Update of /cvsroot/pure-data/externals/iemlib/src/iemlib1
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv1233/iemlib/src/iemlib1
Modified Files:
biquad_freq_resp.c db2v.c f2note.c forpp.c gate.c iemlib1.c
makefile_win soundfile_info.c split.c v2db.c
Added Files:
FIR~.c filter~.c hml_shelf~.c iem_cot4~.c iem_delay~.c
iem_pow4~.c iem_sqrt4~.c lp1_t~.c makefile_linux
mov_avrg_kern~.c para_bp2~.c peakenv~.c prvu~.c pvu~.c rvu~.c
sin_phase~.c vcf_filter~.c
Log Message:
changed sig* to *_tilde
#if MSC_VER is obsolete
replaced all float by t_float
--- NEW FILE: filter~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------- filter~ - slow dynamic filter-kernel 1. and 2. order ----------- */
typedef struct _filter_tilde
{
t_object x_obj;
t_float wn1;
t_float wn2;
t_float a0;
t_float a1;
t_float a2;
t_float b1;
t_float b2;
t_float sr;
t_float cur_f;
t_float cur_l;
t_float cur_a;
t_float cur_b;
t_float delta_f;
t_float delta_a;
t_float delta_b;
t_float end_f;
t_float end_a;
t_float end_b;
t_float ticks_per_interpol_time;
t_float rcp_ticks;
t_float interpol_time;
int ticks;
int counter_f;
int counter_a;
int counter_b;
int inv;
int hp;
int first_order;
int event_mask;
void (*calc)();
void *x_debug_outlet;
t_atom x_at[5];
t_float x_msi;
} t_filter_tilde;
t_class *filter_tilde_class;
static void filter_tilde_snafu(t_filter_tilde *x)
{
}
static void filter_tilde_lp1(t_filter_tilde *x)
{
t_float al;
al = x->cur_a * x->cur_l;
x->a0 = 1.0f/(1.0f + al);
x->a1 = x->a0;
x->b1 = (al - 1.0f)*x->a0;
}
static void filter_tilde_lp2(t_filter_tilde *x)
{
t_float l, al, bl2, rcp;
l = x->cur_l;
al = l*x->cur_a;
bl2 = l*l*x->cur_b + 1.0f;
rcp = 1.0f/(al + bl2);
x->a0 = rcp;
x->a1 = 2.0f*rcp;
x->a2 = x->a0;
x->b1 = rcp*2.0f*(bl2 - 2.0f);
x->b2 = rcp*(al - bl2);
}
static void filter_tilde_hp1(t_filter_tilde *x)
{
t_float al, rcp;
al = x->cur_a * x->cur_l;
rcp = 1.0f/(1.0f + al);
x->a0 = rcp*al;
x->a1 = -x->a0;
x->b1 = rcp*(al - 1.0f);
}
static void filter_tilde_hp2(t_filter_tilde *x)
{
t_float l, al, bl2, rcp;
l = x->cur_l;
bl2 = l*l*x->cur_b + 1.0f;
al = l*x->cur_a;
rcp = 1.0f/(al + bl2);
x->a0 = rcp*(bl2 - 1.0f);
x->a1 = -2.0f*x->a0;
x->a2 = x->a0;
x->b1 = rcp*2.0f*(bl2 - 2.0f);
x->b2 = rcp*(al - bl2);
}
static void filter_tilde_rp2(t_filter_tilde *x)
{
t_float l, al, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0f;
al = l*x->cur_a;
rcp = 1.0f/(al + l2);
x->a0 = rcp*l;
x->a2 = -x->a0;
x->b1 = rcp*2.0f*(l2 - 2.0f);
x->b2 = rcp*(al - l2);
}
static void filter_tilde_bp2(t_filter_tilde *x)
{
t_float l, al, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0f;
al = l*x->cur_a;
rcp = 1.0f/(al + l2);
x->a0 = rcp*al;
x->a2 = -x->a0;
x->b1 = rcp*2.0f*(l2 - 2.0f);
x->b2 = rcp*(al - l2);
}
static void filter_tilde_bs2(t_filter_tilde *x)
{
t_float l, al, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0f;
al = l*x->cur_a;
rcp = 1.0f/(al + l2);
x->a0 = rcp*l2;
x->a1 = rcp*2.0f*(2.0f - l2);
x->a2 = x->a0;
x->b1 = -x->a1;
x->b2 = rcp*(al - l2);
}
static void filter_tilde_rpw2(t_filter_tilde *x)
{
t_float l, al, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0f;
al = l*x->cur_a/x->cur_f;
rcp = 1.0f/(al + l2);
x->a0 = rcp*l;
x->a2 = -x->a0;
x->b1 = rcp*2.0f*(l2 - 2.0f);
x->b2 = rcp*(al - l2);
}
static void filter_tilde_bpw2(t_filter_tilde *x)
{
t_float l, al, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0f;
al = l*x->cur_a/x->cur_f;
rcp = 1.0f/(al + l2);
x->a0 = rcp*al;
x->a2 = -x->a0;
x->b1 = rcp*2.0f*(l2 - 2.0f);
x->b2 = rcp*(al - l2);
}
static void filter_tilde_bsw2(t_filter_tilde *x)
{
t_float l, al, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0f;
al = l*x->cur_a/x->cur_f;
rcp = 1.0f/(al + l2);
x->a0 = rcp*l2;
x->a1 = rcp*2.0f*(2.0f - l2);
x->a2 = x->a0;
x->b1 = -x->a1;
x->b2 = rcp*(al - l2);
}
static void filter_tilde_ap1(t_filter_tilde *x)
{
t_float al;
al = x->cur_a * x->cur_l;
x->a0 = (1.0f - al)/(1.0f + al);
x->b1 = -x->a0;
}
static void filter_tilde_ap2(t_filter_tilde *x)
{
t_float l, al, bl2, rcp;
l = x->cur_l;
bl2 = l*l*x->cur_b + 1.0f;
al = l*x->cur_a;
rcp = 1.0f/(al + bl2);
x->a1 = rcp*2.0f*(2.0f - bl2);
x->a0 = rcp*(bl2 - al);
x->b1 = -x->a1;
x->b2 = -x->a0;
}
/*static void filter_tilde_bp2(t_filter_tilde *x)
{
t_float l, al, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0;
al = l*x->cur_a;
rcp = 1.0f/(al + l2);
x->a0 = rcp*al;
x->a2 = -x->a0;
x->b1 = rcp*2.0f*(2.0f - l2);
x->b2 = rcp*(l2 - al);
}*/
static void filter_tilde_dsp_tick(t_filter_tilde *x)
{
if(x->event_mask)
{
if(x->counter_f)
{
float l, si, co;
if(x->counter_f <= 1)
{
x->cur_f = x->end_f;
x->counter_f = 0;
x->event_mask &= 6;/*set event_mask_bit 0 = 0*/
}
else
{
x->counter_f--;
x->cur_f *= x->delta_f;
}
l = x->cur_f * x->sr;
if(l < 1.0e-20f)
x->cur_l = 1.0e20f;
else if(l > 1.57079632f)
x->cur_l = 0.0f;
else
{
si = sin(l);
co = cos(l);
x->cur_l = co/si;
}
}
if(x->counter_a)
{
if(x->counter_a <= 1)
{
x->cur_a = x->end_a;
x->counter_a = 0;
x->event_mask &= 5;/*set event_mask_bit 1 = 0*/
}
else
{
x->counter_a--;
x->cur_a *= x->delta_a;
}
}
if(x->counter_b)
{
if(x->counter_b <= 1)
{
x->cur_b = x->end_b;
x->counter_b = 0;
x->event_mask &= 3;/*set event_mask_bit 2 = 0*/
}
else
{
x->counter_b--;
x->cur_b *= x->delta_b;
}
}
(*(x->calc))(x);
/* stability check */
if(x->first_order)
{
if(x->b1 <= -0.9999998f)
x->b1 = -0.9999998f;
else if(x->b1 >= 0.9999998f)
x->b1 = 0.9999998f;
}
else
{
float discriminant = x->b1 * x->b1 + 4.0f * x->b2;
if(x->b1 <= -1.9999996f)
x->b1 = -1.9999996f;
else if(x->b1 >= 1.9999996f)
x->b1 = 1.9999996f;
if(x->b2 <= -0.9999998f)
x->b2 = -0.9999998f;
else if(x->b2 >= 0.9999998f)
x->b2 = 0.9999998f;
if(discriminant >= 0.0f)
{
if(0.9999998f - x->b1 - x->b2 < 0.0f)
x->b2 = 0.9999998f - x->b1;
if(0.9999998f + x->b1 - x->b2 < 0.0f)
x->b2 = 0.9999998f + x->b1;
}
}
}
}
static t_int *filter_tilde_perform_2o(t_int *w)
{
t_float *in = (float *)(w[1]);
t_float *out = (float *)(w[2]);
t_filter_tilde *x = (t_filter_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn0, wn1=x->wn1, wn2=x->wn2;
t_float a0=x->a0, a1=x->a1, a2=x->a2;
t_float b1=x->b1, b2=x->b2;
filter_tilde_dsp_tick(x);
for(i=0; i<n; i++)
{
wn0 = *in++ + b1*wn1 + b2*wn2;
*out++ = a0*wn0 + a1*wn1 + a2*wn2;
wn2 = wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn2))
wn2 = 0.0f;
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->wn1 = wn1;
x->wn2 = wn2;
return(w+5);
}
/* yn0 = *out;
xn0 = *in;
*************
yn0 = a0*xn0 + a1*xn1 + a2*xn2 + b1*yn1 + b2*yn2;
yn2 = yn1;
yn1 = yn0;
xn2 = xn1;
xn1 = xn0;
*************************
y/x = (a0 + a1*z-1 + a2*z-2)/(1 - b1*z-1 - b2*z-2);*/
static t_int *filter_tilde_perf8_2o(t_int *w)
{
t_float *in = (float *)(w[1]);
t_float *out = (float *)(w[2]);
t_filter_tilde *x = (t_filter_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn[10];
t_float a0=x->a0, a1=x->a1, a2=x->a2;
t_float b1=x->b1, b2=x->b2;
filter_tilde_dsp_tick(x);
wn[0] = x->wn2;
wn[1] = x->wn1;
for(i=0; i<n; i+=8, in+=8, out+=8)
{
wn[2] = in[0] + b1*wn[1] + b2*wn[0];
out[0] = a0*wn[2] + a1*wn[1] + a2*wn[0];
wn[3] = in[1] + b1*wn[2] + b2*wn[1];
out[1] = a0*wn[3] + a1*wn[2] + a2*wn[1];
wn[4] = in[2] + b1*wn[3] + b2*wn[2];
out[2] = a0*wn[4] + a1*wn[3] + a2*wn[2];
wn[5] = in[3] + b1*wn[4] + b2*wn[3];
out[3] = a0*wn[5] + a1*wn[4] + a2*wn[3];
wn[6] = in[4] + b1*wn[5] + b2*wn[4];
out[4] = a0*wn[6] + a1*wn[5] + a2*wn[4];
wn[7] = in[5] + b1*wn[6] + b2*wn[5];
out[5] = a0*wn[7] + a1*wn[6] + a2*wn[5];
wn[8] = in[6] + b1*wn[7] + b2*wn[6];
out[6] = a0*wn[8] + a1*wn[7] + a2*wn[6];
wn[9] = in[7] + b1*wn[8] + b2*wn[7];
out[7] = a0*wn[9] + a1*wn[8] + a2*wn[7];
wn[0] = wn[8];
wn[1] = wn[9];
}
/* NAN protect */
if(IEM_DENORMAL(wn[0]))
wn[0] = 0.0f;
if(IEM_DENORMAL(wn[1]))
wn[1] = 0.0f;
x->wn1 = wn[1];
x->wn2 = wn[0];
return(w+5);
}
static t_int *filter_tilde_perform_1o(t_int *w)
{
t_float *in = (float *)(w[1]);
t_float *out = (float *)(w[2]);
t_filter_tilde *x = (t_filter_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn0, wn1=x->wn1;
t_float a0=x->a0, a1=x->a1;
t_float b1=x->b1;
filter_tilde_dsp_tick(x);
for(i=0; i<n; i++)
{
wn0 = *in++ + b1*wn1;
*out++ = a0*wn0 + a1*wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->wn1 = wn1;
return(w+5);
}
static t_int *filter_tilde_perf8_1o(t_int *w)
{
t_float *in = (float *)(w[1]);
t_float *out = (float *)(w[2]);
t_filter_tilde *x = (t_filter_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn[9];
t_float a0=x->a0, a1=x->a1;
t_float b1=x->b1;
filter_tilde_dsp_tick(x);
wn[0] = x->wn1;
for(i=0; i<n; i+=8, in+=8, out+=8)
{
wn[1] = in[0] + b1*wn[0];
out[0] = a0*wn[1] + a1*wn[0];
wn[2] = in[1] + b1*wn[1];
out[1] = a0*wn[2] + a1*wn[1];
wn[3] = in[2] + b1*wn[2];
out[2] = a0*wn[3] + a1*wn[2];
wn[4] = in[3] + b1*wn[3];
out[3] = a0*wn[4] + a1*wn[3];
wn[5] = in[4] + b1*wn[4];
out[4] = a0*wn[5] + a1*wn[4];
wn[6] = in[5] + b1*wn[5];
out[5] = a0*wn[6] + a1*wn[5];
wn[7] = in[6] + b1*wn[6];
out[6] = a0*wn[7] + a1*wn[6];
wn[8] = in[7] + b1*wn[7];
out[7] = a0*wn[8] + a1*wn[7];
wn[0] = wn[8];
}
/* NAN protect */
if(IEM_DENORMAL(wn[0]))
wn[0] = 0.0f;
x->wn1 = wn[0];
return(w+5);
}
static void filter_tilde_ft4(t_filter_tilde *x, t_floatarg t)
{
int i = (int)((x->ticks_per_interpol_time)*t+0.49999f);
x->interpol_time = t;
if(i <= 0)
{
x->ticks = 1;
x->rcp_ticks = 1.0;
}
else
{
x->ticks = i;
x->rcp_ticks = 1.0 / (t_float)i;
}
}
static void filter_tilde_ft3(t_filter_tilde *x, t_floatarg b)
{
if(b <= 0.0f)
b = 0.000001f;
if(x->hp)
b = 1.0 / b;
if(b != x->cur_b)
{
x->end_b = b;
x->counter_b = x->ticks;
x->delta_b = exp(log(b/x->cur_b)*x->rcp_ticks);
x->event_mask |= 4;/*set event_mask_bit 2 = 1*/
}
}
static void filter_tilde_ft2(t_filter_tilde *x, t_floatarg a)
{
if(a <= 0.0f)
a = 0.000001f;
if(x->inv)
a = 1.0f / a;
if(x->hp)
a /= x->cur_b;
if(a != x->cur_a)
{
x->end_a = a;
x->counter_a = x->ticks;
x->delta_a = exp(log(a/x->cur_a)*x->rcp_ticks);
x->event_mask |= 2;/*set event_mask_bit 1 = 1*/
}
}
static void filter_tilde_ft1(t_filter_tilde *x, t_floatarg f)
{
if(f <= 0.0f)
f = 0.000001f;
if(f != x->cur_f)
{
x->end_f = f;
x->counter_f = x->ticks;
x->delta_f = exp(log(f/x->cur_f)*x->rcp_ticks);
x->event_mask |= 1;/*set event_mask_bit 0 = 1*/
}
}
static void filter_tilde_print(t_filter_tilde *x)
{
// post("fb1 = %g, fb2 = %g, ff1 = %g, ff2 = %g, ff3 = %g", x->b1, x->b2, x->a0, x->a1, x->a2);
x->x_at[0].a_w.w_float = x->b1;
x->x_at[1].a_w.w_float = x->b2;
x->x_at[2].a_w.w_float = x->a0;
x->x_at[3].a_w.w_float = x->a1;
x->x_at[4].a_w.w_float = x->a2;
outlet_list(x->x_debug_outlet, &s_list, 5, x->x_at);
}
static void filter_tilde_dsp(t_filter_tilde *x, t_signal **sp)
{
t_float si, co, f;
int i, n=(int)sp[0]->s_n;
x->sr = 3.14159265358979323846f / (t_float)(sp[0]->s_sr);
x->ticks_per_interpol_time = 0.001f * (t_float)(sp[0]->s_sr) / (t_float)n;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time)+0.49999f);
if(i <= 0)
{
x->ticks = 1;
x->rcp_ticks = 1.0f;
}
else
{
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
}
f = x->cur_f * x->sr;
if(f < 1.0e-20f)
x->cur_l = 1.0e20f;
else if(f > 1.57079632f)
x->cur_l = 0.0f;
else
{
si = sin(f);
co = cos(f);
x->cur_l = co/si;
}
if(x->first_order)
{
if(n&7)
dsp_add(filter_tilde_perform_1o, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
else
dsp_add(filter_tilde_perf8_1o, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
}
else
{
if(n&7)
dsp_add(filter_tilde_perform_2o, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
else
dsp_add(filter_tilde_perf8_2o, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
}
}
static void *filter_tilde_new(t_symbol *s, int argc, t_atom *argv)
{
t_filter_tilde *x = (t_filter_tilde *)pd_new(filter_tilde_class);
int i;
t_float si, co, f=0.0f, a=0.0f, b=0.0f, interpol=0.0f;
t_symbol *filt_typ=gensym("");
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft3"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft4"));
outlet_new(&x->x_obj, &s_signal);
x->x_debug_outlet = outlet_new(&x->x_obj, &s_list);
x->x_msi = 0.0f;
x->x_at[0].a_type = A_FLOAT;
x->x_at[1].a_type = A_FLOAT;
x->x_at[2].a_type = A_FLOAT;
x->x_at[3].a_type = A_FLOAT;
x->x_at[4].a_type = A_FLOAT;
x->event_mask = 1;
x->counter_f = 1;
x->counter_a = 0;
x->counter_b = 0;
x->delta_f = 0.0f;
x->delta_a = 0.0f;
x->delta_b = 0.0f;
x->interpol_time = 0.0f;
x->wn1 = 0.0f;
x->wn2 = 0.0f;
x->a0 = 0.0f;
x->a1 = 0.0f;
x->a2 = 0.0f;
x->b1 = 0.0f;
x->b2 = 0.0f;
x->sr = 3.14159265358979323846f / 44100.0f;
x->calc = filter_tilde_snafu;
x->first_order = 0;
if((argc == 5)&&IS_A_FLOAT(argv,4)&&IS_A_FLOAT(argv,3)&&IS_A_FLOAT(argv,2)&&IS_A_FLOAT(argv,1)&&IS_A_SYMBOL(argv,0))
{
filt_typ = atom_getsymbolarg(0, argc, argv);
f = (t_float)atom_getfloatarg(1, argc, argv);
a = (t_float)atom_getfloatarg(2, argc, argv);
b = (t_float)atom_getfloatarg(3, argc, argv);
interpol = (t_float)atom_getfloatarg(4, argc, argv);
}
x->cur_f = f;
f *= x->sr;
if(f < 1.0e-20f)
x->cur_l = 1.0e20f;
else if(f > 1.57079632f)
x->cur_l = 0.0f;
else
{
si = sin(f);
co = cos(f);
