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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_imagebase.h"
typedef struct pdp_constant_struct
{
t_pdp_imagebase x_base;
t_outlet *x_outlet0;
int x_packet0;
t_symbol *x_type;
unsigned int x_width;
unsigned int x_height;
void *x_constant;
} t_pdp_constant;
void pdp_constant_type(t_pdp_constant *x, t_symbol *s)
{
x->x_type = s;
}
void pdp_constant_value(t_pdp_constant *x, t_floatarg f)
{
if (f>1.0f) f = 1.0f;
if (f<-1.0f) f = -1.0f;
x->x_constant = (void *)((s32)(0x7fff * f));
}
static void pdp_constant_process(t_pdp_constant *x)
{
/* get channel mask */
u32 mask = pdp_imagebase_get_chanmask(x);
/* create new packet */
if (x->x_type == gensym("yv12")){x->x_packet0 = pdp_packet_new_image_YCrCb(x->x_width, x->x_height);}
else if (x->x_type == gensym("grey")){x->x_packet0 = pdp_packet_new_image_grey(x->x_width, x->x_height);}
else return;
/* this processes the packets using a pdp image processor */
pdp_imageproc_dispatch_1buf(&pdp_imageproc_constant_process, x->x_constant, mask, x->x_packet0);
pdp_imageproc_dispatch_1buf(&pdp_imageproc_constant_process, 0, ~mask, x->x_packet0);
return;
}
static void pdp_constant_postproc(t_pdp_constant *x)
{
pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
}
static void pdp_constant_bang(t_pdp_constant *x)
{
pdp_base_bang(x);
}
static void pdp_constant_dim(t_pdp_constant *x, t_floatarg w, t_floatarg h)
{
x->x_width = pdp_imageproc_legalwidth((int)w);
x->x_height = pdp_imageproc_legalheight((int)h);
//post("dims %d %d", x->x_width, x->x_height);
}
static void pdp_constant_free(t_pdp_constant *x)
{
pdp_imagebase_free(x);
pdp_packet_mark_unused(x->x_packet0);
}
t_class *pdp_constant_class;
void *pdp_constant_new(void)
{
int i;
t_pdp_constant *x = (t_pdp_constant *)pd_new(pdp_constant_class);
/* super init */
pdp_imagebase_init(x);
/* in/out*/
pdp_base_add_gen_inlet(x, gensym("float"), gensym("value"));
x->x_outlet0 = pdp_base_add_pdp_outlet(x);
/* base callbacks */
pdp_base_disable_active_inlet(x);
pdp_base_set_process_method(x, (t_pdp_method)pdp_constant_process);
pdp_base_set_postproc_method(x, (t_pdp_method)pdp_constant_postproc);
/* data init */
x->x_packet0 = -1;
pdp_constant_dim(x, 320, 240);
pdp_constant_value(x, 0.0f);
pdp_constant_type(x, gensym("yv12"));
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_constant_setup(void)
{
pdp_constant_class = class_new(gensym("pdp_constant"), (t_newmethod)pdp_constant_new,
(t_method)pdp_constant_free, sizeof(t_pdp_constant), 0, A_NULL);
pdp_imagebase_setup(pdp_constant_class);
class_addmethod(pdp_constant_class, (t_method)pdp_constant_value, gensym("value"), A_DEFFLOAT, A_NULL);
class_addmethod(pdp_constant_class, (t_method)pdp_constant_type, gensym("type"), A_SYMBOL, A_NULL);
class_addmethod(pdp_constant_class, (t_method)pdp_constant_dim, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL);
class_addmethod(pdp_constant_class, (t_method)pdp_constant_bang, gensym("bang"), A_NULL);
}
#ifdef __cplusplus
}
#endif
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