split out d_math.c into standalone objects

svn path=/trunk/; revision=12736

22 files changed, 844 insertions, 2 deletions

diff --git a/externals/vanilla/Makefile b/externals/vanilla/Makefile
index c5b6b7bb..d77acb9d 100644
--- a/externals/vanilla/Makefile
+++ b/externals/vanilla/Makefile
@@ -4,7 +4,7 @@
 LIBRARY_NAME = vanilla
 
 # Next, add your source files to the SOURCES variable.
-SOURCES = abs~.c bng.c cnv.c exp~.c hradio.c hsl.c log~.c nbx.c pow~.c print.c tgl.c vradio.c vslider.c vu.c
+SOURCES = abs~.c bng.c clip~.c cnv.c dbtopow~.c dbtorms~.c exp~.c ftom~.c hradio.c hsl.c log~.c mtof~.c nbx.c powtodb~.c pow~.c print.c rmstodb~.c rsqrt~.c sqrt~.c tgl.c vradio.c vslider.c vu.c wrap~.c
 
 
 # For objects that only build on certain platforms, add those to the SOURCES
@@ -50,7 +50,7 @@ ifeq ($(UNAME),Darwin)
     SOURCES += $(SOURCES_Darwin)
     EXTENSION = pd_darwin
     OS = macosx
-    OPT_CFLAGS = -ftree-vectorize -ftree-vectorizer-verbose=2 -fast
+    OPT_CFLAGS = -fast
     FAT_FLAGS = -arch i386 -arch ppc -mmacosx-version-min=10.4
     CFLAGS += $(FAT_FLAGS) -fPIC -I/sw/include
     LDFLAGS += $(FAT_FLAGS) -bundle -undefined dynamic_lookup -L/sw/lib
diff --git a/externals/vanilla/TODO b/externals/vanilla/TODO
new file mode 100644
index 00000000..ecbeff25
--- /dev/null
+++ b/externals/vanilla/TODO
@@ -0,0 +1,12 @@
+
+- figure out how Pd-extended is going to load this stuff in order to maintain
+  maximum capatibility
+
+- replace pd-extended's d_math.c with this d_math.c
+
+- move this d_math.h to pd-extended's pd/src
+
+- move relevant help patches from pd-extended's pd/doc/5.reference to here
+
+- move relevent help patches from doc/pddp to here
+
diff --git a/externals/vanilla/abs~.c b/externals/vanilla/abs~.c
new file mode 100644
index 00000000..b64fae45
--- /dev/null
+++ b/externals/vanilla/abs~.c
@@ -0,0 +1,48 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include <math.h>
+
+static t_class *abs_tilde_class;
+
+typedef struct _abs_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_abs_tilde;
+
+static void *abs_tilde_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_abs_tilde *x = (t_abs_tilde *)pd_new(abs_tilde_class);
+    outlet_new(&x->x_obj, &s_signal);
+    return (x);
+}
+
+t_int *abs_tilde_perform(t_int *w)
+{
+    t_sample *in1 = (t_sample *)(w[1]);
+    t_sample *out = (t_sample *)(w[2]);
+    int n = (int)(w[3]);
+    while (n--)
+    {
+        float f = *in1++;
+        *out++ = (f >= 0 ? f : -f);
+    }
+    return (w+4);
+}
+
+static void abs_tilde_dsp(t_abs_tilde *x, t_signal **sp)
+{
+    dsp_add(abs_tilde_perform, 3,
+        sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+static void abs_tilde_setup(void)
+{
+    abs_tilde_class = class_new(gensym("abs~"), (t_newmethod)abs_tilde_new, 0,
+        sizeof(t_abs_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(abs_tilde_class, t_abs_tilde, x_f);
+    class_addmethod(abs_tilde_class, (t_method)abs_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/clip~.c b/externals/vanilla/clip~.c
new file mode 100644
index 00000000..e53ad31a
--- /dev/null
+++ b/externals/vanilla/clip~.c
@@ -0,0 +1,57 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include <math.h>
+
+static t_class *clip_class;
+
+typedef struct _clip
+{
+    t_object x_obj;
+    t_float x_f;
+    t_float x_lo;
+    t_float x_hi;
+} t_clip;
+
+static void *clip_new(t_floatarg lo, t_floatarg hi)
+{
+    t_clip *x = (t_clip *)pd_new(clip_class);
+    x->x_lo = lo;
+    x->x_hi = hi;
+    outlet_new(&x->x_obj, gensym("signal"));
+    floatinlet_new(&x->x_obj, &x->x_lo);
+    floatinlet_new(&x->x_obj, &x->x_hi);
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *clip_perform(t_int *w)
+{
+    t_clip *x = (t_clip *)(w[1]);
+    t_sample *in = (t_sample *)(w[2]);
+    t_sample *out = (t_sample *)(w[3]);
+    int n = (int)(w[4]);
+    while (n--)
+    {
+        t_sample f = *in++;
+        if (f < x->x_lo) f = x->x_lo;
+        if (f > x->x_hi) f = x->x_hi;
+        *out++ = f;
+    }
