mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-11-15 08:02:34 -05:00
Cut the files in half and it might work better (note to self: check your tree is really clean before patching)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21070 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Peter D'Hoye
parent
4f2dfcc01b
commit
526b5580da
192 changed files with 20 additions and 69133 deletions
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@ -571,576 +571,3 @@ void d_math_setup(void)
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class_sethelpsymbol(powtodb_tilde_class, s);
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}
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/* Copyright (c) 1997-2001 Miller Puckette and others.
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* For information on usage and redistribution, and for a DISCLAIMER OF ALL
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* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
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/* mathematical functions and other transfer functions, including tilde
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versions of stuff from x_acoustics.c.
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*/
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#include "m_pd.h"
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#include <math.h>
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#define LOGTEN 2.302585092994
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/* ------------------------- clip~ -------------------------- */
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static t_class *clip_class;
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typedef struct _clip
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{
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t_object x_obj;
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float x_f;
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t_sample x_lo;
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t_sample x_hi;
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} t_clip;
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static void *clip_new(t_floatarg lo, t_floatarg hi)
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{
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t_clip *x = (t_clip *)pd_new(clip_class);
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x->x_lo = lo;
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x->x_hi = hi;
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outlet_new(&x->x_obj, gensym("signal"));
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floatinlet_new(&x->x_obj, &x->x_lo);
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floatinlet_new(&x->x_obj, &x->x_hi);
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x->x_f = 0;
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return (x);
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}
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static t_int *clip_perform(t_int *w)
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{
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t_clip *x = (t_clip *)(w[1]);
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t_float *in = (t_float *)(w[2]);
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t_float *out = (t_float *)(w[3]);
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int n = (int)(w[4]);
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while (n--)
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{
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float f = *in++;
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if (f < x->x_lo) f = x->x_lo;
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if (f > x->x_hi) f = x->x_hi;
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*out++ = f;
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}
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return (w+5);
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}
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static void clip_dsp(t_clip *x, t_signal **sp)
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{
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dsp_add(clip_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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static void clip_setup(void)
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{
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clip_class = class_new(gensym("clip~"), (t_newmethod)clip_new, 0,
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sizeof(t_clip), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
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CLASS_MAINSIGNALIN(clip_class, t_clip, x_f);
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class_addmethod(clip_class, (t_method)clip_dsp, gensym("dsp"), 0);
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}
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/* sigrsqrt - reciprocal square root good to 8 mantissa bits */
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#define DUMTAB1SIZE 256
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#define DUMTAB2SIZE 1024
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static float rsqrt_exptab[DUMTAB1SIZE], rsqrt_mantissatab[DUMTAB2SIZE];
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static void init_rsqrt(void)
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{
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int i;
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for (i = 0; i < DUMTAB1SIZE; i++)
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{
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float f;
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long l = (i ? (i == DUMTAB1SIZE-1 ? DUMTAB1SIZE-2 : i) : 1)<< 23;
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*(long *)(&f) = l;
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rsqrt_exptab[i] = 1./sqrt(f);
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}
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for (i = 0; i < DUMTAB2SIZE; i++)
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{
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float f = 1 + (1./DUMTAB2SIZE) * i;
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rsqrt_mantissatab[i] = 1./sqrt(f);
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}
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}
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/* these are used in externs like "bonk" */
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float q8_rsqrt(float f)
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{
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long l = *(long *)(&f);
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if (f < 0) return (0);
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else return (rsqrt_exptab[(l >> 23) & 0xff] *
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rsqrt_mantissatab[(l >> 13) & 0x3ff]);
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}
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float q8_sqrt(float f)
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{
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long l = *(long *)(&f);
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if (f < 0) return (0);
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else return (f * rsqrt_exptab[(l >> 23) & 0xff] *
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rsqrt_mantissatab[(l >> 13) & 0x3ff]);
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}
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/* the old names are OK unless we're in IRIX N32 */
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#ifndef N32
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float qsqrt(float f) {return (q8_sqrt(f)); }
