aboutsummaryrefslogtreecommitdiff
path: root/src/iemlib1
diff options
context:
space:
mode:
Diffstat (limited to 'src/iemlib1')
-rw-r--r--src/iemlib1/FIR~.c169
-rw-r--r--src/iemlib1/biquad_freq_resp.c23
-rw-r--r--src/iemlib1/db2v.c11
-rw-r--r--src/iemlib1/f2note.c31
-rw-r--r--src/iemlib1/filter~.c813
-rw-r--r--src/iemlib1/forpp.c16
-rw-r--r--src/iemlib1/gate.c15
-rw-r--r--src/iemlib1/hml_shelf~.c548
-rw-r--r--src/iemlib1/iem_cot4~.c168
-rw-r--r--src/iemlib1/iem_delay~.c201
-rw-r--r--src/iemlib1/iem_pow4~.c78
-rw-r--r--src/iemlib1/iem_sqrt4~.c108
-rw-r--r--src/iemlib1/iemlib1.c69
-rw-r--r--src/iemlib1/lp1_t~.c210
-rw-r--r--src/iemlib1/makefile_linux69
-rw-r--r--src/iemlib1/makefile_win32
-rw-r--r--src/iemlib1/mov_avrg_kern~.c135
-rw-r--r--src/iemlib1/para_bp2~.c418
-rw-r--r--src/iemlib1/peakenv~.c95
-rw-r--r--src/iemlib1/prvu~.c274
-rw-r--r--src/iemlib1/pvu~.c198
-rw-r--r--src/iemlib1/rvu~.c178
-rw-r--r--src/iemlib1/sin_phase~.c121
-rw-r--r--src/iemlib1/soundfile_info.c15
-rw-r--r--src/iemlib1/split.c9
-rw-r--r--src/iemlib1/v2db.c10
-rw-r--r--src/iemlib1/vcf_filter~.c326
27 files changed, 4195 insertions, 145 deletions
diff --git a/src/iemlib1/FIR~.c b/src/iemlib1/FIR~.c
new file mode 100644
index 0000000..087190b
--- /dev/null
+++ b/src/iemlib1/FIR~.c
@@ -0,0 +1,169 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/biquad_freq_resp.c b/src/iemlib1/biquad_freq_resp.c
index f0c949c..bc1e99d 100644
--- a/src/iemlib1/biquad_freq_resp.c
+++ b/src/iemlib1/biquad_freq_resp.c
@@ -3,17 +3,10 @@
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 ------------------- */
/* -- calculates the frequency responce of a biquad structure -- */
@@ -21,21 +14,21 @@ iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005
typedef struct _biquad_freq_resp
{
t_object x_obj;
- float a0;
- float a1;
- float a2;
- float b1;
- float b2;
+ 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;
} t_biquad_freq_resp;
static t_class *biquad_freq_resp_class;
-static void biquad_freq_resp_float(t_biquad_freq_resp *x, t_float f)
+static void biquad_freq_resp_float(t_biquad_freq_resp *x, t_floatarg f)
{
- float re1, im1, re2, im2;
- float c, s, a;
+ t_float re1, im1, re2, im2;
+ t_float c, s, a;
if(f < 0.0f)
f = 0.0f;
diff --git a/src/iemlib1/db2v.c b/src/iemlib1/db2v.c
index e8b1db4..a2b075e 100644
--- a/src/iemlib1/db2v.c
+++ b/src/iemlib1/db2v.c
@@ -3,28 +3,21 @@
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. --------- */
static t_class *db2v_class;
-float db2v(float f)
+t_float db2v(t_float f)
{
return (f <= -199.9 ? 0 : exp(0.11512925465 * f));
}
-static void db2v_float(t_object *x, t_float f)
+static void db2v_float(t_object *x, t_floatarg f)
{
outlet_float(x->ob_outlet, db2v(f));
}
diff --git a/src/iemlib1/f2note.c b/src/iemlib1/f2note.c
index 196fa6c..3625427 100644
--- a/src/iemlib1/f2note.c
+++ b/src/iemlib1/f2note.c
@@ -3,17 +3,10 @@
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 ---------------------- */
/* ------ frequency to note plus cents converter --------- */
@@ -25,27 +18,27 @@ typedef struct _f2note
void *x_outlet_note;
void *x_outlet_cent;
int x_centomidi;
- float x_refhz;
- float x_refexp;
- float x_reflog;
+ t_float x_refhz;
+ t_float x_refexp;
+ t_float x_reflog;
t_symbol *x_set;
} t_f2note;
static t_class *f2note_class;
-float f2note_mtof(t_f2note *x, float midi)
+t_float f2note_mtof(t_f2note *x, t_float midi)