+    return (w+5);
+}
+
+static void clip_dsp(t_clip *x, t_signal **sp)
+{
+    dsp_add(clip_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+static void clip_tilde_setup(void)
+{
+    clip_class = class_new(gensym("clip~"), (t_newmethod)clip_new, 0,
+        sizeof(t_clip), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
+    CLASS_MAINSIGNALIN(clip_class, t_clip, x_f);
+    class_addmethod(clip_class, (t_method)clip_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/d_math.c b/externals/vanilla/d_math.c
new file mode 100644
index 00000000..10f27cfe
--- /dev/null
+++ b/externals/vanilla/d_math.c
@@ -0,0 +1,34 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+/*  mathematical functions and other transfer functions, including tilde
+    versions of stuff from x_acoustics.c.
+*/
+
+#include "d_math.h"
+
+    /* these are used in externs like "bonk" */
+
+t_float q8_rsqrt(t_float f)
+{
+    long l = *(long *)(&f);
+    if (f < 0) return (0);
+    else return (rsqrt_exptab[(l >> 23) & 0xff] *
+            rsqrt_mantissatab[(l >> 13) & 0x3ff]);
+}
+
+t_float q8_sqrt(t_float f)
+{
+    long l = *(long *)(&f);
+    if (f < 0) return (0);
+    else return (f * rsqrt_exptab[(l >> 23) & 0xff] *
+            rsqrt_mantissatab[(l >> 13) & 0x3ff]);
+}
+
+    /* the old names are OK unless we're in IRIX N32 */
+
+#ifndef N32
+t_float qsqrt(t_float f) {return (q8_sqrt(f)); }
+t_float qrsqrt(t_float f) {return (q8_rsqrt(f)); }
+#endif
diff --git a/externals/vanilla/d_math.h b/externals/vanilla/d_math.h
new file mode 100644
index 00000000..5ef0f0e3
--- /dev/null
+++ b/externals/vanilla/d_math.h
@@ -0,0 +1,21 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+/* these are things used in a number of objectclasses from d_math.c */
+
+#include "m_pd.h"
+
+#define LOGTEN 2.302585092994
+#define DUMTAB1SIZE 256
+#define DUMTAB2SIZE 1024
+
+#ifdef _WIN32
+#define int32 long
+#else
+#include <stdint.h>
+#define int32 int32_t
+#endif
+
+t_float q8_sqrt(t_float f);
+t_float q8_rsqrt(t_float f);
diff --git a/externals/vanilla/dbtopow~.c b/externals/vanilla/dbtopow~.c
new file mode 100644
index 00000000..777c5bf5
--- /dev/null
+++ b/externals/vanilla/dbtopow~.c
@@ -0,0 +1,52 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "d_math.h"
+
+typedef struct dbtopow_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_dbtopow_tilde;
+
+t_class *dbtopow_tilde_class;
+
+static void *dbtopow_tilde_new(void)
+{
+    t_dbtopow_tilde *x = (t_dbtopow_tilde *)pd_new(dbtopow_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *dbtopow_tilde_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; in++, out++)
+    {
+        t_sample f = *in;
+        if (f <= 0) *out = 0;
+        else
+        {
+            if (f > 870)
+                f = 870;
+            *out = exp((LOGTEN * 0.1) * (f-100.));
+        }
+    }
+    return (w + 4);
+}
+
+static void dbtopow_tilde_dsp(t_dbtopow_tilde *x, t_signal **sp)
+{
+    dsp_add(dbtopow_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void dbtopow_tilde_setup(void)
+{
+    dbtopow_tilde_class = class_new(gensym("dbtopow~"), (t_newmethod)dbtopow_tilde_new, 0,
+        sizeof(t_dbtopow_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(dbtopow_tilde_class, t_dbtopow_tilde, x_f);
+    class_addmethod(dbtopow_tilde_class, (t_method)dbtopow_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/dbtorms~.c b/externals/vanilla/dbtorms~.c
new file mode 100644
index 00000000..854f6af7
--- /dev/null
+++ b/externals/vanilla/dbtorms~.c
@@ -0,0 +1,52 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "d_math.h"
+
+typedef struct dbtorms_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_dbtorms_tilde;
+
+t_class *dbtorms_tilde_class;
+
+static void *dbtorms_tilde_new(void)
+{
+    t_dbtorms_tilde *x = (t_dbtorms_tilde *)pd_new(dbtorms_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *dbtorms_tilde_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; in++, out++)
+    {
+        t_sample f = *in;
+        if (f <= 0) *out = 0;
