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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_resample.h"
typedef struct pdp_zoom_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;
float x_zoom_x;
float x_zoom_y;
float x_center_x;
float x_center_y;
int x_quality; //not used
} t_pdp_zoom;
static void pdp_zoom_process_yv12(t_pdp_zoom *x)
{
t_pdp *header0 = pdp_packet_header(x->x_packet0);
t_pdp *header1 = pdp_packet_header(x->x_packet1);
void *data0 = pdp_packet_data (x->x_packet0);
void *data1 = pdp_packet_data (x->x_packet1);
unsigned int w = header0->info.image.width;
unsigned int h = header0->info.image.height;
short int *src_image = (short int *)data0;
short int *dst_image = (short int *)data1;
unsigned int size = w * h;
unsigned int voffset = size;
unsigned int uoffset = size + (size>>2);
pdp_resample_zoom_tiled_bilin(src_image, dst_image, w, h, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
pdp_resample_zoom_tiled_bilin(src_image+voffset, dst_image+voffset, w>>1, h>>1, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
pdp_resample_zoom_tiled_bilin(src_image+uoffset, dst_image+uoffset, w>>1, h>>1, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
return;
}
static void pdp_zoom_process_grey(t_pdp_zoom *x)
{
t_pdp *header0 = pdp_packet_header(x->x_packet0);
t_pdp *header1 = pdp_packet_header(x->x_packet1);
void *data0 = pdp_packet_data (x->x_packet0);
void *data1 = pdp_packet_data (x->x_packet1);
unsigned int w = header0->info.image.width;
unsigned int h = header0->info.image.height;
short int *src_image = (short int *)data0;
short int *dst_image = (short int *)data1;
pdp_resample_zoom_tiled_bilin(src_image, dst_image, w, h, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
return;
}
static void pdp_zoom_sendpacket(t_pdp_zoom *x)
{
/* delete source packet */
pdp_packet_mark_unused(x->x_packet0);
x->x_packet0 = -1;
/* unregister and propagate if valid dest packet */
pdp_pass_if_valid(x->x_outlet0, &x->x_packet1);
}
static void pdp_zoom_process(t_pdp_zoom *x)
{
t_pdp *header0 = pdp_packet_header(x->x_packet0);
/* check data packets */
if ((header0) && (PDP_IMAGE == header0->type)){
/* type hub */
switch(header0->info.image.encoding){
case PDP_IMAGE_YV12:
x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
pdp_queue_add(x, pdp_zoom_process_yv12, pdp_zoom_sendpacket, &x->x_queue_id);
break;
case PDP_IMAGE_GREY:
x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
pdp_queue_add(x, pdp_zoom_process_grey, pdp_zoom_sendpacket, &x->x_queue_id);
break;
default:
break;
/* don't know the type, so dont process */
}
}
}
static void pdp_zoom_input_0(t_pdp_zoom *x, t_symbol *s, t_floatarg f)
{
int p = (int)f;
int passes, i;
if (s== gensym("register_rw")) x->x_dropped = pdp_packet_copy_ro_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_zoom_process(x);
}
}
static void pdp_zoom_x(t_pdp_zoom *x, t_floatarg f)
{
x->x_zoom_x = f;
}
static void pdp_zoom_y(t_pdp_zoom *x, t_floatarg f)
{
x->x_zoom_y = f;
}
static void pdp_zoom(t_pdp_zoom *x, t_floatarg f)
{
pdp_zoom_x(x, f);
pdp_zoom_y(x, f);
}
static void pdp_zoom_center_x(t_pdp_zoom *x, t_floatarg f)
{
x->x_center_x = (f + 0.5f);
}
static void pdp_zoom_center_y(t_pdp_zoom *x, t_floatarg f)
{
x->x_center_y = (f + 0.5f);
}
static void pdp_zoom_center(t_pdp_zoom *x, t_floatarg fx, t_floatarg fy)
{
pdp_zoom_center_x(x, fx);
pdp_zoom_center_y(x, fy);
}
static void pdp_zoom_quality(t_pdp_zoom *x, t_floatarg f)
{
if (f==0) x->x_quality = 0;
if (f==1) x->x_quality = 1;
}
t_class *pdp_zoom_class;
void pdp_zoom_free(t_pdp_zoom *x)
{
pdp_queue_finish(x->x_queue_id);
pdp_packet_mark_unused(x->x_packet0);
pdp_packet_mark_unused(x->x_packet1);
}
void *pdp_zoom_new(t_floatarg fw, t_floatarg zoom)
{
t_pdp_zoom *x = (t_pdp_zoom *)pd_new(pdp_zoom_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("zoom"));
x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
x->x_packet0 = -1;
x->x_packet1 = -1;
x->x_queue_id = -1;
pdp_zoom_quality(x, 1);
pdp_zoom_center_x(x, 0);
pdp_zoom_center_y(x, 0);
if (zoom = 0.0f) zoom = 1.0f;
pdp_zoom(x, zoom);
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_zoom_setup(void)
{
pdp_zoom_class = class_new(gensym("pdp_zoom"), (t_newmethod)pdp_zoom_new,
(t_method)pdp_zoom_free, sizeof(t_pdp_zoom), 0, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_quality, gensym("quality"), A_FLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_center_x, gensym("centerx"), A_FLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_center_y, gensym("centery"), A_FLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_center, gensym("center"), A_FLOAT, A_FLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_x, gensym("zoomx"), A_FLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_y, gensym("zoomy"), A_FLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom, gensym("zoom"), A_FLOAT, A_NULL);
class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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