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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 "pdp.h"
#include "yuv.h"
#include <math.h>
typedef struct pdp_yvu2rgb_struct
{
t_object x_obj;
t_float x_f;
t_outlet *x_outlet0;
t_int x_packet0;
t_int x_packet1;
t_int x_dropped;
t_int x_queue_id;
unsigned int *x_RGBFrame;
t_int x_RGBFrameSize;
} t_pdp_yvu2rgb;
static void pdp_yvu2rgb_process_yv12(t_pdp_yvu2rgb *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;
unsigned int w = header->info.image.width;
unsigned int h = header->info.image.height;
unsigned int size = w*h;
unsigned int totalnbpixels = size;
unsigned int u_offset = size;
unsigned int v_offset = size + (size>>2);
unsigned int totnbpixels = size + (size>>1);
unsigned int row, col;
newheader->info.image.encoding = header->info.image.encoding;
newheader->info.image.width = w;
newheader->info.image.height = h;
if ( !x->x_RGBFrame )
{
x->x_RGBFrame = ( unsigned int* ) getbytes( size*sizeof( unsigned int ) );
x->x_RGBFrameSize = size*sizeof( unsigned int );
post( "pdp_yvu2rgb : allocated frame size=%d", x->x_RGBFrameSize );
}
if ( !x->x_RGBFrame )
{
post( "pdp_yvu2rgb : cannot allocate frame" );
return;
}
yuv_Y122RGB( data, x->x_RGBFrame, w, h );
// post( "pdp_yvu2rgb : converted to RGB" );
yuv_RGB2Y12( x->x_RGBFrame, newdata, w, h );
// post( "pdp_yvu2rgb : converted to Y12" );
return;
}
static void pdp_yvu2rgb_sendpacket(t_pdp_yvu2rgb *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_yvu2rgb_process(t_pdp_yvu2rgb *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_yvu2rgb_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_yvu2rgb_process_yv12, pdp_yvu2rgb_sendpacket, &x->x_queue_id);
break;
case PDP_IMAGE_GREY:
// pdp_yvu2rgb_process_packet(x);
break;
default:
/* don't know the type, so dont pdp_yvu2rgb_process */
break;
}
}
}
static void pdp_yvu2rgb_input_0(t_pdp_yvu2rgb *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_yvu2rgb_process(x);
}
}
static void pdp_yvu2rgb_free(t_pdp_yvu2rgb *x)
{
pdp_queue_finish(x->x_queue_id);
pdp_packet_mark_unused(x->x_packet0);
if (x->x_RGBFrame ) freebytes( x->x_RGBFrame, x->x_RGBFrameSize );
}
t_class *pdp_yvu2rgb_class;
void *pdp_yvu2rgb_new(void)
{
int i;
t_pdp_yvu2rgb *x = (t_pdp_yvu2rgb *)pd_new(pdp_yvu2rgb_class);
x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
x->x_packet0 = -1;
x->x_packet1 = -1;
x->x_queue_id = -1;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_yvu2rgb_setup(void)
{
pdp_yvu2rgb_class = class_new(gensym("pdp_yvu2rgb"), (t_newmethod)pdp_yvu2rgb_new,
(t_method)pdp_yvu2rgb_free, sizeof(t_pdp_yvu2rgb), 0, A_NULL);
class_addmethod(pdp_yvu2rgb_class, (t_method)pdp_yvu2rgb_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_sethelpsymbol( pdp_yvu2rgb_class, gensym("pdp_yvu2rgb.pd") );
}
#ifdef __cplusplus
}
#endif
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