From 086e6b358ad45bda0e6a948cfb7ea2d33ab7da5a Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Wed, 10 Feb 2010 00:34:05 +0000 Subject: re-arranged into libdir and setup with the template Makefile+debian stuff. renabled vv+ and vv- as vvplus and vvminus svn path=/trunk/externals/smlib/; revision=13158 --- vrmstodb.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 vrmstodb.c (limited to 'vrmstodb.c') diff --git a/vrmstodb.c b/vrmstodb.c new file mode 100644 index 0000000..d375bf9 --- /dev/null +++ b/vrmstodb.c @@ -0,0 +1,54 @@ +#include "defines.h" + +/*--------------- vrmstodb ----------------*/ + +static t_class *vrmstodb_class; + +typedef struct _vrmstodb +{ + t_object x_obj; +} t_vrmstodb; + +float rmstodb(float f) +{ + if (f <= 0) return (0); + else + { + float val = (float)(100 + 20./LOGTEN * log(f)); + return (val < 0 ? 0 : val); + } +} + +static void vrmstodb_perform(t_vrmstodb *x, t_symbol *s, int argc, t_atom *argv) +{ + int i; + t_atom *ap,*app; + ap = (t_atom *)getbytes(sizeof(t_atom)*argc); + app=ap; + + for (i = 0; i < argc; i++) + { + SETFLOAT(app, rmstodb(atom_getfloat(argv++))); + app++; + } + outlet_list(x->x_obj.ob_outlet,gensym("list"),argc,ap); + freebytes(ap,argc); +} + +static void *vrmstodb_new() +{ + t_vrmstodb *x=(t_vrmstodb *)pd_new(vrmstodb_class); + outlet_new(&x->x_obj, gensym("list")); + return (void *)x; +} + +void vrmstodb_setup(void) +{ + vrmstodb_class = class_new(gensym("vrmstodb"), + (t_newmethod)vrmstodb_new, 0, + sizeof(t_vrmstodb), + CLASS_DEFAULT, + 0); + class_addlist(vrmstodb_class, (t_method)vrmstodb_perform); +} + -- cgit v1.2.1