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/deltaclip.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 cyclone/sickle/deltaclip.c (limited to 'cyclone/sickle/deltaclip.c') diff --git a/cyclone/sickle/deltaclip.c b/cyclone/sickle/deltaclip.c new file mode 100644 index 0000000..89c9321 --- /dev/null +++ b/cyclone/sickle/deltaclip.c @@ -0,0 +1,67 @@ +/* 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 "m_pd.h" +#include "shared.h" +#include "sickle/sic.h" + +#define DELTACLIP_DEFLO 0. +#define DELTACLIP_DEFHI 0. + +typedef struct _deltaclip +{ + t_sic x_sic; + t_float x_last; +} t_deltaclip; + +static t_class *deltaclip_class; + +static t_int *deltaclip_perform(t_int *w) +{ + t_deltaclip *x = (t_deltaclip *)(w[1]); + int nblock = (int)(w[2]); + t_float *in1 = (t_float *)(w[3]); + t_float *in2 = (t_float *)(w[4]); + t_float *in3 = (t_float *)(w[5]); + t_float *out = (t_float *)(w[6]); + t_float last = x->x_last; + while (nblock--) + { + float f = *in1++; + float delta = f - last; + float lo = *in2++; + float hi = *in3++; + if (delta < lo) + f = last + lo; + else if (delta > hi) + f = last + hi; + *out++ = last = f; + } + x->x_last = last; + return (w + 7); +} + +static void deltaclip_dsp(t_deltaclip *x, t_signal **sp) +{ + dsp_add(deltaclip_perform, 6, x, sp[0]->s_n, + sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec); +} + +static void *deltaclip_new(t_symbol *s, int ac, t_atom *av) +{ + t_deltaclip *x = (t_deltaclip *)pd_new(deltaclip_class); + sic_inlet((t_sic *)x, 1, DELTACLIP_DEFLO, 0, ac, av); + sic_inlet((t_sic *)x, 2, DELTACLIP_DEFHI, 1, ac, av); + outlet_new((t_object *)x, &s_signal); + x->x_last = 0; + return (x); +} + +void deltaclip_tilde_setup(void) +{ + deltaclip_class = class_new(gensym("deltaclip~"), + (t_newmethod)deltaclip_new, 0, + sizeof(t_deltaclip), 0, A_GIMME, 0); + sic_setup(deltaclip_class, deltaclip_dsp, SIC_FLOATTOSIGNAL); +} -- cgit v1.2.1