x->cur_l = co/si;
}
if(a <= 0.0f)
a = 0.000001f;
if(b <= 0.0f)
b = 0.000001f;
x->cur_b = b;
if(interpol <= 0.0f)
interpol = 0.0f;
x->interpol_time = interpol;
x->ticks_per_interpol_time = 0.001f * 44100.0f / 64.0f;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time)+0.49999f);
if(i <= 0)
{
x->ticks = 1;
x->rcp_ticks = 1.0f;
}
else
{
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
}
x->calc = filter_tilde_snafu;
x->cur_a = 1.0f/a; /*a was Q*/
x->inv = 1;
x->hp = 0;
if(filt_typ->s_name)
{
if(filt_typ == gensym("ap1"))
{
x->calc = filter_tilde_ap1;
x->a1 = 1.0f;
x->first_order = 1;
}
else if(filt_typ == gensym("ap2"))
{
x->calc = filter_tilde_ap2;
x->a2 = 1.0f;
}
else if(filt_typ == gensym("ap1c"))
{
x->calc = filter_tilde_ap1;
x->a1 = 1.0f;
x->inv = 0;
x->cur_a = a; /*a was damping*/
x->first_order = 1;
}
else if(filt_typ == gensym("ap2c"))
{
x->calc = filter_tilde_ap2;
x->a2 = 1.0f;
x->inv = 0;
x->cur_a = a; /*a was damping*/
}
else if(filt_typ == gensym("bpq2"))
{
x->calc = filter_tilde_bp2;
}
else if(filt_typ == gensym("rbpq2"))
{
x->calc = filter_tilde_rp2;
}
else if(filt_typ == gensym("bsq2"))
{
x->calc = filter_tilde_bs2;
}
else if(filt_typ == gensym("bpw2"))
{
x->calc = filter_tilde_bpw2;
x->inv = 0;
x->cur_a = a; /*a was bw*/
}
else if(filt_typ == gensym("rbpw2"))
{
x->calc = filter_tilde_rpw2;
x->inv = 0;
x->cur_a = a; /*a was bw*/
}
else if(filt_typ == gensym("bsw2"))
{
x->calc = filter_tilde_bsw2;
x->inv = 0;
x->cur_a = a; /*a was bw*/
}
else if(filt_typ == gensym("hp1"))
{
x->calc = filter_tilde_hp1;
x->first_order = 1;
}
else if(filt_typ == gensym("hp2"))
{
x->calc = filter_tilde_hp2;
}
else if(filt_typ == gensym("lp1"))
{
x->calc = filter_tilde_lp1;
x->first_order = 1;
}
else if(filt_typ == gensym("lp2"))
{
x->calc = filter_tilde_lp2;
}
else if(filt_typ == gensym("hp1c"))
{
x->calc = filter_tilde_hp1;
x->cur_a = 1.0f / a;
x->first_order = 1;
}
else if(filt_typ == gensym("hp2c"))
{
x->calc = filter_tilde_hp2;
x->inv = 0;
x->cur_a = a / b;
x->cur_b = 1.0f / b;
x->hp = 1;
}
else if(filt_typ == gensym("lp1c"))
{
x->calc = filter_tilde_lp1;
x->inv = 0;
x->cur_a = a; /*a was damping*/
x->first_order = 1;
}
else if(filt_typ == gensym("lp2c"))
{
x->calc = filter_tilde_lp2;
x->inv = 0;
x->cur_a = a; /*a was damping*/
}
else
{
post("filter~-Error: 1. initial-arguments: <sym> kind: \
lp1, lp2, hp1, hp2, \
lp1c, lp2c, hp1c, hp2c, \
ap1, ap2, ap1c, ap2c, \
bpq2, rbpq2, bsq2, \
bpw2, rbpw2, bsw2!");
}
x->end_f = x->cur_f;
x->end_a = x->cur_a;
x->end_b = x->cur_b;
}
return (x);
}
void filter_tilde_setup(void)
{
filter_tilde_class = class_new(gensym("filter~"), (t_newmethod)filter_tilde_new,
0, sizeof(t_filter_tilde), 0, A_GIMME, 0);
CLASS_MAINSIGNALIN(filter_tilde_class, t_filter_tilde, x_msi);
class_addmethod(filter_tilde_class, (t_method)filter_tilde_dsp, gensym("dsp"), 0);
class_addmethod(filter_tilde_class, (t_method)filter_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(filter_tilde_class, (t_method)filter_tilde_ft2, gensym("ft2"), A_FLOAT, 0);
class_addmethod(filter_tilde_class, (t_method)filter_tilde_ft3, gensym("ft3"), A_FLOAT, 0);
class_addmethod(filter_tilde_class, (t_method)filter_tilde_ft4, gensym("ft4"), A_FLOAT, 0);
class_addmethod(filter_tilde_class, (t_method)filter_tilde_print, gensym("print"), 0);
class_sethelpsymbol(filter_tilde_class, gensym("iemhelp/help-filter~"));
}
--- NEW FILE: makefile_linux ---
current: all
.SUFFIXES: .pd_linux
INCLUDE = -I. -I/usr/local/src/pd/src
LDFLAGS = -export-dynamic -shared
LIB = -ldl -lm -lpthread
#select either the DBG and OPT compiler flags below:
CFLAGS = -DPD -DUNIX -W -Werror -Wno-unused \
-Wno-parentheses -Wno-switch -O6 -funroll-loops -fomit-frame-pointer -fno-strict-aliasing \
-DDL_OPEN
SYSTEM = $(shell uname -m)
# the sources
SRC = biquad_freq_resp.c \
db2v.c \
f2note.c \
filter~.c \
FIR~.c \
forpp.c \
gate.c \
hml_shelf~.c \
iem_cot4~.c \
iem_delay~.c \
iem_pow4~.c \
iem_sqrt4~.c \
lp1_t~.c \
mov_avrg_kern~.c \
para_bp2~.c \
peakenv~.c \
prvu~.c \
pvu~.c \
rvu~.c \
sin_phase~.c \
soundfile_info.c \
split.c \
v2db.c \
vcf_filter~.c \
iemlib2.c
TARGET = iemlib1.pd_linux
OBJ = $(SRC:.c=.o)
#
# ------------------ targets ------------------------------------
#
clean:
rm $(TARGET)
rm *.o
all: $(OBJ)
@echo :: $(OBJ)
$(LD) $(LDFLAGS) -o $(TARGET) *.o $(LIB)
strip --strip-unneeded $(TARGET)
$(OBJ) : %.o : %.c
$(CC) $(CFLAGS) $(INCLUDE) -c -o $*.o $*.c
Index: soundfile_info.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/soundfile_info.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** soundfile_info.c 11 Apr 2006 16:24:09 -0000 1.4
--- soundfile_info.c 8 Nov 2006 13:24:10 -0000 1.5
***************
*** 4,12 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
#include "iemlib.h"
--- 4,7 ----
***************
*** 163,167 ****
goto soundfile_info_end;
}
! SETFLOAT(x->x_atheader+SFI_HEADER_CHANNELS, (float)ss);
ch = ss;
header_size += 2;
--- 158,162 ----
goto soundfile_info_end;
}
! SETFLOAT(x->x_atheader+SFI_HEADER_CHANNELS, (t_float)ss);
ch = ss;
header_size += 2;
***************
*** 174,178 ****
goto soundfile_info_end;
}
! SETFLOAT(x->x_atheader+SFI_HEADER_SAMPLERATE, (float)ll);
sr = ll;
header_size += 4;
--- 169,173 ----
goto soundfile_info_end;
}
! SETFLOAT(x->x_atheader+SFI_HEADER_SAMPLERATE, (t_float)ll);
sr = ll;
header_size += 4;
***************
*** 189,193 ****
goto soundfile_info_end;
}
! SETFLOAT(x->x_atheader+SFI_HEADER_BYTES_PER_SAMPLE, (float)(ss/ch));
bps = ss;
header_size += 2;
--- 184,188 ----
goto soundfile_info_end;
}
! SETFLOAT(x->x_atheader+SFI_HEADER_BYTES_PER_SAMPLE, (t_float)(ss/ch));
bps = ss;
header_size += 2;
***************
*** 211,219 ****
cvec += 8;
! SETFLOAT(x->x_atheader+SFI_HEADER_HEADERBYTES, (float)header_size);
filesize -= header_size;
filesize /= bps;
! SETFLOAT(x->x_atheader+SFI_HEADER_MULTICHANNEL_FILE_LENGTH, (float)filesize);
SETSYMBOL(x->x_atheader+SFI_HEADER_ENDINESS, gensym("l"));
SETSYMBOL(x->x_atheader+SFI_HEADER_FILENAME, gensym(completefilename));
--- 206,214 ----
cvec += 8;
! SETFLOAT(x->x_atheader+SFI_HEADER_HEADERBYTES, (t_float)header_size);
filesize -= header_size;
filesize /= bps;
! SETFLOAT(x->x_atheader+SFI_HEADER_MULTICHANNEL_FILE_LENGTH, (t_float)filesize);
SETSYMBOL(x->x_atheader+SFI_HEADER_ENDINESS, gensym("l"));
SETSYMBOL(x->x_atheader+SFI_HEADER_FILENAME, gensym(completefilename));
--- NEW FILE: iem_pow4~.c ---
/* 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 - 2005 */
#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~"));
}
Index: makefile_win
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/makefile_win,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** makefile_win 31 Oct 2006 14:17:16 -0000 1.5
--- makefile_win 8 Nov 2006 13:24:09 -0000 1.6
***************
*** 19,43 ****
db2v.c \
f2note.c \
forpp.c \
gate.c \
! sigfilter.c \
! sigFIR.c \
! sighml_shelf.c \
! sigiem_cot4.c \
! sigiem_delay.c \
! sigiem_sqrt4.c \
! sigiem_pow4.c \
! siglp1_t.c \
! sigmov_avrg_kern.c \
! sigpara_bp2.c \
! sigpeakenv.c \
! sigprvu.c \
! sigpvu.c \
! sigrvu.c \
! sigsin_phase.c \
! sigvcf_filter.c \
soundfile_info.c \
split.c \
v2db.c \
iemlib1.c
--- 19,43 ----
db2v.c \
f2note.c \
+ filter~.c \
+ FIR~.c \
forpp.c \
gate.c \
! hml_shelf~.c \
! iem_cot4~.c \
! iem_delay~.c \
! iem_pow4~.c \
! iem_sqrt4~.c \
! lp1_t~.c \
! mov_avrg_kern~.c \
! para_bp2~.c \
! peakenv~.c \
! prvu~.c \
! pvu~.c \
! rvu~.c \
! sin_phase~.c \
soundfile_info.c \
split.c \
v2db.c \
+ vcf_filter~.c \
iemlib1.c
--- NEW FILE: prvu~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------------- prvu~ - simple peak&rms-vu-meter. ----------------- */
typedef struct _prvu_tilde
{
t_object x_obj;
t_atom x_at[3];
void *x_clock_metro;
t_float x_metro_time;
void *x_clock_hold;
t_float x_hold_time;
t_float x_cur_peak;
t_float x_old_peak;
t_float x_hold_peak;
int x_hold;
t_float x_sum_rms;
t_float x_old_rms;
t_float x_rcp;
t_float x_sr;
t_float x_threshold_over;
int x_overflow_counter;
t_float x_release_time;
t_float x_c1;
int x_started;
t_float x_msi;
} t_prvu_tilde;
t_class *prvu_tilde_class;
static void prvu_tilde_tick_metro(t_prvu_tilde *x);
static void prvu_tilde_tick_hold(t_prvu_tilde *x);
static void prvu_tilde_reset(t_prvu_tilde *x)
{
x->x_at[0].a_w.w_float = -99.9f;
x->x_at[1].a_w.w_float = -99.9f;
x->x_at[2].a_w.w_float = 0.0f;
outlet_list(x->x_obj.ob_outlet, &s_list, 3, x->x_at);
x->x_overflow_counter = 0;
x->x_cur_peak = 0.0f;
x->x_old_peak = 0.0f;
x->x_hold_peak = 0.0f;
x->x_sum_rms = 0.0f;
x->x_old_rms = 0.0f;
x->x_hold = 0;
clock_unset(x->x_clock_hold);
clock_delay(x->x_clock_metro, x->x_metro_time);
}
static void prvu_tilde_stop(t_prvu_tilde *x)
{
clock_unset(x->x_clock_metro);
x->x_started = 0;
}
static void prvu_tilde_start(t_prvu_tilde *x)
{
clock_delay(x->x_clock_metro, x->x_metro_time);
x->x_started = 1;
}
static void prvu_tilde_float(t_prvu_tilde *x, t_floatarg f)
{
if(f == 0.0)
{
clock_unset(x->x_clock_metro);
x->x_started = 0;
}
else
{
clock_delay(x->x_clock_metro, x->x_metro_time);
x->x_started = 1;
}
}
static void prvu_tilde_t_release(t_prvu_tilde *x, t_floatarg release_time)
{
if(release_time <= 5.0f)
release_time = 5.0f;
x->x_release_time = release_time;
x->x_c1 = exp(-2.0f*x->x_metro_time/x->x_release_time);
}
static void prvu_tilde_t_metro(t_prvu_tilde *x, t_floatarg metro_time)
{
if(metro_time <= 5.0f)
metro_time = 5.0f;
x->x_metro_time = metro_time;
x->x_c1 = exp(-2.0f*x->x_metro_time/x->x_release_time);
x->x_rcp = 1.0f/(x->x_sr*(t_float)x->x_metro_time);
}
static void prvu_tilde_t_hold(t_prvu_tilde *x, t_floatarg hold_time)
{
if(hold_time <= 5.0f)
hold_time = 5.0f;
x->x_hold_time = hold_time;
}
static void prvu_tilde_threshold(t_prvu_tilde *x, t_floatarg thresh)
{
x->x_threshold_over = thresh;
}
static t_int *prvu_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_prvu_tilde *x = (t_prvu_tilde *)(w[2]);
int n = (int)(w[3]);
t_float peak = x->x_cur_peak, pow, sum=x->x_sum_rms;
int i;
if(x->x_started)
{
for(i=0; i<n; i++)
{
pow = in[i]*in[i];
if(pow > peak)
peak = pow;
sum += pow;
}
x->x_cur_peak = peak;
x->x_sum_rms = sum;
}
return(w+4);
}
static void prvu_tilde_dsp(t_prvu_tilde *x, t_signal **sp)
{
x->x_sr = 0.001*(t_float)sp[0]->s_sr;
x->x_rcp = 1.0f/(x->x_sr*x->x_metro_time);
dsp_add(prvu_tilde_perform, 3, sp[0]->s_vec, x, sp[0]->s_n);
clock_delay(x->x_clock_metro, x->x_metro_time);
}
static void prvu_tilde_tick_hold(t_prvu_tilde *x)
{
x->x_hold = 0;
x->x_hold_peak = x->x_old_peak;
}
static void prvu_tilde_tick_metro(t_prvu_tilde *x)
{
t_float dbr, dbp, cur_rms, c1=x->x_c1;
x->x_old_peak *= c1;
/* NAN protect */
if(IEM_DENORMAL(x->x_old_peak))
x->x_old_peak = 0.0f;
if(x->x_cur_peak > x->x_old_peak)
x->x_old_peak = x->x_cur_peak;
if(x->x_old_peak > x->x_hold_peak)
{
x->x_hold = 1;
x->x_hold_peak = x->x_old_peak;
clock_delay(x->x_clock_hold, x->x_hold_time);
}
if(!x->x_hold)
x->x_hold_peak = x->x_old_peak;
if(x->x_hold_peak <= 0.0000000001f)
dbp = -99.9f;
else if(x->x_hold_peak > 1000000.0f)
{
dbp = 60.0f;
x->x_hold_peak = 1000000.0f;
x->x_old_peak = 1000000.0f;
}
else
dbp = 4.3429448195f*log(x->x_hold_peak);
x->x_cur_peak = 0.0f;
if(dbp >= x->x_threshold_over)
x->x_overflow_counter++;
x->x_at[1].a_w.w_float = dbp;
x->x_at[2].a_w.w_float = (t_float)x->x_overflow_counter;
cur_rms = (1.0f - c1)*x->x_sum_rms*x->x_rcp + c1*x->x_old_rms;
/* NAN protect */
if(IEM_DENORMAL(cur_rms))
cur_rms = 0.0f;
if(cur_rms <= 0.0000000001f)
dbr = -99.9f;
else if(cur_rms > 1000000.0f)
{
dbr = 60.0f;
x->x_old_rms = 1000000.0f;
}
else
dbr = 4.3429448195f*log(cur_rms);
x->x_sum_rms = 0.0f;
x->x_old_rms = cur_rms;
x->x_at[0].a_w.w_float = dbr;
outlet_list(x->x_obj.ob_outlet, &s_list, 3, x->x_at);
clock_delay(x->x_clock_metro, x->x_metro_time);
}
static void prvu_tilde_ff(t_prvu_tilde *x)
{
clock_free(x->x_clock_metro);
clock_free(x->x_clock_hold);
}
static void *prvu_tilde_new(t_floatarg metro_time, t_floatarg hold_time,
t_floatarg release_time, t_floatarg threshold)
{
t_prvu_tilde *x;
t_float t;
int i;
x = (t_prvu_tilde *)pd_new(prvu_tilde_class);
if(metro_time <= 0.0f)
metro_time = 300.0f;
if(metro_time <= 5.0f)
metro_time = 5.0f;
if(release_time <= 0.0f)
release_time = 300.0f;
if(release_time <= 5.0f)
release_time = 5.0f;
if(hold_time <= 0.0f)
hold_time = 1000.0f;
if(hold_time <= 5.0f)
hold_time = 5.0f;
if(threshold == 0.0f)
threshold = -0.01f;
x->x_metro_time = metro_time;
x->x_release_time = release_time;
x->x_hold_time = hold_time;
x->x_threshold_over = threshold;
x->x_c1 = exp(-2.0f*x->x_metro_time/x->x_release_time);
x->x_cur_peak = 0.0f;
x->x_old_peak = 0.0f;
x->x_hold_peak = 0.0f;
x->x_hold = 0;
x->x_sum_rms = 0.0f;
x->x_old_rms = 0.0f;
x->x_sr = 44.1f;
x->x_rcp = 1.0f/(x->x_sr*x->x_metro_time);
x->x_overflow_counter = 0;
x->x_clock_metro = clock_new(x, (t_method)prvu_tilde_tick_metro);
x->x_clock_hold = clock_new(x, (t_method)prvu_tilde_tick_hold);
x->x_started = 1;
outlet_new(&x->x_obj, &s_list);