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float qrsqrt(float f) {return (q8_rsqrt(f)); }
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#endif
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typedef struct sigrsqrt
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{
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t_object x_obj;
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float x_f;
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} t_sigrsqrt;
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static t_class *sigrsqrt_class;
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static void *sigrsqrt_new(void)
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{
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t_sigrsqrt *x = (t_sigrsqrt *)pd_new(sigrsqrt_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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static t_int *sigrsqrt_perform(t_int *w)
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{
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float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
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t_int n = *(t_int *)(w+3);
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while (n--)
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{
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float f = *in;
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long l = *(long *)(in++);
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if (f < 0) *out++ = 0;
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else
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{
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float g = rsqrt_exptab[(l >> 23) & 0xff] *
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rsqrt_mantissatab[(l >> 13) & 0x3ff];
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*out++ = 1.5 * g - 0.5 * g * g * g * f;
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}
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}
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return (w + 4);
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}
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static void sigrsqrt_dsp(t_sigrsqrt *x, t_signal **sp)
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{
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dsp_add(sigrsqrt_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void sigrsqrt_setup(void)
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{
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init_rsqrt();
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sigrsqrt_class = class_new(gensym("rsqrt~"), (t_newmethod)sigrsqrt_new, 0,
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sizeof(t_sigrsqrt), 0, 0);
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/* an old name for it: */
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class_addcreator(sigrsqrt_new, gensym("q8_rsqrt~"), 0);
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CLASS_MAINSIGNALIN(sigrsqrt_class, t_sigrsqrt, x_f);
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class_addmethod(sigrsqrt_class, (t_method)sigrsqrt_dsp, gensym("dsp"), 0);
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}
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/* sigsqrt - square root good to 8 mantissa bits */
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typedef struct sigsqrt
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{
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t_object x_obj;
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float x_f;
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} t_sigsqrt;
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static t_class *sigsqrt_class;
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static void *sigsqrt_new(void)
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{
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t_sigsqrt *x = (t_sigsqrt *)pd_new(sigsqrt_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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t_int *sigsqrt_perform(t_int *w) /* not static; also used in d_fft.c */
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{
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float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
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t_int n = *(t_int *)(w+3);
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while (n--)
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{
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float f = *in;
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long l = *(long *)(in++);
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if (f < 0) *out++ = 0;
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else
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{
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float g = rsqrt_exptab[(l >> 23) & 0xff] *
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rsqrt_mantissatab[(l >> 13) & 0x3ff];
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*out++ = f * (1.5 * g - 0.5 * g * g * g * f);
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}
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}
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return (w + 4);
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}
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static void sigsqrt_dsp(t_sigsqrt *x, t_signal **sp)
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{
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dsp_add(sigsqrt_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void sigsqrt_setup(void)
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{
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sigsqrt_class = class_new(gensym("sqrt~"), (t_newmethod)sigsqrt_new, 0,
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sizeof(t_sigsqrt), 0, 0);
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class_addcreator(sigsqrt_new, gensym("q8_sqrt~"), 0); /* old name */
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CLASS_MAINSIGNALIN(sigsqrt_class, t_sigsqrt, x_f);
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class_addmethod(sigsqrt_class, (t_method)sigsqrt_dsp, gensym("dsp"), 0);
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}
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/* ------------------------------ wrap~ -------------------------- */
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typedef struct wrap
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{
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t_object x_obj;
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float x_f;
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} t_sigwrap;
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t_class *sigwrap_class;
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static void *sigwrap_new(void)
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{
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t_sigwrap *x = (t_sigwrap *)pd_new(sigwrap_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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static t_int *sigwrap_perform(t_int *w)
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{
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float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
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t_int n = *(t_int *)(w+3);
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while (n--)
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{
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float f = *in++;
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int k = f;
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if (f > 0) *out++ = f-k;
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else *out++ = f - (k-1);