{
return(x->x_refexp * exp(0.057762265047 * midi));
}
-float f2note_ftom(t_f2note *x, float freq)
+t_float f2note_ftom(t_f2note *x, t_float freq)
{
return (freq > 0 ? 17.31234049 * log(x->x_reflog * freq) : -1500);
}
void f2note_calc_ref(t_f2note *x)
{
- float ln2=log(2.0);
+ t_float ln2=log(2.0);
x->x_refexp = x->x_refhz*exp(-5.75*ln2);
x->x_reflog = 1.0/x->x_refexp;
@@ -140,16 +133,16 @@ static void f2note_bang(t_f2note *x)
i = (x->x_centomidi + 50)/100;
j = x->x_centomidi - 100*i;
- outlet_float(x->x_outlet_cent, (float)j);
+ 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, 0.01*(float)(x->x_centomidi));
+ 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)(100.0*f2note_ftom(x, freq) + 0.5);
+ x->x_centomidi = (int)(100.0f*f2note_ftom(x, freq) + 0.5f);
f2note_bang(x);
}
@@ -163,10 +156,10 @@ static void *f2note_new(t_floatarg ref)
{
t_f2note *x = (t_f2note *)pd_new(f2note_class);
- if(ref == 0.0)
- ref=440.0;
+ if(ref == 0.0f)
+ ref=440.0f;
x->x_refhz = ref;
- x->x_centomidi = (int)(100.0*ref + 0.499);
+ x->x_centomidi = (int)(100.0f*ref + 0.499f);
f2note_calc_ref(x);
x->x_outlet_midi = outlet_new(&x->x_obj, &s_float);
x->x_outlet_note = outlet_new(&x->x_obj, &s_list);
diff --git a/src/iemlib1/filter~.c b/src/iemlib1/filter~.c
new file mode 100644
index 0000000..f229d65
--- /dev/null
+++ b/src/iemlib1/filter~.c
@@ -0,0 +1,813 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/forpp.c b/src/iemlib1/forpp.c
index b1ddc9a..bbee77a 100644
--- a/src/iemlib1/forpp.c
+++ b/src/iemlib1/forpp.c
@@ -3,17 +3,9 @@
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++ -------------------------------- */
/* -- an internal timed counter (start-, stop-number and metro-time) -- */
@@ -23,7 +15,7 @@ typedef struct _forpp
t_object x_obj;
int x_beg;
int x_end;
- float x_delay;
+ t_float x_delay;
int x_cur;
int x_incr;
void *x_out_end;
@@ -108,7 +100,7 @@ static void forpp_stop(t_forpp *x)
clock_unset(x->x_clock2);
}
-static void forpp_float(t_forpp *x, t_float beg)
+static void forpp_float(t_forpp *x, t_floatarg beg)
{
x->x_beg = (int)beg;
if(x->x_end < x->x_beg)
@@ -117,7 +109,7 @@ static void forpp_float(t_forpp *x, t_float beg)
x->x_incr = 1;
}
-static void forpp_ft1(t_forpp *x, t_float end)
+static void forpp_ft1(t_forpp *x, t_floatarg end)
{
x->x_end = (int)end;
if(x->x_end < x->x_beg)
@@ -126,7 +118,7 @@ static void forpp_ft1(t_forpp *x, t_float end)
x->x_incr = 1;
}
-static void forpp_ft2(t_forpp *x, t_float delay)
+static void forpp_ft2(t_forpp *x, t_floatarg delay)
{
if(delay < 0.0)
delay = 0.0;
diff --git a/src/iemlib1/gate.c b/src/iemlib1/gate.c
index f0f85be..c893e3e 100644
--- a/src/iemlib1/gate.c
+++ b/src/iemlib1/gate.c
@@ -1,19 +1,12 @@
/* 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 - 2004 */
-
-#ifdef _MSC_VER
-#pragma warning( disable : 4244 )
-#pragma warning( disable : 4305 )
-#endif
+iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
-#include <math.h>
-#include <stdio.h>
-#include <string.h>
+
/* --------- gate ---------------------- */
/* ----------- like spigot ------------ */
@@ -21,7 +14,7 @@ iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2004
typedef struct _gate
{
t_object x_obj;
- float x_state;
+ t_float x_state;
} t_gate;
static t_class *gate_class;
@@ -67,7 +60,7 @@ static void *gate_new(t_floatarg f)
t_gate *x = (t_gate *)pd_new(gate_class);
