diff options
author | N.N. <krzyszcz@users.sourceforge.net> | 2003-05-23 12:29:55 +0000 |
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committer | N.N. <krzyszcz@users.sourceforge.net> | 2003-05-23 12:29:55 +0000 |
commit | faada59567f8cb252f4a909116595ce309ff5828 (patch) | |
tree | 5874954c6f2d5392d921208e49a45ef266beeb7f /cyclone/sickle/acosh.c |
This commit was generated by cvs2svn to compensate for changes in r647,svn2git-root
which included commits to RCS files with non-trunk default branches.
svn path=/trunk/externals/miXed/; revision=648
Diffstat (limited to 'cyclone/sickle/acosh.c')
-rw-r--r-- | cyclone/sickle/acosh.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/cyclone/sickle/acosh.c b/cyclone/sickle/acosh.c new file mode 100644 index 0000000..392ad97 --- /dev/null +++ b/cyclone/sickle/acosh.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 <math.h> +#include "m_pd.h" +#include "sickle/sic.h" + +/* LATER ask about osx */ +#if defined(NT) || defined(MACOSX) +#define acoshf(x) (log(x + sqrt(x * x - 1))) +#endif + +typedef t_sic t_acosh; +static t_class *acosh_class; + +static t_int *acosh_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++ = acoshf(f); /* CHECKME no protection against NaNs */ + } + return (w + 4); +} + +static void acosh_dsp(t_acosh *x, t_signal **sp) +{ + dsp_add(acosh_perform, 3, sp[0]->s_n, sp[0]->s_vec, sp[1]->s_vec); +} + +static void *acosh_new(void) +{ + t_acosh *x = (t_acosh *)pd_new(acosh_class); + outlet_new((t_object *)x, &s_signal); + return (x); +} + +void acosh_tilde_setup(void) +{ + acosh_class = class_new(gensym("acosh~"), + (t_newmethod)acosh_new, 0, + sizeof(t_acosh), 0, 0); + sic_setup(acosh_class, acosh_dsp, SIC_FLOATTOSIGNAL); +} |