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}
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return (w + 4);
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}
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static void sigwrap_dsp(t_sigwrap *x, t_signal **sp)
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{
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dsp_add(sigwrap_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void sigwrap_setup(void)
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{
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sigwrap_class = class_new(gensym("wrap~"), (t_newmethod)sigwrap_new, 0,
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sizeof(t_sigwrap), 0, 0);
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CLASS_MAINSIGNALIN(sigwrap_class, t_sigwrap, x_f);
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class_addmethod(sigwrap_class, (t_method)sigwrap_dsp, gensym("dsp"), 0);
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}
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/* ------------------------------ mtof_tilde~ -------------------------- */
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typedef struct mtof_tilde
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{
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t_object x_obj;
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float x_f;
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} t_mtof_tilde;
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t_class *mtof_tilde_class;
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static void *mtof_tilde_new(void)
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{
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t_mtof_tilde *x = (t_mtof_tilde *)pd_new(mtof_tilde_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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static t_int *mtof_tilde_perform(t_int *w)
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{
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float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
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t_int n = *(t_int *)(w+3);
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for (; n--; in++, out++)
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{
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float f = *in;
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if (f <= -1500) *out = 0;
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else
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{
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if (f > 1499) f = 1499;
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*out = 8.17579891564 * exp(.0577622650 * f);
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}
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}
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return (w + 4);
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}
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static void mtof_tilde_dsp(t_mtof_tilde *x, t_signal **sp)
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{
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dsp_add(mtof_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void mtof_tilde_setup(void)
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{
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mtof_tilde_class = class_new(gensym("mtof~"), (t_newmethod)mtof_tilde_new, 0,
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sizeof(t_mtof_tilde), 0, 0);
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CLASS_MAINSIGNALIN(mtof_tilde_class, t_mtof_tilde, x_f);
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class_addmethod(mtof_tilde_class, (t_method)mtof_tilde_dsp, gensym("dsp"), 0);
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}
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/* ------------------------------ ftom_tilde~ -------------------------- */
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typedef struct ftom_tilde
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{
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t_object x_obj;
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float x_f;
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} t_ftom_tilde;
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t_class *ftom_tilde_class;
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static void *ftom_tilde_new(void)
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{
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t_ftom_tilde *x = (t_ftom_tilde *)pd_new(ftom_tilde_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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static t_int *ftom_tilde_perform(t_int *w)
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{
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float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
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t_int n = *(t_int *)(w+3);
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for (; n--; *in++, out++)
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{
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float f = *in;
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*out = (f > 0 ? 17.3123405046 * log(.12231220585 * f) : -1500);
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}
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return (w + 4);
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}
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static void ftom_tilde_dsp(t_ftom_tilde *x, t_signal **sp)
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{
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dsp_add(ftom_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void ftom_tilde_setup(void)
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{
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ftom_tilde_class = class_new(gensym("ftom~"), (t_newmethod)ftom_tilde_new, 0,
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sizeof(t_ftom_tilde), 0, 0);
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CLASS_MAINSIGNALIN(ftom_tilde_class, t_ftom_tilde, x_f);
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class_addmethod(ftom_tilde_class, (t_method)ftom_tilde_dsp, gensym("dsp"), 0);
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}
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/* ------------------------------ dbtorms~ -------------------------- */
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typedef struct dbtorms_tilde
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{
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t_object x_obj;
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float x_f;
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} t_dbtorms_tilde;
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t_class *dbtorms_tilde_class;
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static void *dbtorms_tilde_new(void)
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{
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t_dbtorms_tilde *x = (t_dbtorms_tilde *)pd_new(dbtorms_tilde_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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static t_int *dbtorms_tilde_perform(t_int *w)
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{
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float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
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t_int n = *(t_int *)(w+3);
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for (; n--; in++, out++)
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{
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float f = *in;
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if (f <= 0) *out = 0;
