From faada59567f8cb252f4a909116595ce309ff5828 Mon Sep 17 00:00:00 2001 From: "N.N." Date: Fri, 23 May 2003 12:29:55 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r647, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/miXed/; revision=648 --- cyclone/sickle/kink.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 cyclone/sickle/kink.c (limited to 'cyclone/sickle/kink.c') diff --git a/cyclone/sickle/kink.c b/cyclone/sickle/kink.c new file mode 100644 index 0000000..86bc81d --- /dev/null +++ b/cyclone/sickle/kink.c @@ -0,0 +1,62 @@ +/* Copyright (c) 2002-2003 krzYszcz and others. + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + +/* CHECKED negative float in 2nd inlet: "illegal slope value %f", + but no complaints for signal input -- this is impossible in Pd. + The only thing we could do (and a bit stupid one) would be to + clock this exception out from the perf routine. */ + +#include "m_pd.h" +#include "sickle/sic.h" + +#define KINK_DEFSLOPE 1.0 + +typedef t_sic t_kink; +static t_class *kink_class; + +static t_int *kink_perform(t_int *w) +{ + int nblock = (int)(w[1]); + t_float *in1 = (t_float *)(w[2]); + t_float *in2 = (t_float *)(w[3]); + t_float *out = (t_float *)(w[4]); + while (nblock--) + { + float iph = *in1++; + float slope = *in2++; + float oph = iph * slope; + if (oph > .5) + { + slope = 1. / (slope + slope); /* x(y=.5) */ + if (slope == 1.) + *out++ = 0; /* CHECKED */ + else + *out++ = (iph - slope) / (2. - (slope + slope)) + .5; + } + else *out++ = oph; + } + return (w + 5); +} + +static void kink_dsp(t_kink *x, t_signal **sp) +{ + dsp_add(kink_perform, 4, sp[0]->s_n, + sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec); +} + +static void *kink_new(t_symbol *s, int ac, t_atom *av) +{ + t_kink *x = (t_kink *)pd_new(kink_class); + sic_inlet((t_sic *)x, 1, KINK_DEFSLOPE, 0, ac, av); + outlet_new((t_object *)x, &s_signal); + return (x); +} + +void kink_tilde_setup(void) +{ + kink_class = class_new(gensym("kink~"), + (t_newmethod)kink_new, 0, + sizeof(t_kink), 0, A_GIMME, 0); + sic_setup(kink_class, kink_dsp, SIC_FLOATTOSIGNAL); +} -- cgit v1.2.1