1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/* Copyright (c) 2002-2003 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
#include "m_pd.h"
#include "sickle/sic.h"
#define VECTRAL_DEFSIZE 512
struct _vectral;
typedef void (*t_vectral_perform)(struct _vectral *, int,
t_float *, t_float *, t_float *, t_float *);
typedef struct _vectral
{
t_sic x_sic;
t_vectral_perform x_perform;
int x_bufsize;
t_float *x_buffer;
t_float *x_lastframe;
/* rampsmooth and slide state */
double x_upcoef;
double x_downcoef;
/* deltaclip state */
float x_lo;
float x_hi;
} t_vectral;
static t_class *vectral_class;
/* LATER after any modification make sure about syncing other variants
of perform routine to the bypassing version */
/* this is: for i in [0..nblock) buf[in2[i]] = in3[i], out[i] = buf[in1[i]] */
static void vectral_perform_bypass(t_vectral *x, int nblock,
t_float *in1, t_float *in2, t_float *in3,
t_float *out)
{
t_float *buf = x->x_buffer;
int bufsize = x->x_bufsize;
t_float *last = x->x_lastframe;
int blocksize = nblock;
while (nblock--)
{
int indx = (int)*in2++;
/* CHECKED buffer not zeroed out (the buffer's garbage remains) */
if (indx >= 0 && indx < bufsize)
buf[indx] = *in3;
in3++;
}
while (blocksize--)
{
int ondx = (int)*in1++;
if (ondx >= 0 && ondx < bufsize)
*out++ = *last++ = buf[ondx];
else
/* CHECKED garbage in the output vector is cleared */
*out++ = *last++ = 0.;
}
}
/* this one is used for rampsmooth mode as well (see rampsmooth.c)
LATER recheck */
static void vectral_perform_slide(t_vectral *x, int nblock,
t_float *in1, t_float *in2, t_float *in3,
t_float *out)
{
t_float *buf = x->x_buffer;
int bufsize = x->x_bufsize;
double upcoef = x->x_upcoef;
double downcoef = x->x_downcoef;
t_float *last = x->x_lastframe;
int blocksize = nblock;
while (nblock--)
{
int indx = (int)*in2++;
if (indx >= 0 && indx < bufsize)
buf[indx] = *in3;
in3++;
}
while (blocksize--)
{
int ondx = (int)*in1++;
if (ondx >= 0 && ondx < bufsize)
{
/* CHECKME what is smoothed, and FIXME */
float delta = buf[ondx] - *last;
*out++ =
(*last++ += (delta > 0 ? delta * upcoef : delta * downcoef));
}
else *out++ = *last++ = 0.;
}
}
static void vectral_perform_clip(t_vectral *x, int nblock,
t_float *in1, t_float *in2, t_float *in3,
t_float *out)
{
t_float *buf = x->x_buffer;
int bufsize = x->x_bufsize;
float lo = x->x_lo;
float hi = x->x_hi;
t_float *last = x->x_lastframe;
int blocksize = nblock;
while (nblock--)
{
int indx = (int)*in2++;
if (indx >= 0 && indx < bufsize)
buf[indx] = *in3;
in3++;
}
while (blocksize--)
{
int ondx = (int)*in1++;
if (ondx >= 0 && ondx < bufsize)
{
/* CHECKME what is smoothed, and FIXME */
float delta = buf[ondx] - *last;
if (delta < lo)
*out++ = (*last++ += lo);
else if (delta > hi)
*out++ = (*last++ += hi);
else
*out++ = *last++ = buf[ondx];
}
else *out++ = *last++ = 0.;
}
}
static t_int *vectral_perform(t_int *w)
{
t_vectral *x = (t_vectral *)(w[1]);
