aboutsummaryrefslogtreecommitdiff
path: root/pd/src/d_dac.c
blob: 9d206c757134c8344e6bddfc3e485172789e92b3 (plain)
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
/* Copyright (c) 1997-1999 Miller Puckette.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */

/*  The dac~ and adc~ routines.
*/

#include "m_pd.h"
#include "s_stuff.h"

/* ----------------------------- dac~ --------------------------- */
static t_class *dac_class;

typedef struct _dac
{
    t_object x_obj;
    t_int x_n;
    t_int *x_vec;
    t_float x_f;
} t_dac;

static void *dac_new(t_symbol *s, int argc, t_atom *argv)
{
    t_dac *x = (t_dac *)pd_new(dac_class);
    t_atom defarg[2], *ap;
    int i;
    if (!argc)
    {
        argv = defarg;
        argc = 2;
        SETFLOAT(&defarg[0], 1);
        SETFLOAT(&defarg[1], 2);
    }
    x->x_n = argc;
    x->x_vec = (t_int *)getbytes(argc * sizeof(*x->x_vec));
    for (i = 0; i < argc; i++)
        x->x_vec[i] = atom_getintarg(i, argc, argv);
    for (i = 1; i < argc; i++)
        inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
    x->x_f = 0;
    return (x);
}

static void dac_dsp(t_dac *x, t_signal **sp)
{
    t_int i, *ip;
    t_signal **sp2;
    for (i = x->x_n, ip = x->x_vec, sp2 = sp; i--; ip++, sp2++)
    {
        int ch = *ip - 1;
        if ((*sp2)->s_n != DEFDACBLKSIZE)
            error("dac~: bad vector size");
        else if (ch >= 0 && ch < sys_get_outchannels())
            dsp_add(plus_perform, 4, sys_soundout + DEFDACBLKSIZE*ch,
                (*sp2)->s_vec, sys_soundout + DEFDACBLKSIZE*ch, DEFDACBLKSIZE);
    }    
}

static void dac_free(t_dac *x)
{
    freebytes(x->x_vec, x->x_n * sizeof(*x->x_vec));
}

static void dac_setup(void)
{
    dac_class = class_new(gensym("dac~"), (t_newmethod)dac_new,
        (t_method)dac_free, sizeof(t_dac), 0, A_GIMME, 0);
    CLASS_MAINSIGNALIN(dac_class, t_dac, x_f);
    class_addmethod(dac_class, (t_method)dac_dsp, gensym("dsp"), A_CANT, 0);
    class_sethelpsymbol(dac_class, gensym("adc~_dac~"));
}

/* ----------------------------- adc~ --------------------------- */
static t_class *adc_class;

typedef struct _adc
{
    t_object x_obj;
    t_int x_n;
    t_int *x_vec;
} t_adc;

static void *adc_new(t_symbol *s, int argc, t_atom *argv)
{
    t_adc *x = (t_adc *)pd_new(adc_class);
    t_atom defarg[2], *ap;
    int i;
    if (!argc)
    {
        argv = defarg;
        argc = 2;
        SETFLOAT(&defarg[0], 1);
        SETFLOAT(&defarg[1], 2);
    }
    x->x_n = argc;
    x->x_vec = (t_int *)getbytes(argc * sizeof(*x->x_vec));
    for (i = 0; i < argc; i++)
        x->x_vec[i] = atom_getintarg(i, argc, argv);
    for (i = 0; i < argc; i++)
        outlet_new(&x->x_obj, &s_signal);
    return (x);
}

t_int *copy_perform(t_int *w)
{
    t_sample *in1 = (t_sample *)(w[1]);
    t_sample *out = (t_sample *)(w[2]);
    int n = (int)(w[3]);
    while (n--) *out++ = *in1++; 
    return (w+4);
}

t_int *copy_perf8(t_int *w)
{
    t_sample *in1 = (t_sample *)(w[1]);
    t_sample *out = (t_sample *)(w[2]);
    int n = (int)(w[3]);
    
    for (; n; n -= 8, in1 += 8, out += 8)
    {
        t_sample f0 = in1[0];
        t_sample f1 = in1[1];
        t_sample f2 = in1[2];
        t_sample f3 = in1[3];
        t_sample f4 = in1[4];
        t_sample f5 = in1[5];
        t_sample f6 = in1[6];
        t_sample f7 = in1[7];

        out[0] = f0;
        out[1] = f1;
        out[2] = f2;
        out[3] = f3;
        out[4] = f4;
        out[5] = f5;
        out[6] = f6;
        out[7] = f7;
    }
    return (w+4);
}

void dsp_add_copy(t_sample *in, t_sample *out, int n)
{
    if (n&7)
        dsp_add(copy_perform, 3, in, out, n);
    else        
        dsp_add(copy_perf8, 3, in, out, n);
}

static void adc_dsp(t_adc *x, t_signal **sp)
{
    t_int i, *ip;
    t_signal **sp2;
    for (i = x->x_n, ip = x->x_vec, sp2 = sp; i--; ip++, sp2++)
    {
        int ch = *ip - 1;
        if ((*sp2)->s_n != DEFDACBLKSIZE)
            error("adc~: bad vector size");
        else if (ch >= 0 && ch < sys_get_inchannels())
            dsp_add_copy(sys_soundin + DEFDACBLKSIZE*ch,
                (*sp2)->s_vec, DEFDACBLKSIZE);
        else dsp_add_zero((*sp2)->s_vec, DEFDACBLKSIZE);
    }    
}

static void adc_free(t_adc *x)
{
    freebytes(x->x_vec, x->x_n * sizeof(*x->x_vec));
}

static void adc_setup(void)
{
    adc_class = class_new(gensym("adc~"), (t_newmethod)adc_new,
        (t_method)adc_free, sizeof(t_adc), 0, A_GIMME, 0);
    class_addmethod(adc_class, (t_method)adc_dsp, gensym("dsp"), A_CANT, 0);
    class_sethelpsymbol(adc_class, gensym("adc~_dac~"));
}

void d_dac_setup(void)
{
    dac_setup();
    adc_setup();
}