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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 "pdp_mmx.h"
typedef struct pdp_cheby_struct
{
t_object x_obj;
t_float x_f;
t_outlet *x_outlet0;
int x_packet0;
int x_queue_id;
int x_dropped; // indicate if a packet was dropped during register_rw cycle
int x_channel;
void *x_cheby;
int x_iterations;
int x_order;
} t_pdp_cheby;
static void pdp_cheby_process_yv12(t_pdp_cheby *x)
{
t_pdp *header0 = pdp_packet_header(x->x_packet0);
void *data0 = pdp_packet_data (x->x_packet0);
unsigned int w = header0->info.image.width;
unsigned int h = header0->info.image.height;
unsigned int size = w*h;
unsigned int v_offset = size;
unsigned int u_offset = size + (size >> 2) ;
unsigned int i,j;
short int * idata = (short int *)data0;
int ch = x->x_channel;
if((ch == 0) || (ch==1)) pdp_imageproc_cheby_process(x->x_cheby, &idata[0], w, h, x->x_iterations );
if((ch == 0) || (ch==2)) pdp_imageproc_cheby_process(x->x_cheby, &idata[v_offset], w>>1, h>>1, x->x_iterations);
if((ch == 0) || (ch==3)) pdp_imageproc_cheby_process(x->x_cheby, &idata[u_offset], w>>1, h>>1, x->x_iterations);
return;
}
static void pdp_cheby_process_grey(t_pdp_cheby *x)
{
t_pdp *header0 = pdp_packet_header(x->x_packet0);
void *data0 = pdp_packet_data (x->x_packet0);
unsigned int w = header0->info.image.width;
unsigned int h = header0->info.image.height;
short int * idata = (short int *)data0;
int ch = x->x_channel;
if((ch == 0) || (ch==1)) pdp_imageproc_cheby_process(x->x_cheby, &idata[0], w, h, x->x_iterations);
return;
}
static void pdp_cheby_process(t_pdp_cheby *x)
{
t_pdp *header0 = pdp_packet_header(x->x_packet0);
/* check data packets */
if ((header0) && (PDP_IMAGE == header0->type)){
/* pdp_cheby_process inputs and write into active inlet */
switch(header0->info.image.encoding){
case PDP_IMAGE_YV12:
pdp_cheby_process_yv12(x);
break;
case PDP_IMAGE_GREY:
pdp_cheby_process_grey(x);
break;
default:
break;
/* don't know the type, so dont pdp_cheby_process */
}
}
}
static void pdp_cheby_sendpacket(t_pdp_cheby *x)
{
/* unregister and propagate if valid packet */
pdp_pass_if_valid(x->x_outlet0, &x->x_packet0);
}
static void pdp_cheby_input_0(t_pdp_cheby *x, t_symbol *s, t_floatarg f)
{
int p = (int)f;
if (s== gensym("register_rw")) x->x_dropped = pdp_packet_copy_rw_or_drop(&x->x_packet0, p);
if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){
/* add the process method and callback to the process queue */
pdp_queue_add(x, pdp_cheby_process, pdp_cheby_sendpacket, &x->x_queue_id);
}
}
static void pdp_cheby_coef(t_pdp_cheby *x, t_floatarg c, t_floatarg f)
{
pdp_imageproc_cheby_setcoef(x->x_cheby, (int)c, f);
}
static void pdp_cheby_reset(t_pdp_cheby *x)
{
int i;
for (i = 0; i <= x->x_order; i++)
pdp_imageproc_cheby_setcoef(x->x_cheby, i, 0);
}
static void pdp_cheby_channel(t_pdp_cheby *x, t_floatarg f)
{
int ch = (int)f;
if ((ch < 1) || (ch > 3)) ch = 0;
x->x_channel = ch;
}
static void pdp_cheby_iterations(t_pdp_cheby *x, t_floatarg f)
{
int i = (int)f;
if (i<0) i = 0;
x->x_iterations = i;
}
static void pdp_cheby_free(t_pdp_cheby *x)
{
pdp_queue_finish(x->x_queue_id);
pdp_imageproc_cheby_delete(x->x_cheby);
pdp_packet_mark_unused(x->x_packet0);
}
t_class *pdp_cheby_class;
void *pdp_cheby_new(t_floatarg f)
{
t_pdp_cheby *x = (t_pdp_cheby *)pd_new(pdp_cheby_class);
int order = (int)(f);
if (order < 2) order = 2;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("iterations"));
x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
x->x_packet0 = -1;
x->x_queue_id = -1;
x->x_cheby = pdp_imageproc_cheby_new(order);
// default: process all channels
x->x_channel = 0;
x->x_iterations = 1;
x->x_order = order;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_cheby_setup(void)
{
pdp_cheby_class = class_new(gensym("pdp_cheby"), (t_newmethod)pdp_cheby_new,
(t_method)pdp_cheby_free, sizeof(t_pdp_cheby), 0, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_coef, gensym("coef"), A_FLOAT, A_FLOAT, A_NULL);
class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_iterations, gensym("iterations"), A_FLOAT, A_NULL);
class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_channel, gensym("chan"), A_FLOAT, A_NULL);
class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_reset, gensym("reset"), A_NULL);
}
#ifdef __cplusplus
}
#endif
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