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/*
* Pure Data Packet module.
* Copyright (c) by Tom Schouten <tom@zwizwa.be>
*
* 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_mix_struct
{
t_pdp_imagebase x_base;
t_outlet *x_outlet0;
t_outlet *x_outlet1;
void *x_mixer;
int x_extrapolate;
} t_pdp_mix;
static void pdp_mix_process(t_pdp_mix *x)
{
int p0 = pdp_base_get_packet(x, 0);
int p1 = pdp_base_get_packet(x, 1);
u32 mask = pdp_imagebase_get_chanmask(x);
pdp_imageproc_dispatch_2buf(&pdp_imageproc_mix_process, x->x_mixer, mask, p0, p1);
}
static void pdp_mix_mix(t_pdp_mix *x, t_floatarg f)
{
float f2;
if (!x->x_extrapolate){
if (f < 0.0f) f = 0.0f;
if (f > 1.0f) f = 1.0f;
}
f2 = (1.0f - f);
pdp_imageproc_mix_setleftgain(x->x_mixer, f2);
pdp_imageproc_mix_setrightgain(x->x_mixer, f);
}
static void pdp_mix_mix1(t_pdp_mix *x, t_floatarg f)
{
pdp_imageproc_mix_setleftgain(x->x_mixer, f);
}
static void pdp_mix_mix2(t_pdp_mix *x, t_floatarg f2)
{
pdp_imageproc_mix_setrightgain(x->x_mixer, f2);
}
static void pdp_mix_extrapolate(t_pdp_mix *x, t_floatarg f)
{
if (f == 0.0f) x->x_extrapolate = 0;
if (f == 1.0f) x->x_extrapolate = 1;
}
static void pdp_mix_free(t_pdp_mix *x)
{
pdp_imagebase_free(x);
pdp_imageproc_mix_delete(x->x_mixer);
}
t_class *pdp_mix_class;
t_class *pdp_mix2_class;
void *pdp_mix_common_init(t_pdp_mix *x)
{
int i;
pdp_imagebase_init(x);
pdp_base_add_pdp_inlet(x);
pdp_base_add_pdp_outlet(x);
pdp_base_set_process_method(x, (t_pdp_method)pdp_mix_process);
x->x_extrapolate = 0;
x->x_mixer = pdp_imageproc_mix_new();
pdp_mix_mix(x, 0.0f);
return (void *)x;
}
void *pdp_mix_new(t_floatarg mix)
{
t_pdp_mix *x = (t_pdp_mix *)pd_new(pdp_mix_class);
pdp_mix_common_init(x);
pdp_base_add_gen_inlet(x, gensym("float"), gensym("mix"));
if (mix == 0.0f) mix = 0.5f;
pdp_mix_mix(x, mix);
return (void *)x;
}
void *pdp_mix2_new(t_floatarg mix1, t_floatarg mix2)
{
t_pdp_mix *x = (t_pdp_mix *)pd_new(pdp_mix2_class);
pdp_mix_common_init(x);
pdp_base_add_gen_inlet(x, gensym("float"), gensym("mix1"));
pdp_base_add_gen_inlet(x, gensym("float"), gensym("mix2"));
if ((mix1 == 0.0f) && (mix2 == 0.0f)) mix1 = mix2 = 0.5f;
pdp_mix_mix1(x, mix1);
pdp_mix_mix2(x, mix2);
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_mix_setup(void)
{
pdp_mix_class = class_new(gensym("pdp_mix"), (t_newmethod)pdp_mix_new,
(t_method)pdp_mix_free, sizeof(t_pdp_mix), 0, A_DEFFLOAT, A_NULL);
pdp_imagebase_setup(pdp_mix_class);
class_addmethod(pdp_mix_class, (t_method)pdp_mix_mix, gensym("mix"), A_DEFFLOAT, A_NULL);
class_addmethod(pdp_mix_class, (t_method)pdp_mix_extrapolate, gensym("extrapolate"), A_DEFFLOAT, A_NULL);
pdp_mix2_class = class_new(gensym("pdp_mix2"), (t_newmethod)pdp_mix2_new,
(t_method)pdp_mix_free, sizeof(t_pdp_mix), 0, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
pdp_imagebase_setup(pdp_mix2_class);
class_addmethod(pdp_mix2_class, (t_method)pdp_mix_mix1, gensym("mix1"), A_DEFFLOAT, A_NULL);
class_addmethod(pdp_mix2_class, (t_method)pdp_mix_mix2, gensym("mix2"), A_DEFFLOAT, A_NULL);
class_addmethod(pdp_mix2_class, (t_method)pdp_mix_extrapolate, gensym("extrapolate"), A_DEFFLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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