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/*
* 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 a port of cycle effect from EffecTV
* Originally written by clifford smith <nullset@dookie.net>
* Pd-fication by Yves Degoyon ( ydegoyon@free.fr )
*/
#include "pdp.h"
#include <math.h>
#define NEWCOLOR(c,o) ((c+o)%230)
static char *pdp_cycle_version = "pdp_cycle: version 0.1, port of cycle from EffecTV by clifford smith, adapted by ydegoyon@free.fr ";
typedef struct pdp_cycle_struct
{
t_object x_obj;
t_float x_f;
int x_packet0;
int x_packet1;
int x_dropped;
int x_queue_id;
t_outlet *x_outlet0;
int x_vwidth;
int x_vheight;
int x_vsize;
int x_cycley; // flag to activate y cycling
int x_cycleu; // flag to activate u cycling
int x_cyclev; // flag to activate v cycling
int x_yoffset;
int x_uoffset;
int x_voffset;
} t_pdp_cycle;
static void pdp_cycle_cycley(t_pdp_cycle *x, t_floatarg fcycley )
{
if ( ( fcycley == 0 ) || ( fcycley == 1 ) )
{
x->x_cycley = fcycley;
}
}
static void pdp_cycle_cycleu(t_pdp_cycle *x, t_floatarg fcycleu )
{
if ( ( fcycleu == 0 ) || ( fcycleu == 1 ) )
{
x->x_cycleu = fcycleu;
}
}
static void pdp_cycle_cyclev(t_pdp_cycle *x, t_floatarg fcyclev )
{
if ( ( fcyclev == 0 ) || ( fcyclev == 1 ) )
{
x->x_cyclev = fcyclev;
}
}
static void pdp_cycle_process_yv12(t_pdp_cycle *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;
int px, py, y, u, v;
x->x_vwidth = header->info.image.width;
x->x_vheight = header->info.image.height;
x->x_vsize = x->x_vwidth*x->x_vheight;
newheader->info.image.encoding = header->info.image.encoding;
newheader->info.image.width = x->x_vwidth;
newheader->info.image.height = x->x_vheight;
x->x_yoffset += 1;
x->x_uoffset += 3;
x->x_voffset += 7;
for(py=1; py<x->x_vheight; py++)
{
for(px=0; px<x->x_vwidth; px++)
{
if ( x->x_cycley )
{
y = *(data+py*x->x_vwidth+px)>>7;
*(newdata+py*x->x_vwidth+px) = NEWCOLOR(y,x->x_yoffset)<<7;
}
if ( x->x_cycleu )
{
u = ( *(data+x->x_vsize+(x->x_vsize>>2)+((py*x->x_vwidth>>2)+(px>>1))) >>8 ) + 128;
*(newdata+x->x_vsize+(x->x_vsize>>2)+((py*x->x_vwidth>>2)+(px>>1))) = (NEWCOLOR(u,x->x_uoffset)-128)<<8;
}
if ( x->x_cyclev )
{
v = ( *(data+x->x_vsize+((py*x->x_vwidth>>2)+(px>>1))) >>8 ) + 128;
*(newdata+x->x_vsize+((py*x->x_vwidth>>2)+(px>>1))) = (NEWCOLOR(v,x->x_voffset)-128)<<8;
}
}
}
return;
}
static void pdp_cycle_sendpacket(t_pdp_cycle *x)
{
/* delete source 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_cycle_process(t_pdp_cycle *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_cycle_process inputs and write into active inlet */
switch(pdp_packet_header(x->x_packet0)->info.image.encoding)
{
case PDP_IMAGE_YV12:
x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
pdp_queue_add(x, pdp_cycle_process_yv12, pdp_cycle_sendpacket, &x->x_queue_id);
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_cycle_process */
break;
}
}
}
static void pdp_cycle_input_0(t_pdp_cycle *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("image/YCrCb/*") );
if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){
/* add the process method and callback to the process queue */
pdp_cycle_process(x);
}
}
static void pdp_cycle_free(t_pdp_cycle *x)
{
int i;
pdp_queue_finish(x->x_queue_id);
pdp_packet_mark_unused(x->x_packet0);
}
t_class *pdp_cycle_class;
void *pdp_cycle_new(void)
{
int i;
t_pdp_cycle *x = (t_pdp_cycle *)pd_new(pdp_cycle_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cycley"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cycleu"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cyclev"));
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_cycley = 1;
x->x_cycleu = 0;
x->x_cyclev = 0;
x->x_yoffset = 0;
x->x_uoffset = 0;
x->x_voffset = 0;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_cycle_setup(void)
{
// post( pdp_cycle_version );
pdp_cycle_class = class_new(gensym("pdp_cycle"), (t_newmethod)pdp_cycle_new,
(t_method)pdp_cycle_free, sizeof(t_pdp_cycle), 0, A_NULL);
class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_cycley, gensym("cycley"), A_DEFFLOAT, A_NULL);
class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_cycleu, gensym("cycleu"), A_DEFFLOAT, A_NULL);
class_addmethod(pdp_cycle_class, (t_method)pdp_cycle_cyclev, gensym("cyclev"), A_DEFFLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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