floatinlet_new(&x->x_obj, &x->x_state);
outlet_new(&x->x_obj, 0);
- x->x_state = (f==0.0)?0:1;
+ x->x_state = (f==0.0f)?0.0f:1.0f;
return (x);
}
diff --git a/src/iemlib1/hml_shelf~.c b/src/iemlib1/hml_shelf~.c
new file mode 100644
index 0000000..5072911
--- /dev/null
+++ b/src/iemlib1/hml_shelf~.c
@@ -0,0 +1,548 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/iem_cot4~.c b/src/iemlib1/iem_cot4~.c
new file mode 100644
index 0000000..52b48f7
--- /dev/null
+++ b/src/iemlib1/iem_cot4~.c
@@ -0,0 +1,168 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/iem_delay~.c b/src/iemlib1/iem_delay~.c
new file mode 100644
index 0000000..2a2e49d
--- /dev/null
+++ b/src/iemlib1/iem_delay~.c
@@ -0,0 +1,201 @@
+/* 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);
+}
diff --git a/src/iemlib1/iem_pow4~.c b/src/iemlib1/iem_pow4~.c
new file mode 100644
index 0000000..50bc7c2
--- /dev/null
+++ b/src/iemlib1/iem_pow4~.c
@@ -0,0 +1,78 @@
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 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~"));
+}
diff --git a/src/iemlib1/iem_sqrt4~.c b/src/iemlib1/iem_sqrt4~.c
new file mode 100644
index 0000000..d156122
--- /dev/null
+++ b/src/iemlib1/iem_sqrt4~.c
@@ -0,0 +1,108 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/iemlib1.c b/src/iemlib1/iemlib1.c
index c2b4efb..517d0ea 100644
--- a/src/iemlib1/iemlib1.c
+++ b/src/iemlib1/iemlib1.c
@@ -3,11 +3,6 @@
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"
@@ -24,27 +19,27 @@ static void *iemlib1_new(void)
void biquad_freq_resp_setup(void);
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 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 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 ------------------------- */
@@ -56,27 +51,27 @@ void iemlib1_setup(void)
biquad_freq_resp_setup();
db2v_setup();
f2note_setup();
+ filter_tilde_setup();
+ FIR_tilde_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();
+ 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");
post(" musil%ciem.at iem KUG Graz Austria", '@');
diff --git a/src/iemlib1/lp1_t~.c b/src/iemlib1/lp1_t~.c
new file mode 100644
index 0000000..b7d7685
--- /dev/null
+++ b/src/iemlib1/lp1_t~.c
@@ -0,0 +1,210 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/makefile_linux b/src/iemlib1/makefile_linux
new file mode 100644
index 0000000..5d7ecfc
--- /dev/null
+++ b/src/iemlib1/makefile_linux
@@ -0,0 +1,69 @@
+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
+
+
+
+
diff --git a/src/iemlib1/makefile_win b/src/iemlib1/makefile_win
index 2997352..cd4322d 100644
--- a/src/iemlib1/makefile_win
+++ b/src/iemlib1/makefile_win
@@ -18,27 +18,27 @@ PD_WIN_LIB = /NODEFAULTLIB:libc /NODEFAULTLIB:oldnames /NODEFAULTLIB:kernel /NOD
SRC = biquad_freq_resp.c \
db2v.c \
f2note.c \
+ filter~.c \
+ FIR~.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 \
+ 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
diff --git a/src/iemlib1/mov_avrg_kern~.c b/src/iemlib1/mov_avrg_kern~.c
new file mode 100644
index 0000000..0d1147e
--- /dev/null
+++ b/src/iemlib1/mov_avrg_kern~.c
@@ -0,0 +1,135 @@
+/* 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);
+}
diff --git a/src/iemlib1/para_bp2~.c b/src/iemlib1/para_bp2~.c
new file mode 100644
index 0000000..0cf7771
--- /dev/null
+++ b/src/iemlib1/para_bp2~.c