x->x_at[0].a_type = A_FLOAT;
x->x_at[1].a_type = A_FLOAT;
x->x_at[2].a_type = A_FLOAT;
x->x_msi = 0.0f;
return(x);
}
void prvu_tilde_setup(void)
{
prvu_tilde_class = class_new(gensym("prvu~"), (t_newmethod)prvu_tilde_new,
(t_method)prvu_tilde_ff, sizeof(t_prvu_tilde), 0,
A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(prvu_tilde_class, t_prvu_tilde, x_msi);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_dsp, gensym("dsp"), 0);
class_addfloat(prvu_tilde_class, prvu_tilde_float);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_reset, gensym("reset"), 0);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_start, gensym("start"), 0);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_stop, gensym("stop"), 0);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_t_release, gensym("t_release"), A_FLOAT, 0);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_t_metro, gensym("t_metro"), A_FLOAT, 0);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_t_hold, gensym("t_hold"), A_FLOAT, 0);
class_addmethod(prvu_tilde_class, (t_method)prvu_tilde_threshold, gensym("threshold"), A_FLOAT, 0);
class_sethelpsymbol(prvu_tilde_class, gensym("iemhelp/help-prvu~"));
}
Index: db2v.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/db2v.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** db2v.c 11 Apr 2006 16:24:09 -0000 1.4
--- db2v.c 8 Nov 2006 13:24:09 -0000 1.5
***************
*** 4,18 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
- #include <stdio.h>
- #include <string.h>
/* -------- db2v - a techn. dB to rms-value converter. --------- */
--- 4,11 ----
***************
*** 20,29 ****
static t_class *db2v_class;
! float db2v(float f)
{
return (f <= -199.9 ? 0 : exp(0.11512925465 * f));
}
! static void db2v_float(t_object *x, t_float f)
{
outlet_float(x->ob_outlet, db2v(f));
--- 13,22 ----
static t_class *db2v_class;
! t_float db2v(t_float f)
{
return (f <= -199.9 ? 0 : exp(0.11512925465 * f));
}
! static void db2v_float(t_object *x, t_floatarg f)
{
outlet_float(x->ob_outlet, db2v(f));
--- NEW FILE: para_bp2~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------- para_bp2~ - parametric bandpass 2. order ----------- */
typedef struct _para_bp2_tilde
{
t_object x_obj;
t_float wn1;
t_float wn2;
t_float a0;
t_float a1;
t_float a2;
t_float b1;
t_float b2;
t_float sr;
t_float cur_f;
t_float cur_l;
t_float cur_a;
t_float cur_g;
t_float delta_f;
t_float delta_a;
t_float delta_g;
t_float end_f;
t_float end_a;
t_float end_g;
t_float ticks_per_interpol_time;
t_float rcp_ticks;
t_float interpol_time;
int ticks;
int counter_f;
int counter_a;
int counter_g;
int event_mask;
void *x_debug_outlet;
t_atom x_at[5];
t_float x_msi;
} t_para_bp2_tilde;
t_class *para_bp2_tilde_class;
static void para_bp2_tilde_calc(t_para_bp2_tilde *x)
{
t_float l, al, gal, l2, rcp;
l = x->cur_l;
l2 = l*l + 1.0f;
al = l*x->cur_a;
gal = al*x->cur_g;
rcp = 1.0f/(al + l2);
x->a0 = rcp*(l2 + gal);
x->a1 = rcp*2.0f*(2.0f - l2);
x->a2 = rcp*(l2 - gal);
x->b1 = -x->a1;
x->b2 = rcp*(al - l2);
}
static void para_bp2_tilde_dsp_tick(t_para_bp2_tilde *x)
{
if(x->event_mask)
{
t_float discriminant;
if(x->counter_f)
{
t_float l, si, co;
if(x->counter_f <= 1)
{
x->cur_f = x->end_f;
x->counter_f = 0;
x->event_mask &= 6;/*set event_mask_bit 0 = 0*/
}
else
{
x->counter_f--;
x->cur_f *= x->delta_f;
}
l = x->cur_f * x->sr;
if(l < 1.0e-20f)
x->cur_l = 1.0e20f;
else if(l > 1.57079632f)
x->cur_l = 0.0f;
else
{
si = sin(l);
co = cos(l);
x->cur_l = co/si;
}
}
if(x->counter_a)
{
if(x->counter_a <= 1)
{
x->cur_a = x->end_a;
x->counter_a = 0;
x->event_mask &= 5;/*set event_mask_bit 1 = 0*/
}
else
{
x->counter_a--;
x->cur_a *= x->delta_a;
}
}
if(x->counter_g)
{
if(x->counter_g <= 1)
{
x->cur_g = x->end_g;
x->counter_g = 0;
x->event_mask &= 3;/*set event_mask_bit 2 = 0*/
}
else
{
x->counter_g--;
x->cur_g *= x->delta_g;
}
}
para_bp2_tilde_calc(x);
/* stability check */
discriminant = x->b1 * x->b1 + 4.0f * x->b2;
if(x->b1 <= -1.9999996f)
x->b1 = -1.9999996f;
else if(x->b1 >= 1.9999996f)
x->b1 = 1.9999996f;
if(x->b2 <= -0.9999998f)
x->b2 = -0.9999998f;
else if(x->b2 >= 0.9999998f)
x->b2 = 0.9999998f;
if(discriminant >= 0.0f)
{
if(0.9999998f - x->b1 - x->b2 < 0.0f)
x->b2 = 0.9999998f - x->b1;
if(0.9999998f + x->b1 - x->b2 < 0.0f)
x->b2 = 0.9999998f + x->b1;
}
}
}
static t_int *para_bp2_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_para_bp2_tilde *x = (t_para_bp2_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn0, wn1=x->wn1, wn2=x->wn2;
t_float a0=x->a0, a1=x->a1, a2=x->a2;
t_float b1=x->b1, b2=x->b2;
para_bp2_tilde_dsp_tick(x);
for(i=0; i<n; i++)
{
wn0 = *in++ + b1*wn1 + b2*wn2;
*out++ = a0*wn0 + a1*wn1 + a2*wn2;
wn2 = wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn2))
wn2 = 0.0f;
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->wn1 = wn1;
x->wn2 = wn2;
return(w+5);
}
/* yn0 = *out;
xn0 = *in;
*************
yn0 = a0*xn0 + a1*xn1 + a2*xn2 + b1*yn1 + b2*yn2;
yn2 = yn1;
yn1 = yn0;
xn2 = xn1;
xn1 = xn0;
*************************
y/x = (a0 + a1*z-1 + a2*z-2)/(1 - b1*z-1 - b2*z-2);*/
static t_int *para_bp2_tilde_perf8(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_para_bp2_tilde *x = (t_para_bp2_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn[10];
t_float a0=x->a0, a1=x->a1, a2=x->a2;
t_float b1=x->b1, b2=x->b2;
para_bp2_tilde_dsp_tick(x);
wn[0] = x->wn2;
wn[1] = x->wn1;
for(i=0; i<n; i+=8, in+=8, out+=8)
{
wn[2] = in[0] + b1*wn[1] + b2*wn[0];
out[0] = a0*wn[2] + a1*wn[1] + a2*wn[0];
wn[3] = in[1] + b1*wn[2] + b2*wn[1];
out[1] = a0*wn[3] + a1*wn[2] + a2*wn[1];
wn[4] = in[2] + b1*wn[3] + b2*wn[2];
out[2] = a0*wn[4] + a1*wn[3] + a2*wn[2];
wn[5] = in[3] + b1*wn[4] + b2*wn[3];
out[3] = a0*wn[5] + a1*wn[4] + a2*wn[3];
wn[6] = in[4] + b1*wn[5] + b2*wn[4];
out[4] = a0*wn[6] + a1*wn[5] + a2*wn[4];
wn[7] = in[5] + b1*wn[6] + b2*wn[5];
out[5] = a0*wn[7] + a1*wn[6] + a2*wn[5];
wn[8] = in[6] + b1*wn[7] + b2*wn[6];
out[6] = a0*wn[8] + a1*wn[7] + a2*wn[6];
wn[9] = in[7] + b1*wn[8] + b2*wn[7];
out[7] = a0*wn[9] + a1*wn[8] + a2*wn[7];
wn[0] = wn[8];
wn[1] = wn[9];
}
/* NAN protect */
if(IEM_DENORMAL(wn[0]))
wn[0] = 0.0f;
if(IEM_DENORMAL(wn[1]))
wn[1] = 0.0f;
x->wn1 = wn[1];
x->wn2 = wn[0];
return(w+5);
}
static void para_bp2_tilde_ft4(t_para_bp2_tilde *x, t_floatarg t)
{
int i = (int)((x->ticks_per_interpol_time)*t);
x->interpol_time = t;
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
}
static void para_bp2_tilde_ft3(t_para_bp2_tilde *x, t_floatarg l)
{
t_float g = exp(0.11512925465 * l);
if(g != x->cur_g)
{
x->end_g = g;
x->counter_g = x->ticks;
x->delta_g = exp(log(g/x->cur_g)*x->rcp_ticks);
x->event_mask |= 4;/*set event_mask_bit 2 = 1*/
}
}
static void para_bp2_tilde_ft2(t_para_bp2_tilde *x, t_floatarg q)
{
t_float a;
if(q <= 0.0f)
q = 0.000001f;
a = 1.0f/q;
if(a != x->cur_a)
{
x->end_a = a;
x->counter_a = x->ticks;
x->delta_a = exp(log(a/x->cur_a)*x->rcp_ticks);
x->event_mask |= 2;/*set event_mask_bit 1 = 1*/
}
}
static void para_bp2_tilde_ft1(t_para_bp2_tilde *x, t_floatarg f)
{
if(f <= 0.0f)
f = 0.000001f;
if(f != x->cur_f)
{
x->end_f = f;
x->counter_f = x->ticks;
x->delta_f = exp(log(f/x->cur_f)*x->rcp_ticks);
x->event_mask |= 1;/*set event_mask_bit 0 = 1*/
}
}
static void para_bp2_tilde_print(t_para_bp2_tilde *x)
{
// post("fb1 = %g, fb2 = %g, ff1 = %g, ff2 = %g, ff3 = %g", x->b1, x->b2, x->a0, x->a1, x->a2);
x->x_at[0].a_w.w_float = x->b1;
x->x_at[1].a_w.w_float = x->b2;
x->x_at[2].a_w.w_float = x->a0;
x->x_at[3].a_w.w_float = x->a1;
x->x_at[4].a_w.w_float = x->a2;
outlet_list(x->x_debug_outlet, &s_list, 5, x->x_at);
}
static void para_bp2_tilde_dsp(t_para_bp2_tilde *x, t_signal **sp)
{
t_float si, co, f;
int i, n=(int)sp[0]->s_n;
x->sr = 3.14159265358979323846f / (t_float)(sp[0]->s_sr);
x->ticks_per_interpol_time = 0.001f * (t_float)(sp[0]->s_sr) / (t_float)n;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
f = x->cur_f * x->sr;
if(f < 1.0e-20f)
x->cur_l = 1.0e20f;
else if(f > 1.57079632f)
x->cur_l = 0.0f;
else
{
si = sin(f);
co = cos(f);
x->cur_l = co/si;
}
if(n&7)
dsp_add(para_bp2_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
else
dsp_add(para_bp2_tilde_perf8, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
}
static void *para_bp2_tilde_new(t_symbol *s, int argc, t_atom *argv)
{
t_para_bp2_tilde *x = (t_para_bp2_tilde *)pd_new(para_bp2_tilde_class);
int i;
t_float si, co, f=0.0f, q=1.0f, l=0.0f, interpol=0.0f;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft3"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft4"));
outlet_new(&x->x_obj, &s_signal);
x->x_debug_outlet = outlet_new(&x->x_obj, &s_list);
x->x_msi = 0;
x->x_at[0].a_type = A_FLOAT;
x->x_at[1].a_type = A_FLOAT;
x->x_at[2].a_type = A_FLOAT;
x->x_at[3].a_type = A_FLOAT;
x->x_at[4].a_type = A_FLOAT;
x->event_mask = 1;
x->counter_f = 1;
x->counter_a = 0;
x->counter_g = 0;
x->delta_f = 0.0f;
x->delta_a = 0.0f;
x->delta_g = 0.0f;
x->interpol_time = 500.0f;
x->wn1 = 0.0f;
x->wn2 = 0.0f;
x->a0 = 0.0f;
x->a1 = 0.0f;
x->a2 = 0.0f;
x->b1 = 0.0f;
x->b2 = 0.0f;
x->sr = 3.14159265358979323846f / 44100.0f;
x->cur_a = 1.0f;
if((argc == 4)&&IS_A_FLOAT(argv,3)&&IS_A_FLOAT(argv,2)&&IS_A_FLOAT(argv,1)&&IS_A_FLOAT(argv,0))
{
f = (t_float)atom_getfloatarg(0, argc, argv);
q = (t_float)atom_getfloatarg(1, argc, argv);
l = (t_float)atom_getfloatarg(2, argc, argv);
interpol = (t_float)atom_getfloatarg(3, argc, argv);
}
if(f <= 0.0f)
f = 0.000001f;
x->cur_f = f;
f *= x->sr;
if(f < 1.0e-20f)
x->cur_l = 1.0e20f;
else if(f > 1.57079632f)
x->cur_l = 0.0f;
else
{
si = sin(f);
co = cos(f);
x->cur_l = co/si;
}
if(q <= 0.0f)
q = 0.000001f;
x->cur_a = 1.0f/q;
x->cur_g = exp(0.11512925465 * l);
if(interpol <= 0.0f)
interpol = 0.0f;
x->interpol_time = interpol;
x->ticks_per_interpol_time = 0.5f;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
x->end_f = x->cur_f;
x->end_a = x->cur_a;
x->end_g = x->cur_g;
return(x);
}
void para_bp2_tilde_setup(void)
{
para_bp2_tilde_class = class_new(gensym("para_bp2~"), (t_newmethod)para_bp2_tilde_new,
0, sizeof(t_para_bp2_tilde), 0, A_GIMME, 0);
CLASS_MAINSIGNALIN(para_bp2_tilde_class, t_para_bp2_tilde, x_msi);
class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_dsp, gensym("dsp"), 0);
class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft2, gensym("ft2"), A_FLOAT, 0);
class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft3, gensym("ft3"), A_FLOAT, 0);
class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_ft4, gensym("ft4"), A_FLOAT, 0);
class_addmethod(para_bp2_tilde_class, (t_method)para_bp2_tilde_print, gensym("print"), 0);
class_sethelpsymbol(para_bp2_tilde_class, gensym("iemhelp/help-para_bp2~"));
}
--- NEW FILE: iem_sqrt4~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
#define IEMSQRT4TAB1SIZE 256
#define IEMSQRT4TAB2SIZE 1024
/* ------------------------ iem_sqrt4~ ----------------------------- */
t_float *iem_sqrt4_tilde_exptab=(t_float *)0L;
t_float *iem_sqrt4_tilde_mantissatab=(t_float *)0L;
static t_class *iem_sqrt4_tilde_class;
typedef struct _iem_sqrt4_tilde
{
t_object x_obj;
t_float x_msi;
} t_iem_sqrt4_tilde;
static t_int *iem_sqrt4_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_int n = (t_int)(w[3])/4;
while(n--)
{
t_float f = *in;
t_float g, h;
long l = *(long *)(in);
if(f < 0.0f)
{
*out++ = 0.0f;
*out++ = 0.0f;
*out++ = 0.0f;
*out++ = 0.0f;
}
else
{
g = iem_sqrt4_tilde_exptab[(l >> 23) & 0xff] * iem_sqrt4_tilde_mantissatab[(l >> 13) & 0x3ff];
h = f * (1.5f * g - 0.5f * g * g * g * f);
*out++ = h;
*out++ = h;
*out++ = h;
*out++ = h;
}
in += 4;
}
return(w+4);
}
static void iem_sqrt4_tilde_dsp(t_iem_sqrt4_tilde *x, t_signal **sp)
{
dsp_add(iem_sqrt4_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
}
static void iem_sqrt4_tilde_maketable(void)
{
int i;
t_float f;
long l;
if(!iem_sqrt4_tilde_exptab)
{
iem_sqrt4_tilde_exptab = (t_float *)getbytes(sizeof(t_float) * IEMSQRT4TAB1SIZE);
for(i=0; i<IEMSQRT4TAB1SIZE; i++)
{
l = (i ? (i == IEMSQRT4TAB1SIZE-1 ? IEMSQRT4TAB1SIZE-2 : i) : 1)<< 23;
*(long *)(&f) = l;
iem_sqrt4_tilde_exptab[i] = 1.0f/sqrt(f);
}
}
if(!iem_sqrt4_tilde_mantissatab)
{
iem_sqrt4_tilde_mantissatab = (t_float *)getbytes(sizeof(t_float) * IEMSQRT4TAB2SIZE);
for(i=0; i<IEMSQRT4TAB2SIZE; i++)
{
f = 1.0f + (1.0f/(t_float)IEMSQRT4TAB2SIZE) * (t_float)i;
iem_sqrt4_tilde_mantissatab[i] = 1.0f/sqrt(f);
}
}
}
static void *iem_sqrt4_tilde_new(void)
{
t_iem_sqrt4_tilde *x = (t_iem_sqrt4_tilde *)pd_new(iem_sqrt4_tilde_class);
outlet_new(&x->x_obj, gensym("signal"));
x->x_msi = 0;
return (x);
}
void iem_sqrt4_tilde_setup(void)
{
iem_sqrt4_tilde_class = class_new(gensym("iem_sqrt4~"), (t_newmethod)iem_sqrt4_tilde_new, 0,
sizeof(t_iem_sqrt4_tilde), 0, 0);
CLASS_MAINSIGNALIN(iem_sqrt4_tilde_class, t_iem_sqrt4_tilde, x_msi);
class_addmethod(iem_sqrt4_tilde_class, (t_method)iem_sqrt4_tilde_dsp, gensym("dsp"), 0);
iem_sqrt4_tilde_maketable();
class_sethelpsymbol(iem_sqrt4_tilde_class, gensym("iemhelp/help-iem_sqrt4~"));
