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/atanh.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 cyclone/sickle/atanh.c (limited to 'cyclone/sickle/atanh.c') diff --git a/cyclone/sickle/atanh.c b/cyclone/sickle/atanh.c new file mode 100644 index 0000000..464f955 --- /dev/null +++ b/cyclone/sickle/atanh.c @@ -0,0 +1,48 @@ +/* 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. */ + +#include +#include "m_pd.h" +#include "sickle/sic.h" + +/* LATER ask about osx */ +#if defined(NT) || defined(MACOSX) +#define atanhf(x) (log((1 + x) / (1 - x)) * 0.5) +#endif + +typedef t_sic t_atanh; +static t_class *atanh_class; + +static t_int *atanh_perform(t_int *w) +{ + int nblock = (int)(w[1]); + t_float *in = (t_float *)(w[2]); + t_float *out = (t_float *)(w[3]); + while (nblock--) + { + float f = *in++; + *out++ = atanhf(f); /* CHECKME no protection against NaNs */ + } + return (w + 4); +} + +static void atanh_dsp(t_atanh *x, t_signal **sp) +{ + dsp_add(atanh_perform, 3, sp[0]->s_n, sp[0]->s_vec, sp[1]->s_vec); +} + +static void *atanh_new(void) +{ + t_atanh *x = (t_atanh *)pd_new(atanh_class); + outlet_new((t_object *)x, &s_signal); + return (x); +} + +void atanh_tilde_setup(void) +{ + atanh_class = class_new(gensym("atanh~"), + (t_newmethod)atanh_new, 0, + sizeof(t_atanh), 0, 0); + sic_setup(atanh_class, atanh_dsp, SIC_FLOATTOSIGNAL); +} -- cgit v1.2.1