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else
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{
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if (f > 485)
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f = 485;
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*out = exp((LOGTEN * 0.05) * (f-100.));
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}
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}
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return (w + 4);
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}
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static void dbtorms_tilde_dsp(t_dbtorms_tilde *x, t_signal **sp)
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{
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dsp_add(dbtorms_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void dbtorms_tilde_setup(void)
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{
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dbtorms_tilde_class = class_new(gensym("dbtorms~"), (t_newmethod)dbtorms_tilde_new, 0,
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sizeof(t_dbtorms_tilde), 0, 0);
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CLASS_MAINSIGNALIN(dbtorms_tilde_class, t_dbtorms_tilde, x_f);
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class_addmethod(dbtorms_tilde_class, (t_method)dbtorms_tilde_dsp, gensym("dsp"), 0);
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}
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/* ------------------------------ rmstodb~ -------------------------- */
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typedef struct rmstodb_tilde
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{
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t_object x_obj;
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float x_f;
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} t_rmstodb_tilde;
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t_class *rmstodb_tilde_class;
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static void *rmstodb_tilde_new(void)
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{
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t_rmstodb_tilde *x = (t_rmstodb_tilde *)pd_new(rmstodb_tilde_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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static t_int *rmstodb_tilde_perform(t_int *w)
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{
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float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
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t_int n = *(t_int *)(w+3);
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for (; n--; in++, out++)
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{
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float f = *in;
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if (f <= 0) *out = 0;
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else
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{
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float g = 100 + 20./LOGTEN * log(f);
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*out = (g < 0 ? 0 : g);
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}
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}
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return (w + 4);
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}
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static void rmstodb_tilde_dsp(t_rmstodb_tilde *x, t_signal **sp)
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{
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dsp_add(rmstodb_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void rmstodb_tilde_setup(void)
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{
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rmstodb_tilde_class = class_new(gensym("rmstodb~"), (t_newmethod)rmstodb_tilde_new, 0,
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sizeof(t_rmstodb_tilde), 0, 0);
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CLASS_MAINSIGNALIN(rmstodb_tilde_class, t_rmstodb_tilde, x_f);
|
||||
class_addmethod(rmstodb_tilde_class, (t_method)rmstodb_tilde_dsp, gensym("dsp"), 0);
|
||||
}
|
||||
|
||||
/* ------------------------------ dbtopow~ -------------------------- */
|
||||
|
||||
typedef struct dbtopow_tilde
|
||||
{
|
||||
t_object x_obj;
|
||||
float x_f;
|
||||
} t_dbtopow_tilde;
|
||||
|
||||
t_class *dbtopow_tilde_class;
|
||||
|
||||
static void *dbtopow_tilde_new(void)
|
||||
{
|
||||
t_dbtopow_tilde *x = (t_dbtopow_tilde *)pd_new(dbtopow_tilde_class);
|
||||
outlet_new(&x->x_obj, gensym("signal"));
|
||||
x->x_f = 0;
|
||||
return (x);
|
||||
}
|
||||
|
||||
static t_int *dbtopow_tilde_perform(t_int *w)
|
||||
{
|
||||
float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
|
||||
t_int n = *(t_int *)(w+3);
|
||||
for (; n--; in++, out++)
|
||||
{
|
||||
float f = *in;
|
||||
if (f <= 0) *out = 0;
|
||||
else
|
||||
{
|
||||
if (f > 870)
|
||||
f = 870;
|
||||
*out = exp((LOGTEN * 0.1) * (f-100.));
|
||||
}
|
||||
}
|
||||
return (w + 4);
|
||||
}
|
||||
|
||||
static void dbtopow_tilde_dsp(t_dbtopow_tilde *x, t_signal **sp)
|
||||
{
|
||||
dsp_add(dbtopow_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
|
||||
}
|
||||
|
||||
void dbtopow_tilde_setup(void)
|
||||
{
|
||||
dbtopow_tilde_class = class_new(gensym("dbtopow~"), (t_newmethod)dbtopow_tilde_new, 0,
|
||||
sizeof(t_dbtopow_tilde), 0, 0);
|
||||
CLASS_MAINSIGNALIN(dbtopow_tilde_class, t_dbtopow_tilde, x_f);
|
||||
class_addmethod(dbtopow_tilde_class, (t_method)dbtopow_tilde_dsp, gensym("dsp"), 0);
|
||||
}
|
||||
|
||||
/* ------------------------------ powtodb~ -------------------------- */
|
||||
|
||||
typedef struct powtodb_tilde
|
||||
{
|
||||
t_object x_obj;
|
||||
float x_f;
|
||||
} t_powtodb_tilde;
|
||||
|
||||
t_class *powtodb_tilde_class;
|
||||
|
||||
static void *powtodb_tilde_new(void)
|
||||
{
|
||||
t_powtodb_tilde *x = (t_powtodb_tilde *)pd_new(powtodb_tilde_class);
|
||||
outlet_new(&x->x_obj, gensym("signal"));
|
||||
x->x_f = 0;
|
||||
return (x);
|
||||
}
|
||||
|
||||
static t_int *powtodb_tilde_perform(t_int *w)
|
||||
{
|
||||
float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
|
||||
t_int n = *(t_int *)(w+3);
|
||||
for (; n--; in++, out++)
|
||||
{
|
||||
float f = *in;
|
||||
if (f <= 0) *out = 0;
|
||||
else
|
||||
{
|
||||
float g = 100 + 10./LOGTEN * log(f);
|
||||
*out = (g < 0 ? 0 : g);
|
||||
}
|
||||
}
|
||||
return (w + 4);
|
||||
}
|
||||
|
||||
static void powtodb_tilde_dsp(t_powtodb_tilde *x, t_signal **sp)
|
||||
{
|
||||
dsp_add(powtodb_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
|
||||
}
|
||||
|
||||
void powtodb_tilde_setup(void)
|
||||
{
|
||||
powtodb_tilde_class = class_new(gensym("powtodb~"), (t_newmethod)powtodb_tilde_new, 0,
|
||||
sizeof(t_powtodb_tilde), 0, 0);
|
||||
CLASS_MAINSIGNALIN(powtodb_tilde_class, t_powtodb_tilde, x_f);
|
||||
class_addmethod(powtodb_tilde_class, (t_method)powtodb_tilde_dsp, gensym("dsp"), 0);
|
||||
}
|
||||
|
||||
|
||||
/* ------------------------ global setup routine ------------------------- */
|
||||
|
||||
void d_math_setup(void)
|
||||
{
|
||||
t_symbol *s = gensym("acoustics~.pd");
|
||||
clip_setup();
|
||||
sigrsqrt_setup();
|
||||
sigsqrt_setup();
|
||||
sigwrap_setup();
|
||||
mtof_tilde_setup();
|
||||
ftom_tilde_setup();
|
||||
dbtorms_tilde_setup();
|
||||
rmstodb_tilde_setup();
|
||||
dbtopow_tilde_setup();
|
||||
powtodb_tilde_setup();
|
||||
|
||||
class_sethelpsymbol(mtof_tilde_class, s);
|
||||
class_sethelpsymbol(ftom_tilde_class, s);
|
||||
class_sethelpsymbol(dbtorms_tilde_class, s);
|
||||
class_sethelpsymbol(rmstodb_tilde_class, s);
|
||||
class_sethelpsymbol(dbtopow_tilde_class, s);
|
||||
class_sethelpsymbol(powtodb_tilde_class, s);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue