139 lines
3.4 KiB
C
139 lines
3.4 KiB
C
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#include <m_pd.h>
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#include <m_fixed.h>
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/* -------------------------- phasor~ ------------------------------ */
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static t_class *phasor_class;
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typedef struct _phasor
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{
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t_object x_obj;
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unsigned int x_phase;
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t_sample x_conv;
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t_sample x_f; /* scalar frequency */
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} t_phasor;
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static void *phasor_new(t_floatarg f)
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{
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t_phasor *x = (t_phasor *)pd_new(phasor_class);
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x->x_f = ftofix(f);
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inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
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x->x_phase = 0;
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x->x_conv = 0;
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outlet_new(&x->x_obj, gensym("signal"));
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return (x);
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}
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static t_int *phasor_perform(t_int *w)
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{
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t_phasor *x = (t_phasor *)(w[1]);
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t_sample *in = (t_sample *)(w[2]);
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t_sample *out = (t_sample *)(w[3]);
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int n = (int)(w[4]);
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unsigned int phase = x->x_phase;
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int conv = x->x_conv;
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while (n--) {
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phase+= mult(conv , (*in++));
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phase &= (itofix(1) - 1);
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*out++ = phase;
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}
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x->x_phase = phase;
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return (w+5);
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}
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static void phasor_dsp(t_phasor *x, t_signal **sp)
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{
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x->x_conv = ftofix(1000.)/sp[0]->s_sr;
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x->x_conv = mult(x->x_conv + 500,ftofix(0.001));
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dsp_add(phasor_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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static void phasor_ft1(t_phasor *x, t_float f)
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{
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x->x_phase = ftofix(f);
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}
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void phasor_tilde_setup(void)
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{
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phasor_class = class_new(gensym("phasor~"), (t_newmethod)phasor_new, 0,
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sizeof(t_phasor), 0, A_DEFFLOAT, 0);
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CLASS_MAINSIGNALIN(phasor_class, t_phasor, x_f);
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class_addmethod(phasor_class, (t_method)phasor_dsp, gensym("dsp"), 0);
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class_addmethod(phasor_class, (t_method)phasor_ft1,
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gensym("ft1"), A_FLOAT, 0);
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class_sethelpsymbol(phasor_class, gensym("osc~-help.pd"));
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}
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#include <m_pd.h>
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#include <m_fixed.h>
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/* -------------------------- phasor~ ------------------------------ */
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static t_class *phasor_class;
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typedef struct _phasor
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{
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t_object x_obj;
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unsigned int x_phase;
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t_sample x_conv;
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t_sample x_f; /* scalar frequency */
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} t_phasor;
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static void *phasor_new(t_floatarg f)
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{
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t_phasor *x = (t_phasor *)pd_new(phasor_class);
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x->x_f = ftofix(f);
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inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
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x->x_phase = 0;
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x->x_conv = 0;
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outlet_new(&x->x_obj, gensym("signal"));
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return (x);
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}
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static t_int *phasor_perform(t_int *w)
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{
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t_phasor *x = (t_phasor *)(w[1]);
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t_sample *in = (t_sample *)(w[2]);
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t_sample *out = (t_sample *)(w[3]);
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int n = (int)(w[4]);
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unsigned int phase = x->x_phase;
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int conv = x->x_conv;
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while (n--) {
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phase+= mult(conv , (*in++));
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phase &= (itofix(1) - 1);
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*out++ = phase;
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}
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x->x_phase = phase;
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return (w+5);
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}
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static void phasor_dsp(t_phasor *x, t_signal **sp)
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{
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x->x_conv = ftofix(1000.)/sp[0]->s_sr;
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x->x_conv = mult(x->x_conv + 500,ftofix(0.001));
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dsp_add(phasor_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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static void phasor_ft1(t_phasor *x, t_float f)
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{
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x->x_phase = ftofix(f);
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}
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void phasor_tilde_setup(void)
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{
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phasor_class = class_new(gensym("phasor~"), (t_newmethod)phasor_new, 0,
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sizeof(t_phasor), 0, A_DEFFLOAT, 0);
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CLASS_MAINSIGNALIN(phasor_class, t_phasor, x_f);
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class_addmethod(phasor_class, (t_method)phasor_dsp, gensym("dsp"), 0);
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class_addmethod(phasor_class, (t_method)phasor_ft1,
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gensym("ft1"), A_FLOAT, 0);
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class_sethelpsymbol(phasor_class, gensym("osc~-help.pd"));
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}
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