
t_int x_packet0;
t_int x_toggle;
} t_pdp_spigot;
static void pdp_spigot_toggle(t_pdp_spigot *x, t_floatarg ftoggle )
{
if ( ( ftoggle == 0 ) || ( ftoggle == 1 ) )
{
x->x_toggle = ftoggle;
}
}
static void pdp_spigot_process_packet(t_pdp_spigot *x)
{
t_pdp *header = pdp_packet_header(x->x_packet0);
short int *data = (short int *)pdp_packet_data(x->x_packet0);
t_pdp *newheader = 0;
short int *newdata = 0;
t_int newpacket = -1, i;
x->x_vwidth = header->info.image.width;
x->x_vheight = header->info.image.height;
x->x_vsize = x->x_vwidth*x->x_vheight;
return;
}
static void pdp_spigot_process(t_pdp_spigot *x)
{
int encoding;
t_pdp *header = 0;
/* check if image data packets are compatible */
if ( (header = pdp_packet_header(x->x_packet0))
&& (PDP_IMAGE == header->type)){
/* pdp_spigot_process inputs and write into active inlet */
switch(pdp_packet_header(x->x_packet0)->info.image.encoding)
{
case PDP_IMAGE_YV12:
pdp_spigot_process_packet(x);
break;
case PDP_IMAGE_GREY:
// should write something to handle these one day
// but i don't use this mode
break;
default:
/* don't know the type, so dont pdp_spigot_process */
break;
}
}
/* propagate if valid */
if(x->x_packet0 != -1){
if ( x->x_toggle )
{
pdp_packet_pass_if_valid(x->x_outlet1, &x->x_packet0);
}
else
{
pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
}
pdp_packet_mark_unused(x->x_packet0);
x->x_packet0 = -1;
}
}
static void pdp_spigot_input_0(t_pdp_spigot *x, t_symbol *s, t_floatarg f)
{
if (s == gensym("register_rw")){
pdp_packet_mark_unused(x->x_packet0);
x->x_packet0 = pdp_packet_convert_rw((int)f, pdp_gensym("image/YCrCb/*") );
}
else if (s == gensym("process")){
pdp_spigot_process(x);
}
}
static void pdp_spigot_free(t_pdp_spigot *x)
{
pdp_packet_mark_unused(x->x_packet0);
}
t_class *pdp_spigot_class;
void *pdp_spigot_new(void)
{
int i;
t_pdp_spigot *x = (t_pdp_spigot *)pd_new(pdp_spigot_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("toggle"));
x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
x->x_outlet1 = outlet_new(&x->x_obj, &s_anything);
x->x_packet0 = -1;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_spigot_setup(void)
{
// post( pdp_spigot_version );
pdp_spigot_class = class_new(gensym("pdp_spigot"), (t_newmethod)pdp_spigot_new,
(t_method)pdp_spigot_free, sizeof(t_pdp_spigot), 0, A_NULL);
class_addmethod(pdp_spigot_class, (t_method)pdp_spigot_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_spigot_class, (t_method)pdp_spigot_toggle, gensym("toggle"), A_DEFFLOAT, A_NULL);
class_sethelpsymbol( pdp_spigot_class, gensym("pdp_spigot.pd") );
}
#ifdef __cplusplus
}
#endif
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