}
Index: forpp.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/forpp.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** forpp.c 11 Apr 2006 16:24:09 -0000 1.4
--- forpp.c 8 Nov 2006 13:24:09 -0000 1.5
***************
*** 4,18 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
#include "iemlib.h"
- #include <math.h>
- #include <stdio.h>
- #include <string.h>
/* ----------------------------- for++ -------------------------------- */
--- 4,10 ----
***************
*** 24,28 ****
int x_beg;
int x_end;
! float x_delay;
int x_cur;
int x_incr;
--- 16,20 ----
int x_beg;
int x_end;
! t_float x_delay;
int x_cur;
int x_incr;
***************
*** 109,113 ****
}
! static void forpp_float(t_forpp *x, t_float beg)
{
x->x_beg = (int)beg;
--- 101,105 ----
}
! static void forpp_float(t_forpp *x, t_floatarg beg)
{
x->x_beg = (int)beg;
***************
*** 118,122 ****
}
! static void forpp_ft1(t_forpp *x, t_float end)
{
x->x_end = (int)end;
--- 110,114 ----
}
! static void forpp_ft1(t_forpp *x, t_floatarg end)
{
x->x_end = (int)end;
***************
*** 127,131 ****
}
! static void forpp_ft2(t_forpp *x, t_float delay)
{
if(delay < 0.0)
--- 119,123 ----
}
! static void forpp_ft2(t_forpp *x, t_floatarg delay)
{
if(delay < 0.0)
--- NEW FILE: mov_avrg_kern~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
/* -- mov_avrg_kern~ - kernel for a moving-average-filter with IIR - */
typedef struct _mov_avrg_kern_tilde
{
t_object x_obj;
double x_wn1;
double x_a0;
double x_sr;
double x_mstime;
int x_nsamps;
int x_counter;
t_float x_msi;
} t_mov_avrg_kern_tilde;
t_class *mov_avrg_kern_tilde_class;
static t_int *mov_avrg_kern_tilde_perform(t_int *w)
{
t_float *in_direct = (t_float *)(w[1]);
t_float *in_delayed = (t_float *)(w[2]);
t_float *out = (t_float *)(w[3]);
t_mov_avrg_kern_tilde *x = (t_mov_avrg_kern_tilde *)(w[4]);
int i, n = (int)(w[5]);
double wn0, wn1=x->x_wn1, a0=x->x_a0;
if(x->x_counter)
{
int counter = x->x_counter;
if(counter >= n)
{
x->x_counter = counter - n;
for(i=0; i<n; i++)
{
wn0 = wn1 + a0*(double)(*in_direct++);
*out++ = (t_float)wn0;
wn1 = wn0;
}
}
else
{
x->x_counter = 0;
for(i=0; i<counter; i++)
{
wn0 = wn1 + a0*(double)(*in_direct++);
*out++ = (t_float)wn0;
wn1 = wn0;
}
for(i=counter; i<n; i++)
{
wn0 = wn1 + a0*(double)(*in_direct++ - *in_delayed++);
*out++ = (t_float)wn0;
wn1 = wn0;
}
}
}
else
{
for(i=0; i<n; i++)
{
wn0 = wn1 + a0*(double)(*in_direct++ - *in_delayed++);
*out++ = (t_float)wn0;
wn1 = wn0;
}
}
x->x_wn1 = wn1;
return(w+6);
}
static void mov_avrg_kern_tilde_ft1(t_mov_avrg_kern_tilde *x, t_floatarg mstime)
{
if(mstime < 0.04)
mstime = 0.04;
x->x_mstime = (double)mstime;
x->x_nsamps = (int)(x->x_sr * x->x_mstime);
x->x_counter = x->x_nsamps;
x->x_wn1 = 0.0;
x->x_a0 = 1.0/(double)(x->x_nsamps);
}
static void mov_avrg_kern_tilde_reset(t_mov_avrg_kern_tilde *x)
{
x->x_counter = x->x_nsamps;
x->x_wn1 = 0.0;
}
static void mov_avrg_kern_tilde_dsp(t_mov_avrg_kern_tilde *x, t_signal **sp)
{
x->x_sr = 0.001*(double)(sp[0]->s_sr);
x->x_nsamps = (int)(x->x_sr * x->x_mstime);
x->x_counter = x->x_nsamps;
x->x_wn1 = 0.0;
x->x_a0 = 1.0/(double)(x->x_nsamps);
dsp_add(mov_avrg_kern_tilde_perform, 5, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, x, sp[0]->s_n);
}
static void *mov_avrg_kern_tilde_new(t_floatarg mstime)
{
t_mov_avrg_kern_tilde *x = (t_mov_avrg_kern_tilde *)pd_new(mov_avrg_kern_tilde_class);
if(mstime < 0.04)
mstime = 0.04;
x->x_mstime = (double)mstime;
x->x_sr = 44.1;
x->x_nsamps = (int)(x->x_sr * x->x_mstime);
x->x_counter = x->x_nsamps;
x->x_wn1 = 0.0;
x->x_a0 = 1.0/(double)(x->x_nsamps);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
outlet_new(&x->x_obj, &s_signal);
x->x_msi = 0;
return(x);
}
void mov_avrg_kern_tilde_setup(void)
{
mov_avrg_kern_tilde_class = class_new(gensym("mov_avrg_kern~"), (t_newmethod)mov_avrg_kern_tilde_new,
0, sizeof(t_mov_avrg_kern_tilde), 0, A_FLOAT, 0);
CLASS_MAINSIGNALIN(mov_avrg_kern_tilde_class, t_mov_avrg_kern_tilde, x_msi);
class_addmethod(mov_avrg_kern_tilde_class, (t_method)mov_avrg_kern_tilde_dsp, gensym("dsp"), 0);
class_addmethod(mov_avrg_kern_tilde_class, (t_method)mov_avrg_kern_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(mov_avrg_kern_tilde_class, (t_method)mov_avrg_kern_tilde_reset, gensym("reset"), 0);
}
--- NEW FILE: peakenv~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------------- peakenv~ - simple peak-envelope-converter. ----------------- */
typedef struct _peakenv_tilde
{
t_object x_obj;
t_float x_sr;
t_float x_old_peak;
t_float x_c1;
t_float x_releasetime;
t_float x_msi;
} t_peakenv_tilde;
t_class *peakenv_tilde_class;
static void peakenv_tilde_reset(t_peakenv_tilde *x)
{
x->x_old_peak = 0.0f;
}
static void peakenv_tilde_ft1(t_peakenv_tilde *x, t_floatarg f)/* release-time in ms */
{
if(f < 0.0f)
f = 0.0f;
x->x_releasetime = f;
x->x_c1 = exp(-1.0/(x->x_sr*0.001*x->x_releasetime));
}
static t_int *peakenv_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_peakenv_tilde *x = (t_peakenv_tilde *)(w[3]);
int n = (int)(w[4]);
t_float peak = x->x_old_peak;
t_float c1 = x->x_c1;
t_float absolute;
int i;
for(i=0; i<n; i++)
{
absolute = fabs(*in++);
peak *= c1;
if(absolute > peak)
peak = absolute;
*out++ = peak;
}
/* NAN protect */
if(IEM_DENORMAL(peak))
peak = 0.0f;
x->x_old_peak = peak;
return(w+5);
}
static void peakenv_tilde_dsp(t_peakenv_tilde *x, t_signal **sp)
{
x->x_sr = (t_float)sp[0]->s_sr;
peakenv_tilde_ft1(x, x->x_releasetime);
dsp_add(peakenv_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n);
}
static void *peakenv_tilde_new(t_floatarg f)
{
t_peakenv_tilde *x = (t_peakenv_tilde *)pd_new(peakenv_tilde_class);
if(f <= 0.0f)
f = 0.0f;
x->x_sr = 44100.0f;
peakenv_tilde_ft1(x, f);
x->x_old_peak = 0.0f;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
outlet_new(&x->x_obj, &s_signal);
x->x_msi = 0;
return(x);
}
void peakenv_tilde_setup(void)
{
peakenv_tilde_class = class_new(gensym("peakenv~"), (t_newmethod)peakenv_tilde_new,
0, sizeof(t_peakenv_tilde), 0, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(peakenv_tilde_class, t_peakenv_tilde, x_msi);
class_addmethod(peakenv_tilde_class, (t_method)peakenv_tilde_dsp, gensym("dsp"), 0);
class_addmethod(peakenv_tilde_class, (t_method)peakenv_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(peakenv_tilde_class, (t_method)peakenv_tilde_reset, gensym("reset"), 0);
class_sethelpsymbol(peakenv_tilde_class, gensym("iemhelp/help-peakenv~"));
}
Index: gate.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/gate.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** gate.c 11 Apr 2006 16:24:09 -0000 1.4
--- gate.c 8 Nov 2006 13:24:09 -0000 1.5
***************
*** 2,18 ****
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
! iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2004 */
!
! #ifdef _MSC_VER
! #pragma warning( disable : 4244 )
! #pragma warning( disable : 4305 )
! #endif
#include "m_pd.h"
#include "iemlib.h"
! #include <math.h>
! #include <stdio.h>
! #include <string.h>
/* --------- gate ---------------------- */
--- 2,11 ----
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
! iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
!
/* --------- gate ---------------------- */
***************
*** 22,26 ****
{
t_object x_obj;
! float x_state;
} t_gate;
--- 15,19 ----
{
t_object x_obj;
! t_float x_state;
} t_gate;
***************
*** 68,72 ****
floatinlet_new(&x->x_obj, &x->x_state);
outlet_new(&x->x_obj, 0);
! x->x_state = (f==0.0)?0:1;
return (x);
}
--- 61,65 ----
floatinlet_new(&x->x_obj, &x->x_state);
outlet_new(&x->x_obj, 0);
! x->x_state = (f==0.0f)?0.0f:1.0f;
return (x);
}
--- NEW FILE: vcf_filter~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------- vcf_filter~ - slow dynamic vcf_filter 1. and 2. order ----------- */
typedef struct _vcf_filter_tilde
{
t_object x_obj;
t_float x_wn1;
t_float x_wn2;
t_float x_msi;
char x_filtname[6];
} t_vcf_filter_tilde;
t_class *vcf_filter_tilde_class;
static t_int *vcf_filter_tilde_perform_snafu(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[4]);
int n = (t_int)(w[6]);
while(n--)
*out++ = *in++;
return(w+7);
}
/*
lp2
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
bp2
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*al*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
rbp2
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*l*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
hp2
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*(wn0 - 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
*/
static t_int *vcf_filter_tilde_perform_lp2(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *lp = (t_float *)(w[2]);
t_float *q = (t_float *)(w[3]);
t_float *out = (t_float *)(w[4]);
t_vcf_filter_tilde *x = (t_vcf_filter_tilde *)(w[5]);
int i, n = (t_int)(w[6]);
t_float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
t_float l, al, l2, rcp;
for(i=0; i<n; i+=4)
{
l = lp[i];
if(q[i] < 0.000001f)
al = 1000000.0f*l;
else if(q[i] > 1000000.0f)
al = 0.000001f*l;
else
al = l/q[i];
l2 = l*l + 1.0f;
rcp = 1.0f/(al + l2);
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn2))
wn2 = 0.0f;
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->x_wn1 = wn1;
x->x_wn2 = wn2;
return(w+7);
}
static t_int *vcf_filter_tilde_perform_bp2(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *lp = (t_float *)(w[2]);
t_float *q = (t_float *)(w[3]);
t_float *out = (t_float *)(w[4]);
t_vcf_filter_tilde *x = (t_vcf_filter_tilde *)(w[5]);
int i, n = (t_int)(w[6]);
t_float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
t_float l, al, l2, rcp;
for(i=0; i<n; i+=4)
{
l = lp[i];
if(q[i] < 0.000001f)
al = 1000000.0f*l;
else if(q[i] > 1000000.0f)
al = 0.000001f*l;
else
al = l/q[i];
l2 = l*l + 1.0f;
rcp = 1.0f/(al + l2);
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*al*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*al*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*al*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*al*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn2))
wn2 = 0.0f;
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->x_wn1 = wn1;
x->x_wn2 = wn2;
return(w+7);
}
static t_int *vcf_filter_tilde_perform_rbp2(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *lp = (t_float *)(w[2]);
t_float *q = (t_float *)(w[3]);
t_float *out = (t_float *)(w[4]);
t_vcf_filter_tilde *x = (t_vcf_filter_tilde *)(w[5]);
int i, n = (t_int)(w[6]);
t_float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
t_float al, l, l2, rcp;
for(i=0; i<n; i+=4)
{
l = lp[i];
if(q[i] < 0.000001f)
al = 1000000.0f*l;
else if(q[i] > 1000000.0f)
al = 0.000001f*l;
else
al = l/q[i];
l2 = l*l + 1.0f;
rcp = 1.0f/(al + l2);
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*l*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*l*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*l*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = rcp*l*(wn0 - wn2);
wn2 = wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn2))
wn2 = 0.0f;
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->x_wn1 = wn1;
x->x_wn2 = wn2;
return(w+7);
}
static t_int *vcf_filter_tilde_perform_hp2(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *lp = (t_float *)(w[2]);
t_float *q = (t_float *)(w[3]);
t_float *out = (t_float *)(w[4]);
t_vcf_filter_tilde *x = (t_vcf_filter_tilde *)(w[5]);
int i, n = (t_int)(w[6]);
t_float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
t_float l, al, l2, rcp, forw;
for(i=0; i<n; i+=4)
{
l = lp[i];
if(q[i] < 0.000001f)
al = 1000000.0f*l;
else if(q[i] > 1000000.0f)
al = 0.000001f*l;
else
al = l/q[i];
l2 = l*l + 1.0f;
rcp = 1.0f/(al + l2);
forw = rcp * (l2 - 1.0f);
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = forw*(wn0 - 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = forw*(wn0 - 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = forw*(wn0 - 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
*out++ = forw*(wn0 - 2.0f*wn1 + wn2);
wn2 = wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn2))
wn2 = 0.0f;
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->x_wn1 = wn1;
x->x_wn2 = wn2;
return(w+7);
}
static void vcf_filter_tilde_dsp(t_vcf_filter_tilde *x, t_signal **sp)
{
if(!strcmp(x->x_filtname,"bp2"))
dsp_add(vcf_filter_tilde_perform_bp2, 6, sp[0]->s_vec, sp[1]->s_vec,
sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
else if(!strcmp(x->x_filtname,"rbp2"))
dsp_add(vcf_filter_tilde_perform_rbp2, 6, sp[0]->s_vec, sp[1]->s_vec,
sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
else if(!strcmp(x->x_filtname,"lp2"))
dsp_add(vcf_filter_tilde_perform_lp2, 6, sp[0]->s_vec, sp[1]->s_vec,
sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
else if(!strcmp(x->x_filtname,"hp2"))
dsp_add(vcf_filter_tilde_perform_hp2, 6, sp[0]->s_vec, sp[1]->s_vec,
sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
else
{
dsp_add(vcf_filter_tilde_perform_snafu, 6, sp[0]->s_vec, sp[1]->s_vec,
sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
post("vcf_filter~-Error: 1. initial-arguments: <sym> kind: lp2, bp2, rbp2, hp2!");
}
}
static void *vcf_filter_tilde_new(t_symbol *filt_typ)
{
t_vcf_filter_tilde *x = (t_vcf_filter_tilde *)pd_new(vcf_filter_tilde_class);
char *c;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
outlet_new(&x->x_obj, &s_signal);
x->x_msi = 0;
x->x_wn1 = 0.0f;
x->x_wn2 = 0.0f;
c = (char *)filt_typ->s_name;
c[5] = 0;
strcpy(x->x_filtname, c);
return(x);
}
void vcf_filter_tilde_setup(void)
{
vcf_filter_tilde_class = class_new(gensym("vcf_filter~"), (t_newmethod)vcf_filter_tilde_new,
0, sizeof(t_vcf_filter_tilde), 0, A_DEFSYM, 0);
CLASS_MAINSIGNALIN(vcf_filter_tilde_class, t_vcf_filter_tilde, x_msi);
class_addmethod(vcf_filter_tilde_class, (t_method)vcf_filter_tilde_dsp, gensym("dsp"), 0);
class_sethelpsymbol(vcf_filter_tilde_class, gensym("iemhelp/help-vcf_filter~"));
}
--- NEW FILE: lp1_t~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* -- lp1_t~ - slow dynamic lowpass-filter 1. order with tau input --- */
typedef struct _lp1_t_tilde
{
t_object x_obj;
t_float yn1;
t_float c0;
t_float c1;
t_float sr;
t_float cur_t;
t_float delta_t;
t_float end_t;
t_float ticks_per_interpol_time;
t_float rcp_ticks;
t_float interpol_time;
int ticks;
int counter_t;
t_float x_msi;
} t_lp1_t_tilde;
t_class *lp1_t_tilde_class;
static void lp1_t_tilde_dsp_tick(t_lp1_t_tilde *x)
{
if(x->counter_t)
{
if(x->counter_t <= 1)
{
x->cur_t = x->end_t;
x->counter_t = 0;
}
else
{
x->counter_t--;
x->cur_t += x->delta_t;
}
if(x->cur_t == 0.0f)
x->c1 = 0.0f;
else
x->c1 = exp((x->sr)/x->cur_t);
x->c0 = 1.0f - x->c1;
}
}
static t_int *lp1_t_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_lp1_t_tilde *x = (t_lp1_t_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float yn0, yn1=x->yn1;
t_float c0=x->c0, c1=x->c1;
lp1_t_tilde_dsp_tick(x);
for(i=0; i<n; i++)
{
yn0 = (*in++)*c0 + yn1*c1;
*out++ = yn0;
yn1 = yn0;
}
/* NAN protect */
if(IEM_DENORMAL(yn1))
yn1 = 0.0f;
x->yn1 = yn1;
return(w+5);
}
static t_int *lp1_t_tilde_perf8(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_lp1_t_tilde *x = (t_lp1_t_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float yn[9];
t_float c0=x->c0, c1=x->c1;
lp1_t_tilde_dsp_tick(x);
yn[0] = x->yn1;
for(i=0; i<n; i+=8, in+=8, out+=8)
{
yn[1] = in[0]*c0 + yn[0]*c1;
out[0] = yn[1];
yn[2] = in[1]*c0 + yn[1]*c1;
out[1] = yn[2];
yn[3] = in[2]*c0 + yn[2]*c1;
out[2] = yn[3];
yn[4] = in[3]*c0 + yn[3]*c1;
out[3] = yn[4];
yn[5] = in[4]*c0 + yn[4]*c1;
out[4] = yn[5];
yn[6] = in[5]*c0 + yn[5]*c1;
out[5] = yn[6];
yn[7] = in[6]*c0 + yn[6]*c1;
out[6] = yn[7];
yn[8] = in[7]*c0 + yn[7]*c1;
out[7] = yn[8];
yn[0] = yn[8];
}
/* NAN protect */
if(IEM_DENORMAL(yn[0]))
yn[0] = 0.0f;
x->yn1 = yn[0];
return(w+5);
}
static void lp1_t_tilde_ft2(t_lp1_t_tilde *x, t_floatarg t)
{
int i = (int)((x->ticks_per_interpol_time)*t);
x->interpol_time = t;
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
}
static void lp1_t_tilde_ft1(t_lp1_t_tilde *x, t_floatarg time_const)
{
if(time_const < 0.0f)
time_const = 0.0f;
if(time_const != x->cur_t)
{
x->end_t = time_const;
x->counter_t = x->ticks;
x->delta_t = (time_const - x->cur_t) * x->rcp_ticks;
}
}
static void lp1_t_tilde_dsp(t_lp1_t_tilde *x, t_signal **sp)
{
int i, n=(int)sp[0]->s_n;
x->sr = -1000.0f / (t_float)(sp[0]->s_sr);
x->ticks_per_interpol_time = 0.001f * (t_float)(sp[0]->s_sr) / (t_float)n;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
if(x->cur_t == 0.0f)
x->c1 = 0.0f;
else
x->c1 = exp((x->sr)/x->cur_t);
x->c0 = 1.0f - x->c1;
if(n&7)
dsp_add(lp1_t_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
else
dsp_add(lp1_t_tilde_perf8, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
}
static void *lp1_t_tilde_new(t_symbol *s, int argc, t_atom *argv)
{
t_lp1_t_tilde *x = (t_lp1_t_tilde *)pd_new(lp1_t_tilde_class);
int i;
t_float time_const=0.0f, interpol=0.0f;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
outlet_new(&x->x_obj, &s_signal);
x->x_msi = 0;
x->counter_t = 1;
x->delta_t = 0.0f;
x->interpol_time = 0.0f;
x->yn1 = 0.0f;
x->sr = -1.0f / 44.1f;
if((argc >= 1)&&IS_A_FLOAT(argv,0))
time_const = (t_float)atom_getfloatarg(0, argc, argv);
if((argc >= 2)&&IS_A_FLOAT(argv,1))
interpol = (t_float)atom_getfloatarg(1, argc, argv);
if(time_const < 0.0f)
time_const = 0.0f;
x->cur_t = time_const;
if(time_const == 0.0f)
x->c1 = 0.0f;
else
x->c1 = exp((x->sr)/time_const);
x->c0 = 1.0f - x->c1;
if(interpol < 0.0f)
interpol = 0.0f;
x->interpol_time = interpol;
x->ticks_per_interpol_time = 0.5f;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
x->end_t = x->cur_t;
return (x);
}
void lp1_t_tilde_setup(void)
{
lp1_t_tilde_class = class_new(gensym("lp1_t~"), (t_newmethod)lp1_t_tilde_new,
0, sizeof(t_lp1_t_tilde), 0, A_GIMME, 0);
CLASS_MAINSIGNALIN(lp1_t_tilde_class, t_lp1_t_tilde, x_msi);
class_addmethod(lp1_t_tilde_class, (t_method)lp1_t_tilde_dsp, gensym("dsp"), 0);
class_addmethod(lp1_t_tilde_class, (t_method)lp1_t_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(lp1_t_tilde_class, (t_method)lp1_t_tilde_ft2, gensym("ft2"), A_FLOAT, 0);
class_sethelpsymbol(lp1_t_tilde_class, gensym("iemhelp/help-lp1_t~"));
}
Index: biquad_freq_resp.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/biquad_freq_resp.c,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** biquad_freq_resp.c 11 Apr 2006 16:24:09 -0000 1.5
--- biquad_freq_resp.c 8 Nov 2006 13:24:09 -0000 1.6
***************
*** 4,18 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
- #include <stdio.h>
- #include <string.h>
/* ------------------------ biquad_freq_resp ------------------- */
--- 4,11 ----
***************
*** 22,30 ****
{
t_object x_obj;
! float a0;
! float a1;
! float a2;
! float b1;
! float b2;
t_outlet *x_out_re;
t_outlet *x_out_im;
--- 15,23 ----
{
t_object x_obj;
! t_float a0;
! t_float a1;
! t_float a2;
! t_float b1;
! t_float b2;
t_outlet *x_out_re;
t_outlet *x_out_im;
***************
*** 33,40 ****
static t_class *biquad_freq_resp_class;
! static void biquad_freq_resp_float(t_biquad_freq_resp *x, t_float f)
{
! float re1, im1, re2, im2;
! float c, s, a;
if(f < 0.0f)
--- 26,33 ----
static t_class *biquad_freq_resp_class;
! static void biquad_freq_resp_float(t_biquad_freq_resp *x, t_floatarg f)
{
! t_float re1, im1, re2, im2;
! t_float c, s, a;
if(f < 0.0f)
--- NEW FILE: iem_cot4~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ------------------------ iem_cot4~ ----------------------------- */
t_float *iem_cot4_tilde_table_cos=(t_float *)0L;
t_float *iem_cot4_tilde_table_sin=(t_float *)0L;
static t_class *iem_cot4_tilde_class;
typedef struct _iem_cot4_tilde
{
t_object x_obj;
t_float x_sr;
t_float x_msi;
} t_iem_cot4_tilde;
static t_int *iem_cot4_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_float norm_freq;
t_float hout;
t_iem_cot4_tilde *x = (t_iem_cot4_tilde *)(w[3]);
t_float sr=x->x_sr;
int n = (int)(w[4]);
t_float *ctab = iem_cot4_tilde_table_cos, *stab = iem_cot4_tilde_table_sin;
t_float *caddr, *saddr, cf1, cf2, sf1, sf2, frac;
double dphase;
int normhipart;
int32 mytfi;
union tabfudge tf;
tf.tf_d = UNITBIT32;
normhipart = tf.tf_i[HIOFFSET];
#if 0 /* this is the readable version of the code. */
while (n--)
{
norm_freq = *in * sr;
if(norm_freq < 0.0001f)
norm_freq = 0.0001f;
else if(norm_freq > 0.9f)
norm_freq = 0.9f;
dphase = (double)(norm_freq * (t_float)(COSTABSIZE)) + UNITBIT32;
tf.tf_d = dphase;
mytfi = tf.tf_i[HIOFFSET] & (COSTABSIZE-1);
saddr = stab + (mytfi);
caddr = ctab + (mytfi);
tf.tf_i[HIOFFSET] = normhipart;
frac = tf.tf_d - UNITBIT32;
sf1 = saddr[0];
sf2 = saddr[1];
cf1 = caddr[0];
cf2 = caddr[1];
in++;
*out++ = (cf1 + frac * (cf2 - cf1))/(sf1 + frac * (sf2 - sf1));
}
#endif
#if 1 /* this is the same, unwrapped by hand. prolog beg*/
n /= 4;
norm_freq = *in * sr;
if(norm_freq < 0.0001f)
norm_freq = 0.0001f;
else if(norm_freq > 0.9f)
norm_freq = 0.9f;
dphase = (double)(norm_freq * (t_float)(COSTABSIZE)) + UNITBIT32;
tf.tf_d = dphase;
mytfi = tf.tf_i[HIOFFSET] & (COSTABSIZE-1);
saddr = stab + (mytfi);
caddr = ctab + (mytfi);
tf.tf_i[HIOFFSET] = normhipart;
in += 4; /*prolog end*/
while (--n)
{
norm_freq = *in * sr;
if(norm_freq < 0.0001f)
norm_freq = 0.0001f;
else if(norm_freq > 0.9f)
norm_freq = 0.9f;
dphase = (double)(norm_freq * (t_float)(COSTABSIZE)) + UNITBIT32;
frac = tf.tf_d - UNITBIT32;
tf.tf_d = dphase;
sf1 = saddr[0];
sf2 = saddr[1];
cf1 = caddr[0];
cf2 = caddr[1];
mytfi = tf.tf_i[HIOFFSET] & (COSTABSIZE-1);
saddr = stab + (mytfi);
caddr = ctab + (mytfi);
hout = (cf1 + frac * (cf2 - cf1))/(sf1 + frac * (sf2 - sf1));
*out++ = hout;
*out++ = hout;
*out++ = hout;
*out++ = hout;
in += 4;
tf.tf_i[HIOFFSET] = normhipart;
}/*epilog beg*/
frac = tf.tf_d - UNITBIT32;
sf1 = saddr[0];
sf2 = saddr[1];
cf1 = caddr[0];
cf2 = caddr[1];
hout = (cf1 + frac * (cf2 - cf1))/(sf1 + frac * (sf2 - sf1));
*out++ = hout;
*out++ = hout;
*out++ = hout;
*out++ = hout;
/*epilog end*/
#endif
return (w+5);
}
static void iem_cot4_tilde_dsp(t_iem_cot4_tilde *x, t_signal **sp)
{
x->x_sr = 2.0f / (t_float)sp[0]->s_sr;
dsp_add(iem_cot4_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n);
}
static void iem_cot4_tilde_maketable(void)
{
int i;
t_float *fp, phase, fff, phsinc = 0.5*3.141592653 / ((t_float)COSTABSIZE);
union tabfudge tf;
if(!iem_cot4_tilde_table_sin)
{
iem_cot4_tilde_table_sin = (t_float *)getbytes(sizeof(t_float) * (COSTABSIZE+1));
for(i=COSTABSIZE+1, fp=iem_cot4_tilde_table_sin, phase=0; i--; fp++, phase+=phsinc)
*fp = sin(phase);
}
if(!iem_cot4_tilde_table_cos)
{
iem_cot4_tilde_table_cos = (t_float *)getbytes(sizeof(t_float) * (COSTABSIZE+1));
for(i=COSTABSIZE+1, fp=iem_cot4_tilde_table_cos, phase=0; i--; fp++, phase+=phsinc)
*fp = cos(phase);
}
tf.tf_d = UNITBIT32 + 0.5;
if((unsigned)tf.tf_i[LOWOFFSET] != 0x80000000)
bug("iem_cot4~: unexpected machine alignment");
}
static void *iem_cot4_tilde_new(void)
{
t_iem_cot4_tilde *x = (t_iem_cot4_tilde *)pd_new(iem_cot4_tilde_class);
outlet_new(&x->x_obj, gensym("signal"));
x->x_msi = 0;
return (x);
}
void iem_cot4_tilde_setup(void)
{
iem_cot4_tilde_class = class_new(gensym("iem_cot4~"), (t_newmethod)iem_cot4_tilde_new, 0,
sizeof(t_iem_cot4_tilde), 0, 0);
class_addcreator((t_newmethod)iem_cot4_tilde_new, gensym("iem_cot~"), 0);
CLASS_MAINSIGNALIN(iem_cot4_tilde_class, t_iem_cot4_tilde, x_msi);
class_addmethod(iem_cot4_tilde_class, (t_method)iem_cot4_tilde_dsp, gensym("dsp"), 0);
iem_cot4_tilde_maketable();
class_sethelpsymbol(iem_cot4_tilde_class, gensym("iemhelp/help-iem_cot4~"));
}
--- NEW FILE: iem_delay~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
/* -------------------------- iem_delay~ ------------------------------ */
static t_class *iem_delay_tilde_class;
#define IEMDELAY_DEF_VEC_SIZE 64
typedef struct _iem_delay_tilde
{
t_object x_obj;
int x_mallocsize;
t_float x_max_delay_ms;
t_float x_current_delay_ms;
t_float *x_begmem1;
t_float *x_begmem2;
int x_writeindex;
int x_blocksize;
int x_delay_samples;
t_float x_sr;
t_float x_msi;
} t_iem_delay_tilde;
static void iem_delay_tilde_cur_del(t_iem_delay_tilde *x, t_floatarg f)
{
if(f < 0.0f)
f = 0.0f;
else if(f > x->x_max_delay_ms)
f = x->x_max_delay_ms;
x->x_current_delay_ms = f;
x->x_delay_samples = (int)(0.001f*x->x_sr * f + 0.5f);
}
static t_int *iem_delay_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_iem_delay_tilde *x = (t_iem_delay_tilde *)(w[3]);
int n=(int)(w[4]);
int writeindex = x->x_writeindex;
t_float *vec1, *vec2, *vec3;
vec1 = x->x_begmem1 + writeindex;
vec2 = x->x_begmem2 + writeindex;
vec3 = x->x_begmem2 + writeindex - x->x_delay_samples;
writeindex += n;
while(n--)
{
*vec1++ = *vec2++ = *in++;
*out++ = *vec3++;
}
if(writeindex >= x->x_mallocsize)
{
writeindex -= x->x_mallocsize;
}
x->x_writeindex = writeindex;
return(w+5);
}
static t_int *iem_delay_tilde_perf8(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_iem_delay_tilde *x = (t_iem_delay_tilde *)(w[3]);
int i, n=(int)(w[4]);
int writeindex = x->x_writeindex;
t_float *vec1, *vec2;
vec1 = x->x_begmem1 + writeindex;
vec2 = x->x_begmem2 + writeindex;
for(i=0; i<n; i+=8)
{
*vec1++ = *vec2++ = *in++;
*vec1++ = *vec2++ = *in++;
*vec1++ = *vec2++ = *in++;
*vec1++ = *vec2++ = *in++;
*vec1++ = *vec2++ = *in++;
*vec1++ = *vec2++ = *in++;
*vec1++ = *vec2++ = *in++;
*vec1++ = *vec2++ = *in++;
}
vec2 = x->x_begmem2 + writeindex - x->x_delay_samples;
for(i=0; i<n; i+=8)
{
*out++ = *vec2++;
*out++ = *vec2++;
*out++ = *vec2++;
*out++ = *vec2++;
*out++ = *vec2++;
*out++ = *vec2++;
*out++ = *vec2++;
*out++ = *vec2++;
}
writeindex += n;
if(writeindex >= x->x_mallocsize)
{
writeindex -= x->x_mallocsize;
}
x->x_writeindex = writeindex;
return(w+5);
}
static void iem_delay_tilde_dsp(t_iem_delay_tilde *x, t_signal **sp)
{
int blocksize = sp[0]->s_n, i;
if(!x->x_blocksize)/*first time*/
{
int nsamps = x->x_max_delay_ms * (t_float)sp[0]->s_sr * 0.001f;
if(nsamps < 1)
nsamps = 1;
nsamps += ((- nsamps) & (blocksize - 1));
nsamps += blocksize;
x->x_mallocsize = nsamps;
x->x_begmem1 = (t_float *)getbytes(2 * x->x_mallocsize * sizeof(t_float));
x->x_begmem2 = x->x_begmem1 + x->x_mallocsize;
post("beginn = %x", (unsigned long)x->x_begmem1);
x->x_writeindex = blocksize;
x->x_sr = (t_float)sp[0]->s_sr;
x->x_blocksize = blocksize;
x->x_delay_samples = (int)(0.001f*x->x_sr * x->x_current_delay_ms + 0.5f);
}
else if((x->x_blocksize != blocksize) || ((t_float)sp[0]->s_sr != x->x_sr))
{
int nsamps = x->x_max_delay_ms * (t_float)sp[0]->s_sr * 0.001f;
if(nsamps < 1)
nsamps = 1;
nsamps += ((- nsamps) & (blocksize - 1));
nsamps += blocksize;
x->x_begmem1 = (t_float *)resizebytes(x->x_begmem1, 2*x->x_mallocsize*sizeof(t_float), 2*nsamps*sizeof(t_float));
x->x_mallocsize = nsamps;
x->x_begmem2 = x->x_begmem1 + x->x_mallocsize;
post("beginn = %x", (unsigned long)x->x_begmem1);
if(x->x_writeindex >= nsamps)
x->x_writeindex -= nsamps;
x->x_sr = (t_float)sp[0]->s_sr;
x->x_blocksize = blocksize;
x->x_delay_samples = (int)(0.001f*x->x_sr * x->x_current_delay_ms + 0.5f);
}
if(blocksize&7)
dsp_add(iem_delay_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, blocksize);
else
dsp_add(iem_delay_tilde_perf8, 4, sp[0]->s_vec, sp[1]->s_vec, x, blocksize);
}
static void *iem_delay_tilde_new(t_floatarg max_delay_ms, t_floatarg current_delay_ms)
{
t_iem_delay_tilde *x = (t_iem_delay_tilde *)pd_new(iem_delay_tilde_class);
int nsamps;
if(max_delay_ms < 2.0f)
max_delay_ms = 2.0f;
x->x_max_delay_ms = max_delay_ms;
if(current_delay_ms < 0.0f)
current_delay_ms = 0.0f;
else if(current_delay_ms > max_delay_ms)
current_delay_ms = max_delay_ms;
x->x_current_delay_ms = current_delay_ms;
nsamps = max_delay_ms * sys_getsr() * 0.001f;
if(nsamps < 1)
nsamps = 1;
nsamps += ((- nsamps) & (IEMDELAY_DEF_VEC_SIZE - 1));
nsamps += IEMDELAY_DEF_VEC_SIZE;
x->x_mallocsize = nsamps;
x->x_begmem1 = (t_float *)getbytes(2 * x->x_mallocsize * sizeof(t_float));
x->x_begmem2 = x->x_begmem1 + x->x_mallocsize;
x->x_writeindex = IEMDELAY_DEF_VEC_SIZE;
x->x_blocksize = 0;
x->x_sr = 0.0f;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
outlet_new(&x->x_obj, &s_signal);
x->x_msi = 0.0f;
return (x);
}
static void iem_delay_tilde_free(t_iem_delay_tilde *x)
{
freebytes(x->x_begmem1, 2 * x->x_mallocsize * sizeof(t_float));
}
void iem_delay_tilde_setup(void)
{
iem_delay_tilde_class = class_new(gensym("iem_delay~"), (t_newmethod)iem_delay_tilde_new, (t_method)iem_delay_tilde_free,
sizeof(t_iem_delay_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(iem_delay_tilde_class, t_iem_delay_tilde, x_msi);
class_addmethod(iem_delay_tilde_class, (t_method)iem_delay_tilde_dsp, gensym("dsp"), 0);
class_addmethod(iem_delay_tilde_class, (t_method)iem_delay_tilde_cur_del, gensym("ft1"), A_FLOAT, 0);
}
--- NEW FILE: sin_phase~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
/* --- sin_phase~ - output the phase-difference between --- */
/* --- 2 sinewaves with the same frequency in samples ----- */
/* --- as a signal ---------------------------------------- */
typedef struct _sin_phase_tilde
{
t_object x_obj;
t_float x_prev1;
t_float x_prev2;
t_float x_cur_out;
int x_counter1;
int x_counter2;
int x_state1;
int x_state2;
t_float x_msi;
} t_sin_phase_tilde;
t_class *sin_phase_tilde_class;
static t_int *sin_phase_tilde_perform(t_int *w)
{
t_float *in1 = (t_float *)(w[1]);
t_float *in2 = (t_float *)(w[2]);
t_float *out = (t_float *)(w[3]);
t_sin_phase_tilde *x = (t_sin_phase_tilde *)(w[4]);
int i, n = (t_int)(w[5]);
t_float prev1=x->x_prev1;
t_float prev2=x->x_prev2;
t_float cur_out=x->x_cur_out;
int counter1=x->x_counter1;
int counter2=x->x_counter2;
int state1=x->x_state1;
int state2=x->x_state2;
for(i=0; i<n; i++)
{
if((in1[i] >= 0.0f) && (prev1 < 0.0f))
{/* pos. zero cross of sig_in_1 */
state1 = 1;
counter1 = 0;
}
else if((in1[i] < 0.0f) && (prev1 >= 0.0f))
{/* neg. zero cross of sig_in_1 */
state2 = 1;
counter2 = 0;
}
if((in2[i] >= 0.0f) && (prev2 < 0.0f))
{/* pos. zero cross of sig_in_2 */
state1 = 0;
cur_out = (t_float)(counter1);
counter1 = 0;
}
else if((in2[i] < 0.0f) && (prev2 >= 0.0f))
{/* neg. zero cross of sig_in_2 */
state2 = 0;
cur_out = (t_float)(counter2);
counter2 = 0;
}
if(state1)
counter1++;
if(state2)
counter2++;
prev1 = in1[i];
prev2 = in2[i];
out[i] = cur_out;
}
x->x_prev1 = prev1;
x->x_prev2 = prev2;
x->x_cur_out = cur_out;
x->x_counter1 = counter1;
x->x_counter2 = counter2;
x->x_state1 = state1;
x->x_state2 = state2;
return(w+6);
}
static void sin_phase_tilde_dsp(t_sin_phase_tilde *x, t_signal **sp)
{
dsp_add(sin_phase_tilde_perform, 5, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, x, sp[0]->s_n);
}
static void *sin_phase_tilde_new(void)
{
t_sin_phase_tilde *x = (t_sin_phase_tilde *)pd_new(sin_phase_tilde_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
outlet_new(&x->x_obj, &s_signal);
x->x_prev1 = 0.0f;
x->x_prev2 = 0.0f;
x->x_cur_out = 0.0f;
x->x_counter1 = 0;
x->x_counter2 = 0;
x->x_state1 = 0;
x->x_state2 = 0;
x->x_msi = 0;
return (x);
}
void sin_phase_tilde_setup(void)
{
sin_phase_tilde_class = class_new(gensym("sin_phase~"), (t_newmethod)sin_phase_tilde_new,
0, sizeof(t_sin_phase_tilde), 0, 0);
CLASS_MAINSIGNALIN(sin_phase_tilde_class, t_sin_phase_tilde, x_msi);
class_addmethod(sin_phase_tilde_class, (t_method)sin_phase_tilde_dsp, gensym("dsp"), 0);
class_sethelpsymbol(sin_phase_tilde_class, gensym("iemhelp/help-sin_phase~"));
}
Index: iemlib1.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/iemlib1.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** iemlib1.c 11 Apr 2006 16:24:09 -0000 1.4
--- iemlib1.c 8 Nov 2006 13:24:09 -0000 1.5
***************
*** 4,12 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
--- 4,7 ----
***************
*** 25,49 ****
void db2v_setup(void);
void f2note_setup(void);
void forpp_setup(void);
void gate_setup(void);
! void sigfilter_setup(void);
! void sigFIR_setup(void);
! void sighml_shelf_setup(void);
! void sigiem_cot4_setup(void);
! void sigiem_delay_setup(void);
! void sigiem_sqrt4_setup(void);
! void sigiem_pow4_setup(void);
! void siglp1_t_setup(void);
! void sigmov_avrg_kern_setup(void);
! void sigpara_bp2_setup(void);
! void sigpeakenv_setup(void);
! void sigprvu_setup(void);
! void sigpvu_setup(void);
! void sigrvu_setup(void);
! void sigsin_phase_setup(void);
! void sigvcf_filter_setup(void);
void soundfile_info_setup(void);
void split_setup(void);
void v2db_setup(void);
/* ------------------------ setup routine ------------------------- */
--- 20,44 ----
void db2v_setup(void);
void f2note_setup(void);
+ void filter_tilde_setup(void);
+ void FIR_tilde_setup(void);
void forpp_setup(void);
void gate_setup(void);
! void hml_shelf_tilde_setup(void);
! void iem_cot4_tilde_setup(void);
! void iem_delay_tilde_setup(void);
! void iem_pow4_tilde_setup(void);
! void iem_sqrt4_tilde_setup(void);
! void lp1_t_tilde_setup(void);
! void mov_avrg_kern_tilde_setup(void);
! void para_bp2_tilde_setup(void);
! void peakenv_tilde_setup(void);
! void prvu_tilde_setup(void);
! void pvu_tilde_setup(void);
! void rvu_tilde_setup(void);
! void sin_phase_tilde_setup(void);
void soundfile_info_setup(void);
void split_setup(void);
void v2db_setup(void);
+ void vcf_filter_tilde_setup(void);
/* ------------------------ setup routine ------------------------- */
***************
*** 57,81 ****
db2v_setup();
f2note_setup();
forpp_setup();
gate_setup();
! sigfilter_setup();
! sigFIR_setup();
! sighml_shelf_setup();
! sigiem_cot4_setup();
! sigiem_delay_setup();
! sigiem_sqrt4_setup();
! sigiem_pow4_setup();
! siglp1_t_setup();
! sigmov_avrg_kern_setup();
! sigpara_bp2_setup();
! sigpeakenv_setup();
! sigprvu_setup();
! sigpvu_setup();
! sigrvu_setup();
! sigsin_phase_setup();
! sigvcf_filter_setup();
soundfile_info_setup();
split_setup();
v2db_setup();
post("iemlib1 (R-1.16) library loaded! (c) Thomas Musil 05.2005");
--- 52,76 ----
db2v_setup();
f2note_setup();
+ filter_tilde_setup();
+ FIR_tilde_setup();
forpp_setup();
gate_setup();
! hml_shelf_tilde_setup();
! iem_cot4_tilde_setup();
! iem_delay_tilde_setup();
! iem_pow4_tilde_setup();
! iem_sqrt4_tilde_setup();
! lp1_t_tilde_setup();
! mov_avrg_kern_tilde_setup();
! para_bp2_tilde_setup();
! peakenv_tilde_setup();
! prvu_tilde_setup();
! pvu_tilde_setup();
! rvu_tilde_setup();
! sin_phase_tilde_setup();
soundfile_info_setup();
split_setup();
v2db_setup();
+ vcf_filter_tilde_setup();
post("iemlib1 (R-1.16) library loaded! (c) Thomas Musil 05.2005");
--- NEW FILE: FIR~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
/* ---------- FIR~ - FIR-filter with table-coef ----------- */
typedef struct _FIR_tilde
{
t_object x_obj;
t_float *x_coef_beg;
t_float *x_history_beg;
int x_rw_index;
int x_fir_order;
t_symbol *x_table_name;
t_float x_msi;
} t_FIR_tilde;
t_class *FIR_tilde_class;
static t_int *FIR_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_FIR_tilde *x = (t_FIR_tilde *)(w[3]);
int n = (t_int)(w[4]);
int rw_index = x->x_rw_index;
int i, j;
int order = x->x_fir_order;
int ord16 = order / 16;
t_float sum=0.0f;
t_float *coef = x->x_coef_beg;
t_float *write_hist1=x->x_history_beg;
t_float *write_hist2;
t_float *read_hist;
t_float *coef_vec;
t_float *hist_vec;
if(!coef)
goto FIR_tildeperfzero;
write_hist1 = x->x_history_beg;
write_hist2 = write_hist1 + order;
read_hist = write_hist2;
for(i=0; i<n; i++)
{
write_hist1[rw_index] = in[i];
write_hist2[rw_index] = in[i];
sum = 0.0f;
coef_vec = coef;
hist_vec = &read_hist[rw_index];
for(j=0; j<ord16; j++)
{
sum += coef_vec[0] * hist_vec[0];
sum += coef_vec[1] * hist_vec[-1];
sum += coef_vec[2] * hist_vec[-2];
sum += coef_vec[3] * hist_vec[-3];
sum += coef_vec[4] * hist_vec[-4];
sum += coef_vec[5] * hist_vec[-5];
sum += coef_vec[6] * hist_vec[-6];
sum += coef_vec[7] * hist_vec[-7];
sum += coef_vec[8] * hist_vec[-8];
sum += coef_vec[9] * hist_vec[-9];
sum += coef_vec[10] * hist_vec[-10];
sum += coef_vec[11] * hist_vec[-11];
sum += coef_vec[12] * hist_vec[-12];
sum += coef_vec[13] * hist_vec[-13];
sum += coef_vec[14] * hist_vec[-14];
sum += coef_vec[15] * hist_vec[-15];
coef_vec += 16;
hist_vec -= 16;
}
for(j=ord16*16; j<order; j++)
{
sum += coef[j] * read_hist[rw_index-j];
}
out[i] = sum;
rw_index++;
if(rw_index >= order)
rw_index -= order;
}
x->x_rw_index = rw_index;
return(w+5);
FIR_tildeperfzero:
while(n--)
*out++ = 0.0f;
return(w+5);
}
void FIR_tilde_set(t_FIR_tilde *x, t_symbol *table_name, t_floatarg forder)
{
t_garray *ga;
int table_size;
int order = (int)forder;
x->x_table_name = table_name;
if(!(ga = (t_garray *)pd_findbyclass(x->x_table_name, garray_class)))
{
if(*table_name->s_name)
error("FIR~: %s: no such table~", x->x_table_name->s_name);
x->x_coef_beg = 0;
}
else if(!garray_getfloatarray(ga, &table_size, &x->x_coef_beg))
{
error("%s: bad template for FIR~", x->x_table_name->s_name);
x->x_coef_beg = 0;
}
else if(table_size < order)
{
error("FIR~: tablesize %d < order %d !!!!", table_size, order);
x->x_coef_beg = 0;
}
else
garray_usedindsp(ga);
x->x_rw_index = 0;
if(order > x->x_fir_order)/* resize */
x->x_history_beg = (t_float *)resizebytes(x->x_history_beg, 2*x->x_fir_order*sizeof(t_float), 2*order*sizeof(float));
x->x_fir_order = order;
}
static void FIR_tilde_dsp(t_FIR_tilde *x, t_signal **sp)
{
FIR_tilde_set(x, x->x_table_name, x->x_fir_order);
dsp_add(FIR_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n);
}
static void *FIR_tilde_new(t_symbol *ref, t_floatarg np)
{
t_FIR_tilde *x = (t_FIR_tilde *)pd_new(FIR_tilde_class);
outlet_new(&x->x_obj, &s_signal);
x->x_msi = 0;
x->x_table_name = ref;
x->x_coef_beg = 0;
if((int)np < 1)
np = 1.0;
x->x_fir_order = (int)np;
x->x_history_beg = (t_float *)getbytes((2*x->x_fir_order)*sizeof(t_float));
x->x_rw_index = 0;
return(x);
}
static void FIR_tilde_free(t_FIR_tilde *x)
{
if(x->x_history_beg)
freebytes(x->x_history_beg, (2*x->x_fir_order)*sizeof(t_float));
}
void FIR_tilde_setup(void)
{
FIR_tilde_class = class_new(gensym("FIR~"), (t_newmethod)FIR_tilde_new,
(t_method)FIR_tilde_free, sizeof(t_FIR_tilde), 0, A_DEFSYM, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(FIR_tilde_class, t_FIR_tilde, x_msi);
class_addmethod(FIR_tilde_class, (t_method)FIR_tilde_dsp, gensym("dsp"), 0);
class_addmethod(FIR_tilde_class, (t_method)FIR_tilde_set,
gensym("set"), A_SYMBOL, A_FLOAT, 0);
class_sethelpsymbol(FIR_tilde_class, gensym("iemhelp/help-FIR~"));
}
Index: split.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/split.c,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** split.c 11 Apr 2006 16:24:09 -0000 1.5
--- split.c 8 Nov 2006 13:24:10 -0000 1.6
***************
*** 4,18 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
#include "iemlib.h"
! #include <math.h>
! #include <stdio.h>
! #include <string.h>
/* --------- split is like moses ----------- */
--- 4,11 ----
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
!
