diff options
author | musil <tmusil@users.sourceforge.net> | 2006-12-09 02:00:52 +0000 |
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committer | musil <tmusil@users.sourceforge.net> | 2006-12-09 02:00:52 +0000 |
commit | d6b088044e161a27d49df537bbb6d998a8d0e50d (patch) | |
tree | 1a1b3a30e994767f4ef97b90194782258f2baa8a /iemlib1/src/iem_pow4~.c | |
parent | 32dc0c0deb13ce57f099f616ddc427296970d8a5 (diff) |
// class_sethelpsymbol();
changed help-*.pd to *-help.pd
chanded file structure to standard
1st step remove old
svn path=/trunk/externals/iemlib/; revision=6756
Diffstat (limited to 'iemlib1/src/iem_pow4~.c')
-rw-r--r-- | iemlib1/src/iem_pow4~.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/iemlib1/src/iem_pow4~.c b/iemlib1/src/iem_pow4~.c new file mode 100644 index 0000000..838ed5f --- /dev/null +++ b/iemlib1/src/iem_pow4~.c @@ -0,0 +1,78 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */ + +#include "m_pd.h" +#include "iemlib.h" +#include <math.h> + +/* ------------------------ iem_pow4~ ----------------------------- */ + +static t_class *iem_pow4_tilde_class; + +typedef struct _iem_pow4_tilde +{ + t_object x_obj; + t_float x_exp; + t_float x_msi; +} t_iem_pow4_tilde; + +static void iem_pow4_tilde_ft1(t_iem_pow4_tilde *x, t_floatarg f) +{ + x->x_exp = f; +} + +static t_int *iem_pow4_tilde_perform(t_int *w) +{ + t_float *in = (t_float *)(w[1]); + t_float *out = (t_float *)(w[2]); + t_iem_pow4_tilde *x = (t_iem_pow4_tilde *)(w[3]); + t_float y=x->x_exp; + t_float f, g; + int n = (int)(w[4])/4; + + while (n--) + { + f = *in; + if(f < 0.01f) + f = 0.01f; + else if(f > 1000.0f) + f = 1000.0f; + g = log(f); + f = exp(g*y); + *out++ = f; + *out++ = f; + *out++ = f; + *out++ = f; + in += 4; + } + return (w+5); +} + +static void iem_pow4_tilde_dsp(t_iem_pow4_tilde *x, t_signal **sp) +{ + dsp_add(iem_pow4_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n); +} + +static void *iem_pow4_tilde_new(t_floatarg f) +{ + t_iem_pow4_tilde *x = (t_iem_pow4_tilde *)pd_new(iem_pow4_tilde_class); + + x->x_exp = f; + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1")); + outlet_new(&x->x_obj, gensym("signal")); + x->x_msi = 0; + return (x); +} + +void iem_pow4_tilde_setup(void) +{ + iem_pow4_tilde_class = class_new(gensym("iem_pow4~"), (t_newmethod)iem_pow4_tilde_new, 0, + sizeof(t_iem_pow4_tilde), 0, A_DEFFLOAT, 0); + class_addcreator((t_newmethod)iem_pow4_tilde_new, gensym("icot~"), 0); + CLASS_MAINSIGNALIN(iem_pow4_tilde_class, t_iem_pow4_tilde, x_msi); + class_addmethod(iem_pow4_tilde_class, (t_method)iem_pow4_tilde_dsp, gensym("dsp"), 0); + class_addmethod(iem_pow4_tilde_class, (t_method)iem_pow4_tilde_ft1, gensym("ft1"), A_FLOAT, 0); +// class_sethelpsymbol(iem_pow4_tilde_class, gensym("iemhelp/help-iem_pow4~")); +} |