/*
* PiDiP module.
* Copyright (c) by Yves Degoyon (ydegoyon@free.fr)
*
* 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 an object allowing juxtaposition of frames from two inlets
* Written by Yves Degoyon
*/
#include "pdp.h"
#include <math.h>
static char *pdp_juxta_version = "pdp_juxta: version 0.1, frames juxtaposition, written by Yves Degoyon (ydegoyon@free.fr)";
typedef struct pdp_juxta_struct
{
t_object x_obj;
t_float x_f;
t_outlet *x_outlet0;
t_int x_packet0;
t_int x_packet1;
t_int x_packet;
t_int x_dropped;
t_int x_queue_id;
t_int x_vwidth0;
t_int x_vheight0;
t_int x_vsize0;
t_int x_vwidth1;
t_int x_vheight1;
t_int x_vsize1;
t_int x_vwidth;
t_int x_vheight;
t_int x_vsize;
} t_pdp_juxta;
static void pdp_juxta_process_yv12(t_pdp_juxta *x)
{
t_pdp *header0 = pdp_packet_header(x->x_packet0);
short int *data0 = (short int *)pdp_packet_data(x->x_packet0);
t_pdp *header1 = pdp_packet_header(x->x_packet1);
short int *data1 = (short int *)pdp_packet_data(x->x_packet1);
t_pdp *header;
short int *data;
int i;
short int *poY, *poV, *poU, *p0Y, *p0V, *p0U, *p1Y, *p1V, *p1U;
int px, py;
if ( header0 )
{
x->x_vwidth0 = header0->info.image.width;
x->x_vheight0 = header0->info.image.height;
x->x_vsize0 = x->x_vwidth0*x->x_vheight0;
}
else
{
x->x_vwidth0 = x->x_vheight0 = x->x_vsize0 = 0;
}
if ( header1 )
{
x->x_vwidth1 = header1->info.image.width;
x->x_vheight1 = header1->info.image.height;
x->x_vsize1 = x->x_vwidth1*x->x_vheight1;
}
else
{
x->x_vwidth1 = x->x_vheight1 = x->x_vsize1 = 0;
}
x->x_vwidth = x->x_vwidth0 + x->x_vwidth1;
if ( x->x_vheight0 > x->x_vheight1 )
{
x->x_vheight = x->x_vheight0;
}
else
{
x->x_vheight = x->x_vheight1;
}
x->x_vsize = x->x_vwidth*x->x_vheight;
// post( "pdp_juxta : resulting frame : %dx%d", x->x_vwidth, x->x_vheight );
x->x_packet = pdp_packet_new_image_YCrCb( x->x_vwidth, x->x_vheight );
header = pdp_packet_header(x->x_packet);
data = (short int *)pdp_packet_data(x->x_packet);
header->info.image.encoding = PDP_IMAGE_YV12;
header->info.image.width = x->x_vwidth;
header->info.image.height = x->x_vheight;
poY = data;
poV = data+x->x_vsize;
poU = data+x->x_vsize+(x->x_vsize>>2);
p0Y = data0;
p0V = data0+x->x_vsize0;
p0U = data0+x->x_vsize0+(x->x_vsize0>>2);
p1Y = data1;
p1V = data1+x->x_vsize1;
p1U = data1+x->x_vsize1+(x->x_vsize1>>2);
for ( py=0; py<x->x_vheight; py++ )
{
for ( px=0; px<x->x_vwidth; px++ )
{
if ( px < x->x_vwidth0 && p0Y )
{
*poY = *p0Y;
*poV = *p0V;
*poU = *p0U;
poY++;p0Y++;
if ( (px%2==0) && (py%2==0) )
{
poU++; poV++;
p0U++; p0V++;
}
}
if ( px >= x->x_vwidth0 && p1Y )
{
*poY = *p1Y;
*poV = *p1V;
*poU = *p1U;
poY++;p1Y++;
if ( (px%2==0) && (py%2==0) )
{
poU++; poV++;
p1U++; p1V++;
}
}
}
}
return;
}
static void pdp_juxta_sendpacket0(t_pdp_juxta *x)
{
/* unregister and propagate if valid dest packet */
pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet);
}
static void pdp_juxta_sendpacket1(t_pdp_juxta *x)
{
/* unregister and propagate if valid dest packet */
pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet);
}
static void pdp_juxta_process0(t_pdp_juxta *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_juxta_process inputs and write into active inlet */
switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
case PDP_IMAGE_YV12:
pdp_queue_add(x, pdp_juxta_process_yv12, pdp_juxta_sendpacket0, &x->x_queue_id);
break;
case PDP_IMAGE_GREY:
break;
default:
/* don't know the type, so dont pdp_juxta_process */
break;
}
}
}
static void pdp_juxta_process1(t_pdp_juxta *x)
{
int encoding;
t_pdp *header = 0;
/* check if image data packets are compatible */
if ( (header = pdp_packet_header(x->x_packet1))
&& (PDP_IMAGE == header->type)){
/* pdp_juxta_process inputs and write into active inlet */
switch(pdp_packet_header(x->x_packet1)->info.image.encoding){
case PDP_IMAGE_YV12:
pdp_queue_add(x, pdp_juxta_process_yv12, pdp_juxta_sendpacket1, &x->x_queue_id);
break;
case PDP_IMAGE_GREY:
break;
default:
/* don't know the type, so dont pdp_juxta_process */
break;
}
}
}
static void pdp_juxta_input_0(t_pdp_juxta *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"))
{
/* release the packet */
if ( x->x_packet0 != -1 )
{
pdp_packet_mark_unused(x->x_packet0);
x->x_packet0 = -1;
}
x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("image/YCrCb/*") );
}
if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){
/* add the process method and callback to the process queue */
pdp_juxta_process0(x);
}
}
static void pdp_juxta_input_1(t_pdp_juxta *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"))
{
/* release the packet */
if ( x->x_packet1 != -1 )
{
pdp_packet_mark_unused(x->x_packet1);
x->x_packet1 = -1;
}
x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet1, (int)f, pdp_gensym("image/YCrCb/*") );
}
if ((s == gensym("process")) && (-1 != x->x_packet1) && (!x->x_dropped)){
/* add the process method and callback to the process queue */
pdp_juxta_process1(x);
}
}
static void pdp_juxta_free(t_pdp_juxta *x)
{
int i;
pdp_queue_finish(x->x_queue_id);
pdp_packet_mark_unused(x->x_packet0);
pdp_packet_mark_unused(x->x_packet1);
}
t_class *pdp_juxta_class;
void *pdp_juxta_new(void)
{
int i;
t_pdp_juxta *x = (t_pdp_juxta *)pd_new(pdp_juxta_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp1"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp2"));
x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
x->x_packet0 = -1;
x->x_packet1 = -1;
x->x_packet = -1;
x->x_queue_id = -1;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_juxta_setup(void)
{
// post( pdp_juxta_version );
pdp_juxta_class = class_new(gensym("pdp_juxta"), (t_newmethod)pdp_juxta_new,
(t_method)pdp_juxta_free, sizeof(t_pdp_juxta), CLASS_NOINLET, A_NULL);
class_addmethod(pdp_juxta_class, (t_method)pdp_juxta_input_0, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_juxta_class, (t_method)pdp_juxta_input_1, gensym("pdp2"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_sethelpsymbol( pdp_juxta_class, gensym("pdp_juxta.pd") );
}
#ifdef __cplusplus
}
#endif