/* --------- split is like moses ----------- */
--- NEW FILE: rvu~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------------- rvu~ - simple peak&rms-vu-meter. ----------------- */
typedef struct _rvu_tilde
{
t_object x_obj;
void *x_clock_metro;
t_float x_metro_time;
t_float x_sum_rms;
t_float x_old_rms;
t_float x_rcp;
t_float x_sr;
t_float x_release_time;
t_float x_c1;
int x_started;
t_float x_msi;
} t_rvu_tilde;
t_class *rvu_tilde_class;
static void rvu_tilde_tick_metro(t_rvu_tilde *x);
static void rvu_tilde_reset(t_rvu_tilde *x)
{
outlet_float(x->x_obj.ob_outlet, -99.9f);
x->x_sum_rms = 0.0f;
x->x_old_rms = 0.0f;
clock_delay(x->x_clock_metro, x->x_metro_time);
}
static void rvu_tilde_stop(t_rvu_tilde *x)
{
clock_unset(x->x_clock_metro);
x->x_started = 0;
}
static void rvu_tilde_start(t_rvu_tilde *x)
{
clock_delay(x->x_clock_metro, x->x_metro_time);
x->x_started = 1;
}
static void rvu_tilde_float(t_rvu_tilde *x, t_floatarg f)
{
if(f == 0.0f)
{
clock_unset(x->x_clock_metro);
x->x_started = 0;
}
else
{
clock_delay(x->x_clock_metro, x->x_metro_time);
x->x_started = 1;
}
}
static void rvu_tilde_t_release(t_rvu_tilde *x, t_floatarg release_time)
{
if(release_time <= 5.0f)
release_time = 5.0f;
x->x_release_time = release_time;
x->x_c1 = exp(-2.0f*x->x_metro_time/x->x_release_time);
}
static void rvu_tilde_t_metro(t_rvu_tilde *x, t_floatarg metro_time)
{
if(metro_time <= 5.0f)
metro_time = 5.0f;
x->x_metro_time = metro_time;
x->x_c1 = exp(-2.0f*x->x_metro_time/x->x_release_time);
x->x_rcp = 1.0f/(x->x_sr*x->x_metro_time);
}
static t_int *rvu_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_rvu_tilde *x = (t_rvu_tilde *)(w[2]);
int n = (int)(w[3]);
t_float pow, sum=x->x_sum_rms;
int i;
if(x->x_started)
{
for(i=0; i<n; i++)
{
sum += in[i]*in[i];
}
x->x_sum_rms = sum;
}
return(w+4);
}
static void rvu_tilde_dsp(t_rvu_tilde *x, t_signal **sp)
{
x->x_sr = 0.001*(t_float)sp[0]->s_sr;
x->x_rcp = 1.0f/(x->x_sr*x->x_metro_time);
dsp_add(rvu_tilde_perform, 3, sp[0]->s_vec, x, sp[0]->s_n);
clock_delay(x->x_clock_metro, x->x_metro_time);
}
static void rvu_tilde_tick_metro(t_rvu_tilde *x)
{
t_float dbr, cur_rms, c1=x->x_c1;
cur_rms = (1.0f - c1)*x->x_sum_rms*x->x_rcp + c1*x->x_old_rms;
/* NAN protect */
if(IEM_DENORMAL(cur_rms))
cur_rms = 0.0f;
if(cur_rms <= 0.0000000001f)
dbr = -99.9f;
else if(cur_rms > 1000000.0f)
{
dbr = 60.0f;
x->x_old_rms = 1000000.0f;
}
else
dbr = 4.3429448195f*log(cur_rms);
x->x_sum_rms = 0.0f;
x->x_old_rms = cur_rms;
outlet_float(x->x_obj.ob_outlet, dbr);
clock_delay(x->x_clock_metro, x->x_metro_time);
}
static void rvu_tilde_ff(t_rvu_tilde *x)
{
clock_free(x->x_clock_metro);
}
static void *rvu_tilde_new(t_floatarg metro_time, t_floatarg release_time)
{
t_rvu_tilde *x=(t_rvu_tilde *)pd_new(rvu_tilde_class);
if(metro_time <= 0.0f)
metro_time = 300.0f;
if(metro_time <= 5.0f)
metro_time = 5.0f;
if(release_time <= 0.0f)
release_time = 300.0f;
if(release_time <= 5.0f)
release_time = 5.0f;
x->x_metro_time = metro_time;
x->x_release_time = release_time;
x->x_c1 = exp(-2.0f*x->x_metro_time/x->x_release_time);
x->x_sum_rms = 0.0f;
x->x_old_rms = 0.0f;
x->x_sr = 44.1f;
x->x_rcp = 1.0f/(x->x_sr*x->x_metro_time);
x->x_clock_metro = clock_new(x, (t_method)rvu_tilde_tick_metro);
x->x_started = 1;
outlet_new(&x->x_obj, &s_float);
x->x_msi = 0.0f;
return(x);
}
void rvu_tilde_setup(void)
{
rvu_tilde_class = class_new(gensym("rvu~"), (t_newmethod)rvu_tilde_new,
(t_method)rvu_tilde_ff, sizeof(t_rvu_tilde), 0,
A_DEFFLOAT, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(rvu_tilde_class, t_rvu_tilde, x_msi);
class_addmethod(rvu_tilde_class, (t_method)rvu_tilde_dsp, gensym("dsp"), 0);
class_addfloat(rvu_tilde_class, rvu_tilde_float);
class_addmethod(rvu_tilde_class, (t_method)rvu_tilde_reset, gensym("reset"), 0);
class_addmethod(rvu_tilde_class, (t_method)rvu_tilde_start, gensym("start"), 0);
class_addmethod(rvu_tilde_class, (t_method)rvu_tilde_stop, gensym("stop"), 0);
class_addmethod(rvu_tilde_class, (t_method)rvu_tilde_t_release, gensym("t_release"), A_FLOAT, 0);
class_addmethod(rvu_tilde_class, (t_method)rvu_tilde_t_metro, gensym("t_metro"), A_FLOAT, 0);
class_sethelpsymbol(rvu_tilde_class, gensym("iemhelp/help-rvu~"));
}
--- NEW FILE: pvu~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------------- pvu~ - simple peak-vu-meter. ----------------- */
typedef struct _pvu_tilde
{
t_object x_obj;
void *x_outlet_meter;
void *x_outlet_over;
void *x_clock;
t_float x_cur_peak;
t_float x_old_peak;
t_float x_threshold_over;
t_float x_c1;
t_float x_metro_time;
t_float x_release_time;
int x_overflow_counter;
int x_started;
t_float x_msi;
} t_pvu_tilde;
t_class *pvu_tilde_class;
static void pvu_tilde_tick(t_pvu_tilde *x);
static void pvu_tilde_reset(t_pvu_tilde *x)
{
outlet_float(x->x_outlet_over, 0.0f);
outlet_float(x->x_outlet_meter, -199.9f);
x->x_overflow_counter = 0;
x->x_cur_peak = 0.0f;
x->x_old_peak = 0.0f;
clock_delay(x->x_clock, x->x_metro_time);
}
static void pvu_tilde_stop(t_pvu_tilde *x)
{
clock_unset(x->x_clock);
x->x_started = 0;
}
static void pvu_tilde_start(t_pvu_tilde *x)
{
clock_delay(x->x_clock, x->x_metro_time);
x->x_started = 1;
}
static void pvu_tilde_float(t_pvu_tilde *x, t_floatarg f)
{
if(f == 0.0)
{
clock_unset(x->x_clock);
x->x_started = 0;
}
else
{
clock_delay(x->x_clock, x->x_metro_time);
x->x_started = 1;
}
}
static void pvu_tilde_t_release(t_pvu_tilde *x, t_floatarg release_time)
{
if(release_time <= 5.0f)
release_time = 5.0f;
x->x_release_time = release_time;
x->x_c1 = exp(-x->x_metro_time/release_time);
}
static void pvu_tilde_t_metro(t_pvu_tilde *x, t_floatarg metro_time)
{
if(metro_time <= 5.0f)
metro_time = 5.0f;
x->x_metro_time = (int)metro_time;
x->x_c1 = exp(-metro_time/x->x_release_time);
}
static void pvu_tilde_threshold(t_pvu_tilde *x, t_floatarg thresh)
{
x->x_threshold_over = thresh;
}
static t_int *pvu_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_pvu_tilde *x = (t_pvu_tilde *)(w[2]);
int n = (int)(w[3]);
t_float peak = x->x_cur_peak;
t_float absolute;
int i;
if(x->x_started)
{
for(i=0; i<n; i++)
{
absolute = fabs(*in++);
if(absolute > peak)
peak = absolute;
}
x->x_cur_peak = peak;
}
return(w+4);
}
static void pvu_tilde_dsp(t_pvu_tilde *x, t_signal **sp)
{
dsp_add(pvu_tilde_perform, 3, sp[0]->s_vec, x, sp[0]->s_n);
clock_delay(x->x_clock, x->x_metro_time);
}
static void pvu_tilde_tick(t_pvu_tilde *x)
{
t_float db;
int i;
x->x_old_peak *= x->x_c1;
/* NAN protect */
if(IEM_DENORMAL(x->x_old_peak))
x->x_old_peak = 0.0f;
if(x->x_cur_peak > x->x_old_peak)
x->x_old_peak = x->x_cur_peak;
if(x->x_old_peak <= 0.0000000001f)
db = -199.9f;
else if(x->x_old_peak > 1000000.0f)
{
db = 120.0f;
x->x_old_peak = 1000000.0f;
}
else
db = 8.6858896381f*log(x->x_old_peak);
if(db >= x->x_threshold_over)
{
x->x_overflow_counter++;
outlet_float(x->x_outlet_over, (t_float)x->x_overflow_counter);
}
outlet_float(x->x_outlet_meter, db);
x->x_cur_peak = 0.0f;
clock_delay(x->x_clock, x->x_metro_time);
}
static void *pvu_tilde_new(t_floatarg metro_time, t_floatarg release_time, t_floatarg threshold)
{
t_pvu_tilde *x;
t_float t;
x = (t_pvu_tilde *)pd_new(pvu_tilde_class);
if(metro_time <= 0.0f)
metro_time = 300.0f;
if(metro_time <= 5.0f)
metro_time = 5.0f;
if(release_time <= 0.0f)
release_time = 300.0f;
if(release_time <= 5.0f)
release_time = 5.0f;
if(threshold == 0.0f)
threshold = -0.01f;
x->x_threshold_over = threshold;
x->x_overflow_counter = 0;
x->x_metro_time = metro_time;
x->x_release_time = release_time;
x->x_c1 = exp(-metro_time/release_time);
x->x_cur_peak = 0.0f;
x->x_old_peak = 0.0f;
x->x_clock = clock_new(x, (t_method)pvu_tilde_tick);
x->x_outlet_meter = outlet_new(&x->x_obj, &s_float);/* left */
x->x_outlet_over = outlet_new(&x->x_obj, &s_float); /* right */
x->x_started = 1;
x->x_msi = 0;
return(x);
}
static void pvu_tilde_ff(t_pvu_tilde *x)
{
clock_free(x->x_clock);
}
void pvu_tilde_setup(void )
{
pvu_tilde_class = class_new(gensym("pvu~"), (t_newmethod)pvu_tilde_new,
(t_method)pvu_tilde_ff, sizeof(t_pvu_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(pvu_tilde_class, t_pvu_tilde, x_msi);
class_addmethod(pvu_tilde_class, (t_method)pvu_tilde_dsp, gensym("dsp"), 0);
class_addfloat(pvu_tilde_class, pvu_tilde_float);
class_addmethod(pvu_tilde_class, (t_method)pvu_tilde_reset, gensym("reset"), 0);
class_addmethod(pvu_tilde_class, (t_method)pvu_tilde_start, gensym("start"), 0);
class_addmethod(pvu_tilde_class, (t_method)pvu_tilde_stop, gensym("stop"), 0);
class_addmethod(pvu_tilde_class, (t_method)pvu_tilde_t_release, gensym("t_release"), A_FLOAT, 0);
class_addmethod(pvu_tilde_class, (t_method)pvu_tilde_t_metro, gensym("t_metro"), A_FLOAT, 0);
class_addmethod(pvu_tilde_class, (t_method)pvu_tilde_threshold, gensym("threshold"), A_FLOAT, 0);
class_sethelpsymbol(pvu_tilde_class, gensym("iemhelp/help-pvu~"));
}
--- NEW FILE: hml_shelf~.c ---
/* 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 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
/* ---------- hml_shelf~ - high-middle-low-shelving filter ----------- */
typedef struct _hml_shelf_tilde
{
t_object x_obj;
t_float wn1;
t_float wn2;
t_float a0;
t_float a1;
t_float a2;
t_float b1;
t_float b2;
t_float sr;
t_float cur_lf;
t_float cur_hf;
t_float cur_lg;
t_float cur_mg;
t_float cur_hg;
t_float delta_lf;
t_float delta_hf;
t_float delta_lg;
t_float delta_mg;
t_float delta_hg;
t_float end_lf;
t_float end_hf;
t_float end_lg;
t_float end_mg;
t_float end_hg;
t_float ticks_per_interpol_time;
t_float rcp_ticks;
t_float interpol_time;
int ticks;
int counter_lf;
int counter_hf;
int counter_lg;
int counter_mg;
int counter_hg;
int event_mask;
void *x_debug_outlet;
t_atom x_at[5];
t_float x_msi;
} t_hml_shelf_tilde;
t_class *hml_shelf_tilde_class;
static void hml_shelf_tilde_calc(t_hml_shelf_tilde *x)
{
t_float rf = x->cur_hf/x->cur_lf;
t_float mf = x->cur_hf*x->cur_lf;
t_float lg = x->cur_lg;
t_float rcplg = 1.0f/lg;
t_float mg = x->cur_mg;
t_float rcpmg = 1.0f/mg;
t_float hg = x->cur_hg;
t_float rcphg = 1.0f/hg;
t_float f = mf*x->sr;
t_float l = cos(f)/sin(f);
t_float k1 = rf*l;
t_float k2 = l/rf;
t_float k3 = l*l;
t_float k4 = k3*hg;
t_float k5 = k3*rcphg;
t_float k6 = rcplg + k5;
t_float k7 = rcpmg*k1 + k2*rcplg*rcphg*mg;
t_float k8 = lg + k4;
t_float k9 = mg*k1 + k2*lg*hg*rcpmg;
t_float k10 = 1.0f/(k6 + k7);
x->b2 = k10*(k7 - k6);
x->b1 = k10*2.0f*(k5 - rcplg);
x->a2 = k10*(k8 - k9);
x->a1 = k10*2.0f*(lg - k4);
x->a0 = k10*(k8 + k9);
}
/*
high- & low- shelving-filter:
L....sqrt(lowlevel);
rL...rsqrt(lowlevel);
M....sqrt(mediumlevel);
rM...rsqrt(mediumlevel);
H....sqrt(highlevel);
rH...rsqrt(highlevel);
V....sqrt(highfrequency/lowfrequency);
P....j*2*pi*f/(2*pi*V*lowfrequency);
Y/X = [M/(1/M)] * [(L/M + PV)/(M/L + PV)] * [(1 + HP/(VM))/(1 + MP/(VH))];
Y/X = (L + P*(M*V + L*H/(V*M)) + P*P*H) / (rL + P*(rM*V + rL*rH/(V*rM)) + P*P*rH);
hlshlv: lowlevel: ll; mediumlevel: lm; highlevel: hl; lowfrequency: fl; highfrequency: fh; samplerate: sr;
V = sqrt(fh/fl);
f = fl*V;
L = sqrt(ll);
rL = 1.0/L;
M = sqrt(lm);
rM = 1.0/M;
H = sqrt(lh);
rH = 1.0/H;
l = cot(f*3.14159265358979323846/sr);
k1 = V*l;
k2 = l/V;
l2 = l*l;
l3 = l2*H;
l4 = l2*rH;
m1 = k2*L*H*rM;
m2 = k2*rL*rH*M;
n1 = rL + l4;
n2 = rM*k1 + m2;
p1 = L + l3;
p2 = M*k1 + m1;
a012 = 1.0/(n1 + n2);
b2 = a012*(n2 - n1);
b1 = a012*2.0*(l4 - rL);
a2 = a012*(p1 - p2);
a1 = a012*2.0*(L - l3);
a0 = a012*(p1 + p2);
rf = sqrt(fh/fl);
mf = fl*rf;
L = sqrt(ll);
rL = 1.0/L;
M = sqrt(lm);
rM = 1.0/M;
H = sqrt(lh);
rH = 1.0/H;
l = cot(fm*3.14159265358979323846/sr);
k1 = V*l;
k2 = l/V;
k3 = l*l;
k4 = k3*H;
k5 = k3*rH;
k6 = rL + k5;
k7 = rM*k1 + k2*rL*rH*M;
k8 = L + k4;
k9 = M*k1 + k2*L*H*rM;
k10 = 1.0/(k6 + k7);
b2 = k10*(k7 - k6);
b1 = k10*2.0*(k5 - rL);
a2 = k10*(k8 - k9);
a1 = k10*2.0*(L - k4);
a0 = k10*(k8 + k9);
*/
static void hml_shelf_tilde_dsp_tick(t_hml_shelf_tilde *x)
{
if(x->event_mask)
{
t_float discriminant;
if(x->counter_lg)
{
if(x->counter_lg <= 1)
{
x->cur_lg = x->end_lg;
x->counter_lg = 0;
x->event_mask &= 30;/*set event_mask_bit 0 = 0*/
}
else
{
x->counter_lg--;
x->cur_lg *= x->delta_lg;
}
}
if(x->counter_lf)
{
if(x->counter_lf <= 1)
{
x->cur_lf = x->end_lf;
x->counter_lf = 0;
x->event_mask &= 29;/*set event_mask_bit 1 = 0*/
}
else
{
x->counter_lf--;
x->cur_lf *= x->delta_lf;