(*x->x_perform)(x, (int)(w[2]), (t_float *)(w[3]), (t_float *)(w[4]),
(t_float *)(w[5]), (t_float *)(w[6]));
return (w + 7);
}
static void vectral_dsp(t_vectral *x, t_signal **sp)
{
int nblock = sp[0]->s_n;
if (nblock > x->x_bufsize)
nblock = x->x_bufsize; /* CHECKME */
dsp_add(vectral_perform, 6, x, nblock,
sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec);
}
static void vectral_rampsmooth(t_vectral *x, t_symbol *s, int ac, t_atom *av)
{
if (ac && av->a_type == A_FLOAT)
{
int i;
x->x_upcoef = ((i = (int)av->a_w.w_float) > 1 ? 1. / (double)i : 1.);
ac--; av++;
if (ac && av->a_type == A_FLOAT)
x->x_downcoef =
((i = (int)av->a_w.w_float) > 1 ? 1. / (double)i : 1.);
else
x->x_downcoef = 1.; /* CHECKED */
x->x_perform = vectral_perform_slide; /* see above */
}
else x->x_perform = vectral_perform_bypass; /* CHECKED */
}
static void vectral_slide(t_vectral *x, t_symbol *s, int ac, t_atom *av)
{
if (ac && av->a_type == A_FLOAT)
{
double d;
x->x_upcoef = ((d = av->a_w.w_float) > 1. ? 1. / d : 1.);
ac--; av++;
if (ac && av->a_type == A_FLOAT)
x->x_downcoef = ((d = av->a_w.w_float) > 1. ? 1. / d : 1.);
else
x->x_downcoef = 1.; /* CHECKED */
x->x_perform = vectral_perform_slide;
}
else x->x_perform = vectral_perform_bypass; /* CHECKED */
}
/* CHECKED 'deltaclip <hi> <lo>' (deltaclip~'s args are swapped) */
static void vectral_deltaclip(t_vectral *x, t_symbol *s, int ac, t_atom *av)
{
if (ac && av->a_type == A_FLOAT)
{
x->x_hi = av->a_w.w_float;
ac--; av++;
if (ac && av->a_type == A_FLOAT)
x->x_lo = av->a_w.w_float;
else
x->x_lo = 0.; /* CHECKED */
}
else x->x_lo = x->x_hi = 0.; /* CHECKED */
x->x_perform = vectral_perform_clip;
}
static void vectral_free(t_vectral *x)
{
if (x->x_buffer)
freebytes(x->x_buffer, x->x_bufsize * sizeof(*x->x_buffer));
if (x->x_lastframe)
freebytes(x->x_lastframe, x->x_bufsize * sizeof(*x->x_lastframe));
}
static void *vectral_new(t_floatarg f)
{
t_vectral *x = (t_vectral *)pd_new(vectral_class);
int i = (int)f;
x->x_bufsize = (i > 0 ? i : VECTRAL_DEFSIZE);
if (!(x->x_buffer = getbytes(x->x_bufsize * sizeof(*x->x_buffer))))
goto failure;
if (!(x->x_lastframe = getbytes(x->x_bufsize * sizeof(*x->x_lastframe))))
goto failure;
x->x_perform = vectral_perform_bypass;
inlet_new((t_object *)x, (t_pd *)x, &s_signal, &s_signal);
inlet_new((t_object *)x, (t_pd *)x, &s_signal, &s_signal);
outlet_new((t_object *)x, &s_signal);
return (x);
failure:
pd_free((t_pd *)x);
return (0);
}
void vectral_tilde_setup(void)
{
vectral_class = class_new(gensym("vectral~"),
(t_newmethod)vectral_new,
(t_method)vectral_free,
sizeof(t_vectral), 0, A_DEFFLOAT, 0);
sic_setup(vectral_class, vectral_dsp, SIC_FLOATTOSIGNAL);
class_addmethod(vectral_class, (t_method)vectral_rampsmooth,
gensym("rampsmooth"), A_GIMME, 0);
class_addmethod(vectral_class, (t_method)vectral_slide,
gensym("slide"), A_GIMME, 0);
class_addmethod(vectral_class, (t_method)vectral_deltaclip,
gensym("deltaclip"), A_GIMME, 0);
}
|
