diff options
Diffstat (limited to 'apps/plugins/pdbox/PDa/intern/cos~.c')
-rw-r--r-- | apps/plugins/pdbox/PDa/intern/cos~.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/apps/plugins/pdbox/PDa/intern/cos~.c b/apps/plugins/pdbox/PDa/intern/cos~.c new file mode 100644 index 0000000000..30ec4e49a7 --- /dev/null +++ b/apps/plugins/pdbox/PDa/intern/cos~.c | |||
@@ -0,0 +1,122 @@ | |||
1 | |||
2 | #include <m_pd.h> | ||
3 | #include <m_fixed.h> | ||
4 | #include "cos_table.h" | ||
5 | |||
6 | /* ------------------------ cos~ ----------------------------- */ | ||
7 | #define FRAC ((1<<(fix1-ILOGCOSTABSIZE))-1) | ||
8 | |||
9 | static t_class *cos_class; | ||
10 | |||
11 | typedef struct _cos | ||
12 | { | ||
13 | t_object x_obj; | ||
14 | float x_f; | ||
15 | } t_cos; | ||
16 | |||
17 | static void *cos_new(void) | ||
18 | { | ||
19 | t_cos *x = (t_cos *)pd_new(cos_class); | ||
20 | outlet_new(&x->x_obj, gensym("signal")); | ||
21 | x->x_f = 0; | ||
22 | return (x); | ||
23 | } | ||
24 | |||
25 | static t_int *cos_perform(t_int *w) | ||
26 | { | ||
27 | t_sample *in = (t_sample *)(w[1]); | ||
28 | t_sample *out = (t_sample *)(w[2]); | ||
29 | int n = (int)(w[3]); | ||
30 | t_sample *tab = cos_table; | ||
31 | int off; | ||
32 | int frac; | ||
33 | unsigned int phase; | ||
34 | |||
35 | while (n--) { | ||
36 | phase = *in++; | ||
37 | phase &= ((1<<fix1)-1); | ||
38 | off = fixtoi((long long)phase<<ILOGCOSTABSIZE); | ||
39 | |||
40 | frac = phase&(itofix(1)-1); | ||
41 | *out = mult(*(tab + off),itofix(1) - frac) + | ||
42 | mult(*(tab + off + 1),frac); | ||
43 | out++; | ||
44 | } | ||
45 | return (w+4); | ||
46 | } | ||
47 | |||
48 | static void cos_dsp(t_cos *x, t_signal **sp) | ||
49 | { | ||
50 | dsp_add(cos_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); | ||
51 | } | ||
52 | |||
53 | |||
54 | void cos_tilde_setup(void) | ||
55 | { | ||
56 | cos_class = class_new(gensym("cos~"), (t_newmethod)cos_new, 0, | ||
57 | sizeof(t_cos), 0, A_DEFFLOAT, 0); | ||
58 | CLASS_MAINSIGNALIN(cos_class, t_cos, x_f); | ||
59 | class_addmethod(cos_class, (t_method)cos_dsp, gensym("dsp"), 0); | ||
60 | class_sethelpsymbol(cos_class, gensym("osc~-help.pd")); | ||
61 | } | ||
62 | |||
63 | #include <m_pd.h> | ||
64 | #include <m_fixed.h> | ||
65 | #include "cos_table.h" | ||
66 | |||
67 | /* ------------------------ cos~ ----------------------------- */ | ||
68 | #define FRAC ((1<<(fix1-ILOGCOSTABSIZE))-1) | ||
69 | |||
70 | static t_class *cos_class; | ||
71 | |||
72 | typedef struct _cos | ||
73 | { | ||
74 | t_object x_obj; | ||
75 | float x_f; | ||
76 | } t_cos; | ||
77 | |||
78 | static void *cos_new(void) | ||
79 | { | ||
80 | t_cos *x = (t_cos *)pd_new(cos_class); | ||
81 | outlet_new(&x->x_obj, gensym("signal")); | ||
82 | x->x_f = 0; | ||
83 | return (x); | ||
84 | } | ||
85 | |||
86 | static t_int *cos_perform(t_int *w) | ||
87 | { | ||
88 | t_sample *in = (t_sample *)(w[1]); | ||
89 | t_sample *out = (t_sample *)(w[2]); | ||
90 | int n = (int)(w[3]); | ||
91 | t_sample *tab = cos_table; | ||
92 | int off; | ||
93 | int frac; | ||
94 | unsigned int phase; | ||
95 | |||
96 | while (n--) { | ||
97 | phase = *in++; | ||
98 | phase &= ((1<<fix1)-1); | ||
99 | off = fixtoi((long long)phase<<ILOGCOSTABSIZE); | ||
100 | |||
101 | frac = phase&(itofix(1)-1); | ||
102 | *out = mult(*(tab + off),itofix(1) - frac) + | ||
103 | mult(*(tab + off + 1),frac); | ||
104 | out++; | ||
105 | } | ||
106 | return (w+4); | ||
107 | } | ||
108 | |||
109 | static void cos_dsp(t_cos *x, t_signal **sp) | ||
110 | { | ||
111 | dsp_add(cos_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); | ||
112 | } | ||
113 | |||
114 | |||
115 | void cos_tilde_setup(void) | ||
116 | { | ||
117 | cos_class = class_new(gensym("cos~"), (t_newmethod)cos_new, 0, | ||
118 | sizeof(t_cos), 0, A_DEFFLOAT, 0); | ||
119 | CLASS_MAINSIGNALIN(cos_class, t_cos, x_f); | ||
120 | class_addmethod(cos_class, (t_method)cos_dsp, gensym("dsp"), 0); | ||
121 | class_sethelpsymbol(cos_class, gensym("osc~-help.pd")); | ||
122 | } | ||