@@ -0,0 +1,418 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/peakenv~.c b/src/iemlib1/peakenv~.c
new file mode 100644
index 0000000..d5d212b
--- /dev/null
+++ b/src/iemlib1/peakenv~.c
@@ -0,0 +1,95 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/prvu~.c b/src/iemlib1/prvu~.c
new file mode 100644
index 0000000..17fe143
--- /dev/null
+++ b/src/iemlib1/prvu~.c
@@ -0,0 +1,274 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/pvu~.c b/src/iemlib1/pvu~.c
new file mode 100644
index 0000000..66e9437
--- /dev/null
+++ b/src/iemlib1/pvu~.c
@@ -0,0 +1,198 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/rvu~.c b/src/iemlib1/rvu~.c
new file mode 100644
index 0000000..95a874a
--- /dev/null
+++ b/src/iemlib1/rvu~.c
@@ -0,0 +1,178 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/sin_phase~.c b/src/iemlib1/sin_phase~.c
new file mode 100644
index 0000000..baf34f4
--- /dev/null
+++ b/src/iemlib1/sin_phase~.c
@@ -0,0 +1,121 @@
+/* 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~"));
+}
diff --git a/src/iemlib1/soundfile_info.c b/src/iemlib1/soundfile_info.c
index 662216c..1eb4ded 100644
--- a/src/iemlib1/soundfile_info.c
+++ b/src/iemlib1/soundfile_info.c
@@ -3,11 +3,6 @@
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 <stdlib.h>
@@ -162,7 +157,7 @@ soundfile_info_fmt:
post("soundfile_info_read-error: %s has no common channel-number", completefilename);
goto soundfile_info_end;
}
- SETFLOAT(x->x_atheader+SFI_HEADER_CHANNELS, (float)ss);
+ SETFLOAT(x->x_atheader+SFI_HEADER_CHANNELS, (t_float)ss);
ch = ss;
header_size += 2;
cvec += 2;
@@ -173,7 +168,7 @@ soundfile_info_fmt:
post("soundfile_info_read-error: %s has no common samplerate", completefilename);
goto soundfile_info_end;
}
- SETFLOAT(x->x_atheader+SFI_HEADER_SAMPLERATE, (float)ll);
+ SETFLOAT(x->x_atheader+SFI_HEADER_SAMPLERATE, (t_float)ll);
sr = ll;
header_size += 4;
cvec += 4;
@@ -188,7 +183,7 @@ soundfile_info_fmt:
post("soundfile_info_read-error: %s has no common number of bytes per sample", completefilename);
goto soundfile_info_end;
}
- SETFLOAT(x->x_atheader+SFI_HEADER_BYTES_PER_SAMPLE, (float)(ss/ch));
+ SETFLOAT(x->x_atheader+SFI_HEADER_BYTES_PER_SAMPLE, (t_float)(ss/ch));
bps = ss;
header_size += 2;
cvec += 2;
@@ -210,11 +205,11 @@ soundfile_info_data:
header_size += 8;
cvec += 8;
- SETFLOAT(x->x_atheader+SFI_HEADER_HEADERBYTES, (float)header_size);
+ 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, (float)filesize);
+ 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));
diff --git a/src/iemlib1/split.c b/src/iemlib1/split.c
index b95f93c..cfe7de8 100644
--- a/src/iemlib1/split.c
+++ b/src/iemlib1/split.c
@@ -3,17 +3,10 @@
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 ----------- */
diff --git a/src/iemlib1/v2db.c b/src/iemlib1/v2db.c
index e0781ea..d11682d 100644
--- a/src/iemlib1/v2db.c
+++ b/src/iemlib1/v2db.c
@@ -3,23 +3,17 @@
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. --------- */
static t_class *v2db_class;
-float v2db(float f)
+t_float v2db(t_float f)
{
return (f <= 0 ? -199.9 : 8.6858896381*log(f));
}
diff --git a/src/iemlib1/vcf_filter~.c b/src/iemlib1/vcf_filter~.c
new file mode 100644
index 0000000..9aeb2a0
--- /dev/null
+++ b/src/iemlib1/vcf_filter~.c
@@ -0,0 +1,326 @@
+/* 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~"));
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-26 21:56:52 +0000