}
}
if(x->counter_mg)
{
if(x->counter_mg <= 1)
{
x->cur_mg = x->end_mg;
x->counter_mg = 0;
x->event_mask &= 27;/*set event_mask_bit 2 = 0*/
}
else
{
x->counter_mg--;
x->cur_mg *= x->delta_mg;
}
}
if(x->counter_hf)
{
if(x->counter_hf <= 1)
{
x->cur_hf = x->end_hf;
x->counter_hf = 0;
x->event_mask &= 23;/*set event_mask_bit 3 = 0*/
}
else
{
x->counter_hf--;
x->cur_hf *= x->delta_hf;
}
}
if(x->counter_hg)
{
if(x->counter_hg <= 1)
{
x->cur_hg = x->end_hg;
x->counter_hg = 0;
x->event_mask &= 15;/*set event_mask_bit 4 = 0*/
}
else
{
x->counter_hg--;
x->cur_hg *= x->delta_hg;
}
}
hml_shelf_tilde_calc(x);
/* stability check */
discriminant = x->b1 * x->b1 + 4.0f * x->b2;
if(x->b1 <= -1.9999996f)
x->b1 = -1.9999996f;
else if(x->b1 >= 1.9999996f)
x->b1 = 1.9999996f;
if(x->b2 <= -0.9999998f)
x->b2 = -0.9999998f;
else if(x->b2 >= 0.9999998f)
x->b2 = 0.9999998f;
if(discriminant >= 0.0f)
{
if(0.9999998f - x->b1 - x->b2 < 0.0f)
x->b2 = 0.9999998f - x->b1;
if(0.9999998f + x->b1 - x->b2 < 0.0f)
x->b2 = 0.9999998f + x->b1;
}
}
}
static t_int *hml_shelf_tilde_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_hml_shelf_tilde *x = (t_hml_shelf_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn0, wn1=x->wn1, wn2=x->wn2;
t_float a0=x->a0, a1=x->a1, a2=x->a2;
t_float b1=x->b1, b2=x->b2;
hml_shelf_tilde_dsp_tick(x);
for(i=0; i<n; i++)
{
wn0 = *in++ + b1*wn1 + b2*wn2;
*out++ = a0*wn0 + a1*wn1 + a2*wn2;
wn2 = wn1;
wn1 = wn0;
}
/* NAN protect */
if(IEM_DENORMAL(wn2))
wn2 = 0.0f;
if(IEM_DENORMAL(wn1))
wn1 = 0.0f;
x->wn1 = wn1;
x->wn2 = wn2;
return(w+5);
}
/* yn0 = *out;
xn0 = *in;
*************
yn0 = a0*xn0 + a1*xn1 + a2*xn2 + b1*yn1 + b2*yn2;
yn2 = yn1;
yn1 = yn0;
xn2 = xn1;
xn1 = xn0;
*************************
y/x = (a0 + a1*z-1 + a2*z-2)/(1 - b1*z-1 - b2*z-2);
*/
static t_int *hml_shelf_tilde_perf8(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_hml_shelf_tilde *x = (t_hml_shelf_tilde *)(w[3]);
int i, n = (t_int)(w[4]);
t_float wn[10];
t_float a0=x->a0, a1=x->a1, a2=x->a2;
t_float b1=x->b1, b2=x->b2;
hml_shelf_tilde_dsp_tick(x);
wn[0] = x->wn2;
wn[1] = x->wn1;
for(i=0; i<n; i+=8, in+=8, out+=8)
{
wn[2] = in[0] + b1*wn[1] + b2*wn[0];
out[0] = a0*wn[2] + a1*wn[1] + a2*wn[0];
wn[3] = in[1] + b1*wn[2] + b2*wn[1];
out[1] = a0*wn[3] + a1*wn[2] + a2*wn[1];
wn[4] = in[2] + b1*wn[3] + b2*wn[2];
out[2] = a0*wn[4] + a1*wn[3] + a2*wn[2];
wn[5] = in[3] + b1*wn[4] + b2*wn[3];
out[3] = a0*wn[5] + a1*wn[4] + a2*wn[3];
wn[6] = in[4] + b1*wn[5] + b2*wn[4];
out[4] = a0*wn[6] + a1*wn[5] + a2*wn[4];
wn[7] = in[5] + b1*wn[6] + b2*wn[5];
out[5] = a0*wn[7] + a1*wn[6] + a2*wn[5];
wn[8] = in[6] + b1*wn[7] + b2*wn[6];
out[6] = a0*wn[8] + a1*wn[7] + a2*wn[6];
wn[9] = in[7] + b1*wn[8] + b2*wn[7];
out[7] = a0*wn[9] + a1*wn[8] + a2*wn[7];
wn[0] = wn[8];
wn[1] = wn[9];
}
/* NAN protect */
if(IEM_DENORMAL(wn[0]))
wn[0] = 0.0f;
if(IEM_DENORMAL(wn[1]))
wn[1] = 0.0f;
x->wn1 = wn[1];
x->wn2 = wn[0];
return(w+5);
}
static void hml_shelf_tilde_ft6(t_hml_shelf_tilde *x, t_floatarg t)
{
int i = (int)((x->ticks_per_interpol_time)*t);
x->interpol_time = t;
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
}
static void hml_shelf_tilde_ft5(t_hml_shelf_tilde *x, t_floatarg hl)
{
t_float hg = exp(0.057564627325 * hl);
if(hg != x->cur_hg)
{
x->end_hg = hg;
x->counter_hg = x->ticks;
x->delta_hg = exp(log(hg/x->cur_hg)*x->rcp_ticks);
x->event_mask |= 16;/*set event_mask_bit 4 = 1*/
}
}
static void hml_shelf_tilde_ft4(t_hml_shelf_tilde *x, t_floatarg hf)
{
t_float sqhf;
if(hf <= 0.0f)
hf = 0.000001f;
sqhf = sqrt(hf);
if(sqhf != x->cur_hf)
{
x->end_hf = sqhf;
x->counter_hf = x->ticks;
x->delta_hf = exp(log(sqhf/x->cur_hf)*x->rcp_ticks);
x->event_mask |= 8;/*set event_mask_bit 3 = 1*/
}
}
static void hml_shelf_tilde_ft3(t_hml_shelf_tilde *x, t_floatarg ml)
{
t_float mg = exp(0.057564627325 * ml);
if(mg != x->cur_mg)
{
x->end_mg = mg;
x->counter_mg = x->ticks;
x->delta_mg = exp(log(mg/x->cur_mg)*x->rcp_ticks);
x->event_mask |= 4;/*set event_mask_bit 2 = 1*/
}
}
static void hml_shelf_tilde_ft2(t_hml_shelf_tilde *x, t_floatarg lf)
{
t_float sqlf;
if(lf <= 0.0f)
lf = 0.000001f;
sqlf = sqrt(lf);
if(sqlf != x->cur_lf)
{
x->end_lf = sqlf;
x->counter_lf = x->ticks;
x->delta_lf = exp(log(sqlf/x->cur_lf)*x->rcp_ticks);
x->event_mask |= 2;/*set event_mask_bit 1 = 1*/
}
}
static void hml_shelf_tilde_ft1(t_hml_shelf_tilde *x, t_floatarg ll)
{
t_float lg = exp(0.057564627325 * ll);
if(lg != x->cur_lg)
{
x->end_lg = lg;
x->counter_lg = x->ticks;
x->delta_lg = exp(log(lg/x->cur_lg)*x->rcp_ticks);
x->event_mask |= 1;/*set event_mask_bit 0 = 1*/
}
}
static void hml_shelf_tilde_print(t_hml_shelf_tilde *x)
{
// post("fb1 = %g, fb2 = %g, ff1 = %g, ff2 = %g, ff3 = %g", x->b1, x->b2, x->a0, x->a1, x->a2);
x->x_at[0].a_w.w_float = x->b1;
x->x_at[1].a_w.w_float = x->b2;
x->x_at[2].a_w.w_float = x->a0;
x->x_at[3].a_w.w_float = x->a1;
x->x_at[4].a_w.w_float = x->a2;
outlet_list(x->x_debug_outlet, &s_list, 5, x->x_at);
}
static void hml_shelf_tilde_dsp(t_hml_shelf_tilde *x, t_signal **sp)
{
int i, n=(int)sp[0]->s_n;
x->sr = 3.14159265358979323846f / (t_float)(sp[0]->s_sr);
x->ticks_per_interpol_time = 0.001f * (t_float)(sp[0]->s_sr) / (t_float)n;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
if(n&7)
dsp_add(hml_shelf_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
else
dsp_add(hml_shelf_tilde_perf8, 4, sp[0]->s_vec, sp[1]->s_vec, x, n);
}
static void *hml_shelf_tilde_new(t_symbol *s, int argc, t_atom *argv)
{
t_hml_shelf_tilde *x = (t_hml_shelf_tilde *)pd_new(hml_shelf_tilde_class);
int i;
t_float lf=200.0f, hf=2000.0f, ll=0.0f, ml=0.0f, hl=0.0f, interpol=0.0f;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft3"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft4"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft5"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft6"));
outlet_new(&x->x_obj, &s_signal);
x->x_debug_outlet = outlet_new(&x->x_obj, &s_list);
x->x_msi = 0;
x->x_at[0].a_type = A_FLOAT;
x->x_at[1].a_type = A_FLOAT;
x->x_at[2].a_type = A_FLOAT;
x->x_at[3].a_type = A_FLOAT;
x->x_at[4].a_type = A_FLOAT;
x->event_mask = 2;
x->counter_lg = 0;
x->counter_lf = 1;
x->counter_mg = 0;
x->counter_hf = 0;
x->counter_hg = 0;
x->delta_lg = 0.0f;
x->delta_lf = 0.0f;
x->delta_mg = 0.0f;
x->delta_hf = 0.0f;
x->delta_hg = 0.0f;
x->interpol_time = 0.0f;
x->wn1 = 0.0f;
x->wn2 = 0.0f;
x->a0 = 0.0f;
x->a1 = 0.0f;
x->a2 = 0.0f;
x->b1 = 0.0f;
x->b2 = 0.0f;
x->sr = 3.14159265358979323846f / 44100.0f;
if((argc == 6)&&IS_A_FLOAT(argv,5)&&IS_A_FLOAT(argv,4)&&IS_A_FLOAT(argv,3)
&&IS_A_FLOAT(argv,2)&&IS_A_FLOAT(argv,1)&&IS_A_FLOAT(argv,0))
{
ll = (t_float)atom_getfloatarg(0, argc, argv);
lf = (t_float)atom_getfloatarg(1, argc, argv);
ml = (t_float)atom_getfloatarg(2, argc, argv);
hf = (t_float)atom_getfloatarg(3, argc, argv);
hl = (t_float)atom_getfloatarg(4, argc, argv);
interpol = (t_float)atom_getfloatarg(5, argc, argv);
}
x->cur_lg = exp(0.057564627325 * ll);
x->cur_mg = exp(0.057564627325 * ml);
x->cur_hg = exp(0.057564627325 * hl);
if(lf <= 0.0f)
lf = 0.000001f;
if(hf <= 0.0f)
hf = 0.000001f;
x->cur_lf = sqrt(lf);
x->cur_hf = sqrt(hf);
if(interpol < 0.0f)
interpol = 0.0f;
x->interpol_time = interpol;
x->ticks_per_interpol_time = 0.5f;
i = (int)((x->ticks_per_interpol_time)*(x->interpol_time));
if(i <= 0)
i = 1;
x->ticks = i;
x->rcp_ticks = 1.0f / (t_float)i;
x->end_lf = x->cur_lf;
x->end_hf = x->cur_hf;
x->end_lg = x->cur_lg;
x->end_mg = x->cur_mg;
x->end_hg = x->cur_hg;
return(x);
}
void hml_shelf_tilde_setup(void)
{
hml_shelf_tilde_class = class_new(gensym("hml_shelf~"), (t_newmethod)hml_shelf_tilde_new,
0, sizeof(t_hml_shelf_tilde), 0, A_GIMME, 0);
CLASS_MAINSIGNALIN(hml_shelf_tilde_class, t_hml_shelf_tilde, x_msi);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_dsp, gensym("dsp"), 0);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_ft2, gensym("ft2"), A_FLOAT, 0);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_ft3, gensym("ft3"), A_FLOAT, 0);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_ft4, gensym("ft4"), A_FLOAT, 0);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_ft5, gensym("ft5"), A_FLOAT, 0);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_ft6, gensym("ft6"), A_FLOAT, 0);
class_addmethod(hml_shelf_tilde_class, (t_method)hml_shelf_tilde_print, gensym("print"), 0);
class_sethelpsymbol(hml_shelf_tilde_class, gensym("iemhelp/help-hml_shelf~"));
}
Index: v2db.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/v2db.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** v2db.c 11 Apr 2006 16:24:09 -0000 1.4
--- v2db.c 8 Nov 2006 13:24:10 -0000 1.5
***************
*** 4,18 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
! #include <stdio.h>
! #include <string.h>
/* -------- v2db - a rms-value to techn. dB converter. --------- */
--- 4,12 ----
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
!
/* -------- v2db - a rms-value to techn. dB converter. --------- */
***************
*** 20,24 ****
static t_class *v2db_class;
! float v2db(float f)
{
return (f <= 0 ? -199.9 : 8.6858896381*log(f));
--- 14,18 ----
static t_class *v2db_class;
! t_float v2db(t_float f)
{
return (f <= 0 ? -199.9 : 8.6858896381*log(f));
Index: f2note.c
===================================================================
RCS file: /cvsroot/pure-data/externals/iemlib/src/iemlib1/f2note.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** f2note.c 11 Apr 2006 16:24:09 -0000 1.4
--- f2note.c 8 Nov 2006 13:24:09 -0000 1.5
***************
*** 4,18 ****
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
- #ifdef _MSC_VER
- #pragma warning( disable : 4244 )
- #pragma warning( disable : 4305 )
- #endif
-
#include "m_pd.h"
#include "iemlib.h"
#include <math.h>
- #include <stdio.h>
- #include <string.h>
/* ------------------------- f2note ---------------------- */
--- 4,11 ----
***************
*** 26,32 ****
void *x_outlet_cent;
int x_centomidi;
! float x_refhz;
! float x_refexp;
! float x_reflog;
t_symbol *x_set;
} t_f2note;
--- 19,25 ----
void *x_outlet_cent;
int x_centomidi;
! t_float x_refhz;
! t_float x_refexp;
! t_float x_reflog;
t_symbol *x_set;
} t_f2note;
***************
*** 34,43 ****
static t_class *f2note_class;
! float f2note_mtof(t_f2note *x, float midi)
{
return(x->x_refexp * exp(0.057762265047 * midi));
}
! float f2note_ftom(t_f2note *x, float freq)
{
return (freq > 0 ? 17.31234049 * log(x->x_reflog * freq) : -1500);
--- 27,36 ----
static t_class *f2note_class;
! t_float f2note_mtof(t_f2note *x, t_float midi)
{
return(x->x_refexp * exp(0.057762265047 * midi));
}
! t_float f2note_ftom(t_f2note *x, t_float freq)
{
return (freq > 0 ? 17.31234049 * log(x->x_reflog * freq) : -1500);
***************
*** 46,50 ****
void f2note_calc_ref(t_f2note *x)
{
! float ln2=log(2.0);
x->x_refexp = x->x_refhz*exp(-5.75*ln2);
--- 39,43 ----
void f2note_calc_ref(t_f2note *x)
{
! t_float ln2=log(2.0);
x->x_refexp = x->x_refhz*exp(-5.75*ln2);
***************
*** 141,154 ****
i = (x->x_centomidi + 50)/100;
j = x->x_centomidi - 100*i;
! outlet_float(x->x_outlet_cent, (float)j);
f2note_make_note(s, i);
SETSYMBOL(&at, gensym(s));
outlet_anything(x->x_outlet_note, x->x_set, 1, &at);
! outlet_float(x->x_outlet_midi, 0.01*(float)(x->x_centomidi));
}
static void f2note_float(t_f2note *x, t_floatarg freq)
{
! x->x_centomidi = (int)(100.0*f2note_ftom(x, freq) + 0.5);
f2note_bang(x);
}
--- 134,147 ----
i = (x->x_centomidi + 50)/100;
j = x->x_centomidi - 100*i;
! outlet_float(x->x_outlet_cent, (t_float)j);
f2note_make_note(s, i);
SETSYMBOL(&at, gensym(s));
outlet_anything(x->x_outlet_note, x->x_set, 1, &at);
! outlet_float(x->x_outlet_midi, 0.01f*(t_float)(x->x_centomidi));
}
static void f2note_float(t_f2note *x, t_floatarg freq)
{
! x->x_centomidi = (int)(100.0f*f2note_ftom(x, freq) + 0.5f);
f2note_bang(x);
}
***************
*** 164,171 ****
t_f2note *x = (t_f2note *)pd_new(f2note_class);
! if(ref == 0.0)
! ref=440.0;
x->x_refhz = ref;
! x->x_centomidi = (int)(100.0*ref + 0.499);
f2note_calc_ref(x);
x->x_outlet_midi = outlet_new(&x->x_obj, &s_float);
--- 157,164 ----
t_f2note *x = (t_f2note *)pd_new(f2note_class);
! if(ref == 0.0f)
! ref=440.0f;
x->x_refhz = ref;
! x->x_centomidi = (int)(100.0f*ref + 0.499f);
f2note_calc_ref(x);
x->x_outlet_midi = outlet_new(&x->x_obj, &s_float);
