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| -rwxr-xr-x | wfold~.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/wfold~.c b/wfold~.c new file mode 100755 index 0000000..380c690 --- /dev/null +++ b/wfold~.c @@ -0,0 +1,77 @@ +#include "m_pd.h" +#include <math.h> + +static t_class *wfold_tilde_class; + +typedef struct _wfold_tilde { + t_object x_obj; + t_float threshold, reciprocal, remainder, remciprocal, mode, token, bipolar; +// t_float token, debug, safety; + t_outlet *folded; +} t_wfold_tilde; + +t_int *wfold_tilde_perform(t_int *w) { + t_wfold_tilde *x = (t_wfold_tilde *)(w[1]); + t_sample *in = (t_sample *)(w[2]); + t_sample *out = (t_sample *)(w[3]); + int n = (int)(w[4]); + t_float insample = 0; + + x->threshold = x->threshold > 0 ? x->threshold < 1 ? x->threshold : 0.5 : 0.5; + x->reciprocal = 1 / x->threshold; + x->remainder = 1 - x->threshold; + x->remciprocal = 1 / x->remainder; + + while (n--) + { + insample = *in++; + if(x->bipolar == 0) { + *out++ = insample < x->threshold ? insample * x->reciprocal : 1 - ((insample - x->threshold) * x->remciprocal); + } else if(x->bipolar != 0) { + *out++ = (insample < x->threshold ? insample * x->reciprocal : 1 - ((insample - x->threshold) * x->remciprocal)) * 2 - 1; + } + } + return (w+5); +} + +void wfold_tilde_bipolar(t_wfold_tilde *x, t_floatarg f) { + x->bipolar = f; +} + +void wfold_tilde_dsp(t_wfold_tilde *x, t_signal **sp) { + dsp_add(wfold_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); +} +/* +void wfold_tilde_mode(t_wfold_tilde *x, t_floatarg f) { + x->mode = f; +} */ + +void *wfold_tilde_new(t_floatarg f) { + t_wfold_tilde *x = (t_wfold_tilde *)pd_new(wfold_tilde_class); + + x->threshold = f > 0 ? f < 1 ? f : 0.5 : 0.5; + x->reciprocal = 1 / x->threshold; + x->remainder = 1 - x->threshold; + x->remciprocal = 1 / x->remainder; + +// inlet_new (&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal); + floatinlet_new (&x->x_obj, &x->threshold); + outlet_new(&x->x_obj, &s_signal); + return (void *)x; +} + +void wfold_tilde_setup(void) { + wfold_tilde_class = class_new(gensym("wfold~"), + (t_newmethod)wfold_tilde_new, + 0, sizeof(t_wfold_tilde), + CLASS_DEFAULT, A_DEFFLOAT, 0); + + post("~~~~~~~~~~~~~~~>wfold~"); + post("~~~>by Ed Kelly, 2012"); + + class_addmethod(wfold_tilde_class, + (t_method)wfold_tilde_dsp, gensym("dsp"), 0); + CLASS_MAINSIGNALIN(wfold_tilde_class, t_wfold_tilde, token); + class_addmethod(wfold_tilde_class, (t_method)wfold_tilde_bipolar, gensym("bipolar"), A_DEFFLOAT, 0); + // class_addmethod(wfold_tilde_class, (t_method)wfold_tilde_mode, gensym("mode"), A_DEFFLOAT, 0); +} |