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 @@ + +#include <m_pd.h> +#include <m_fixed.h> +#include "cos_table.h" + +/* ------------------------ cos~ ----------------------------- */ +#define FRAC ((1<<(fix1-ILOGCOSTABSIZE))-1) + +static t_class *cos_class; + +typedef struct _cos +{ + t_object x_obj; + float x_f; +} t_cos; + +static void *cos_new(void) +{ + t_cos *x = (t_cos *)pd_new(cos_class); + outlet_new(&x->x_obj, gensym("signal")); + x->x_f = 0; + return (x); +} + +static t_int *cos_perform(t_int *w) +{ + t_sample *in = (t_sample *)(w[1]); + t_sample *out = (t_sample *)(w[2]); + int n = (int)(w[3]); + t_sample *tab = cos_table; + int off; + int frac; + unsigned int phase; + + while (n--) { + phase = *in++; + phase &= ((1<<fix1)-1); + off = fixtoi((long long)phase<<ILOGCOSTABSIZE); + + frac = phase&(itofix(1)-1); + *out = mult(*(tab + off),itofix(1) - frac) + + mult(*(tab + off + 1),frac); + out++; + } + return (w+4); +} + +static void cos_dsp(t_cos *x, t_signal **sp) +{ + dsp_add(cos_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); +} + + +void cos_tilde_setup(void) +{ + cos_class = class_new(gensym("cos~"), (t_newmethod)cos_new, 0, + sizeof(t_cos), 0, A_DEFFLOAT, 0); + CLASS_MAINSIGNALIN(cos_class, t_cos, x_f); + class_addmethod(cos_class, (t_method)cos_dsp, gensym("dsp"), 0); + class_sethelpsymbol(cos_class, gensym("osc~-help.pd")); +} + +#include <m_pd.h> +#include <m_fixed.h> +#include "cos_table.h" + +/* ------------------------ cos~ ----------------------------- */ +#define FRAC ((1<<(fix1-ILOGCOSTABSIZE))-1) + +static t_class *cos_class; + +typedef struct _cos +{ + t_object x_obj; + float x_f; +} t_cos; + +static void *cos_new(void) +{ + t_cos *x = (t_cos *)pd_new(cos_class); + outlet_new(&x->x_obj, gensym("signal")); + x->x_f = 0; + return (x); +} + +static t_int *cos_perform(t_int *w) +{ + t_sample *in = (t_sample *)(w[1]); + t_sample *out = (t_sample *)(w[2]); + int n = (int)(w[3]); + t_sample *tab = cos_table; + int off; + int frac; + unsigned int phase; + + while (n--) { + phase = *in++; + phase &= ((1<<fix1)-1); + off = fixtoi((long long)phase<<ILOGCOSTABSIZE); + + frac = phase&(itofix(1)-1); + *out = mult(*(tab + off),itofix(1) - frac) + + mult(*(tab + off + 1),frac); + out++; + } + return (w+4); +} + +static void cos_dsp(t_cos *x, t_signal **sp) +{ + dsp_add(cos_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); +} + + +void cos_tilde_setup(void) +{ + cos_class = class_new(gensym("cos~"), (t_newmethod)cos_new, 0, + sizeof(t_cos), 0, A_DEFFLOAT, 0); + CLASS_MAINSIGNALIN(cos_class, t_cos, x_f); + class_addmethod(cos_class, (t_method)cos_dsp, gensym("dsp"), 0); + class_sethelpsymbol(cos_class, gensym("osc~-help.pd")); +} |