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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 an adaptation of baltan effect from freej
* Originally written by Fukuchi Kentarou
* Adapted by Yves Degoyon
* Do not expect it to behave like effectv : well, it does things ....
*/
#include "pdp.h"
#include <math.h>
#define PLANES 32
#define STRIDE 8
typedef struct pdp_baltan_struct
{
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_planebuf;
int x_plane;
int x_pixels;
int x_dfts; /* the factor */
} t_pdp_baltan;
static void pdp_baltan_process_yv12(t_pdp_baltan *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);
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);
int i, cf;
newheader->info.image.encoding = header->info.image.encoding;
newheader->info.image.width = w;
newheader->info.image.height = h;
/* allocate buffers if necessary */
if ( ( x->x_planebuf == NULL ) || ( (int)size != x->x_pixels ) )
{
if ( x->x_planebuf ) freebytes( x->x_planebuf, x->x_pixels*PLANES*sizeof(int) );
x->x_pixels = size;
x->x_planebuf = (int*)getbytes(x->x_pixels*PLANES*sizeof(int));
post("pdp_baltan : allocated plane buffer (size=%d)", x->x_pixels*PLANES*sizeof(int) );
bzero(x->x_planebuf, x->x_pixels*PLANES*sizeof(int));
x->x_plane = 0;
if ( !x->x_planebuf )
{
post( "pdp_baltan : serious error : unable to allocate buffers " ) ;
return;
}
}
/* process data packet */
for(i=0; i<x->x_pixels; i++)
{
*(x->x_planebuf+x->x_plane*x->x_pixels+i) = (data[i] & x->x_dfts)>>2;
}
cf = x->x_plane & (STRIDE-1);
for(i=0; i<x->x_pixels; i++) {
newdata[i] = *(x->x_planebuf+cf*x->x_pixels+i)
+ *(x->x_planebuf+((cf+STRIDE)*x->x_pixels)+i)
+ *(x->x_planebuf+((cf+2*STRIDE)*x->x_pixels)+i)
+ *(x->x_planebuf+((cf+3*STRIDE)*x->x_pixels)+i);
*(x->x_planebuf+x->x_plane*x->x_pixels+i) = (newdata[i]&x->x_dfts)>>2;
}
x->x_plane++;
x->x_plane = x->x_plane & (PLANES-1);
/* leave the colors unchanged */
for( i=size; i<(int)totnbpixels; i++)
{
newdata[i] = data[i];
}
return;
}
static void pdp_baltan_sendpacket(t_pdp_baltan *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_baltan_process(t_pdp_baltan *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_baltan_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_baltan_process_yv12, pdp_baltan_sendpacket, &x->x_queue_id);
break;
case PDP_IMAGE_GREY:
// pdp_baltan_process_packet(x);
break;
default:
/* don't know the type, so dont pdp_baltan_process */
break;
}
}
}
static void pdp_baltan_input_0(t_pdp_baltan *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_baltan_process(x);
}
}
static void pdp_baltan_dfts(t_pdp_baltan *x, t_floatarg fdfts )
{
x->x_dfts = (int)fdfts;
}
static void pdp_baltan_free(t_pdp_baltan *x)
{
if ( x->x_planebuf ) freebytes( x->x_planebuf, x->x_pixels*PLANES*sizeof(int) );
pdp_queue_finish(x->x_queue_id);
pdp_packet_mark_unused(x->x_packet0);
}
t_class *pdp_baltan_class;
void *pdp_baltan_new(void)
{
int i;
t_pdp_baltan *x = (t_pdp_baltan *)pd_new(pdp_baltan_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("dfts"));
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_planebuf = NULL;
x->x_pixels = 0;
x->x_dfts = 0xfcfcfc;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_baltan_setup(void)
{
pdp_baltan_class = class_new(gensym("pdp_baltan"), (t_newmethod)pdp_baltan_new,
(t_method)pdp_baltan_free, sizeof(t_pdp_baltan), 0, A_NULL);
class_addmethod(pdp_baltan_class, (t_method)pdp_baltan_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_baltan_class, (t_method)pdp_baltan_dfts, gensym("dfts"), A_DEFFLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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