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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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include "pdp.h"
typedef struct pdp_artkp
{
t_object x_obj;
t_float x_f;
t_outlet *x_outlet0;
int x_packet0;
int x_packet1;
int x_dropped;
int x_queue_id;
int x_width;
int x_height;
int x_size;
} t_pdp_artkp;
static void pdp_artkp_process_rgb(t_pdp_artkp *x)
{
t_pdp *header = pdp_packet_header(x->x_packet0);
short int *data = (short int *)pdp_packet_data(x->x_packet0);
t_pdp *newheader = pdp_packet_header(x->x_packet1);
short int *newdata = (short int *)pdp_packet_data(x->x_packet1);
int i;
if ((x->x_width != (t_int)header->info.image.width) ||
(x->x_height != (t_int)header->info.image.height))
{
post("pdp_artkp :: resizing plugins");
x->x_width = header->info.image.width;
x->x_height = header->info.image.height;
x->x_size = x->x_width*x->x_height;
}
newheader->info.image.encoding = header->info.image.encoding;
newheader->info.image.width = x->x_width;
newheader->info.image.height = x->x_height;
memcpy( newdata, data, x->x_size*3 );
return;
}
static void pdp_artkp_sendpacket(t_pdp_artkp *x)
{
/* release the packet */
pdp_packet_mark_unused(x->x_packet0);
x->x_packet0 = -1;
/* unregister and propagate if valid dest packet */
pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
}
static void pdp_artkp_process(t_pdp_artkp *x)
{
int encoding;
t_pdp *header = 0;
/* check if image data packets are compatible */
if ( (header = pdp_packet_header(x->x_packet0))
&& (PDP_BITMAP == header->type)){
/* pdp_artkp_process inputs and write into active inlet */
switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
case PDP_BITMAP_RGB:
x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
pdp_queue_add(x, (void*)pdp_artkp_process_rgb, (void*)pdp_artkp_sendpacket, &x->x_queue_id);
break;
default:
/* don't know the type, so dont pdp_artkp_process */
break;
}
}
}
static void pdp_artkp_input_0(t_pdp_artkp *x, t_symbol *s, t_floatarg f)
{
/* if this is a register_ro message or register_rw message, register with packet factory */
if (s == gensym("register_rw"))
x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym((char*)"bitmap/rgb/*") );
if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
{
/* add the process method and callback to the process queue */
pdp_artkp_process(x);
}
}
static void pdp_artkp_free(t_pdp_artkp *x)
{
int i;
pdp_queue_finish(x->x_queue_id);
pdp_packet_mark_unused(x->x_packet0);
}
t_class *pdp_artkp_class;
void *pdp_artkp_new(t_floatarg f)
{
int i;
t_pdp_artkp *x = (t_pdp_artkp *)pd_new(pdp_artkp_class);
x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
x->x_packet0 = -1;
x->x_packet1 = -1;
x->x_queue_id = -1;
x->x_width = 320;
x->x_height = 240;
x->x_size = x->x_width * x->x_height;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_artkp_setup(void)
{
pdp_artkp_class = class_new(gensym("pdp_artkp"), (t_newmethod)pdp_artkp_new,
(t_method)pdp_artkp_free, sizeof(t_pdp_artkp), 0, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_artkp_class, (t_method)pdp_artkp_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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