+        else
+        {
+            if (f > 485)
+                f = 485;
+            *out = exp((LOGTEN * 0.05) * (f-100.));
+        }
+    }
+    return (w + 4);
+}
+
+static void dbtorms_tilde_dsp(t_dbtorms_tilde *x, t_signal **sp)
+{
+    dsp_add(dbtorms_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void dbtorms_tilde_setup(void)
+{
+    dbtorms_tilde_class = class_new(gensym("dbtorms~"), (t_newmethod)dbtorms_tilde_new, 0,
+        sizeof(t_dbtorms_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(dbtorms_tilde_class, t_dbtorms_tilde, x_f);
+    class_addmethod(dbtorms_tilde_class, (t_method)dbtorms_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/exp~.c b/externals/vanilla/exp~.c
new file mode 100644
index 00000000..5296544b
--- /dev/null
+++ b/externals/vanilla/exp~.c
@@ -0,0 +1,45 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include <math.h>
+
+static t_class *exp_tilde_class;
+
+typedef struct _exp_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_exp_tilde;
+
+static void *exp_tilde_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_exp_tilde *x = (t_exp_tilde *)pd_new(exp_tilde_class);
+    outlet_new(&x->x_obj, &s_signal);
+    return (x);
+}
+
+t_int *exp_tilde_perform(t_int *w)
+{
+    t_sample *in1 = (t_sample *)(w[1]);
+    t_sample *out = (t_sample *)(w[2]);
+    int n = (int)(w[3]);
+    while (n--)
+        *out++ = exp(*in1++);
+    return (w+4);
+}
+
+static void exp_tilde_dsp(t_exp_tilde *x, t_signal **sp)
+{
+    dsp_add(exp_tilde_perform, 3,
+        sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+static void exp_tilde_setup(void)
+{
+    exp_tilde_class = class_new(gensym("exp~"), (t_newmethod)exp_tilde_new, 0,
+        sizeof(t_exp_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(exp_tilde_class, t_exp_tilde, x_f);
+    class_addmethod(exp_tilde_class, (t_method)exp_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/ftom~.c b/externals/vanilla/ftom~.c
new file mode 100644
index 00000000..cfc63595
--- /dev/null
+++ b/externals/vanilla/ftom~.c
@@ -0,0 +1,47 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include <math.h>
+
+typedef struct ftom_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_ftom_tilde;
+
+t_class *ftom_tilde_class;
+
+static void *ftom_tilde_new(void)
+{
+    t_ftom_tilde *x = (t_ftom_tilde *)pd_new(ftom_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *ftom_tilde_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; *in++, out++)
+    {
+        t_sample f = *in;
+        *out = (f > 0 ? 17.3123405046 * log(.12231220585 * f) : -1500);
+    }
+    return (w + 4);
+}
+
+static void ftom_tilde_dsp(t_ftom_tilde *x, t_signal **sp)
+{
+    dsp_add(ftom_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void ftom_tilde_setup(void)
+{
+    ftom_tilde_class = class_new(gensym("ftom~"), (t_newmethod)ftom_tilde_new, 0,
+        sizeof(t_ftom_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(ftom_tilde_class, t_ftom_tilde, x_f);
+    class_addmethod(ftom_tilde_class, (t_method)ftom_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/log~.c b/externals/vanilla/log~.c
new file mode 100644
index 00000000..0dc5f9fd
--- /dev/null
+++ b/externals/vanilla/log~.c
@@ -0,0 +1,56 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include <math.h>
+
+static t_class *log_tilde_class;
+
+typedef struct _log_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_log_tilde;
+
+static void *log_tilde_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_log_tilde *x = (t_log_tilde *)pd_new(log_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_f = 0;
+    return (x);
+}
+
+t_int *log_tilde_perform(t_int *w)
+{
+    t_sample *in1 = (t_sample *)(w[1]);
+    t_sample *in2 = (t_sample *)(w[2]);
+    t_sample *out = (t_sample *)(w[3]);
+    int n = (int)(w[4]);
+    while (n--)
+    {
+        float f = *in1++, g = *in2++;
+        if (f <= 0)
+            *out = -1000;   /* rather than blow up, output a number << 0 */
+        else if (g <= 0)
+            *out = log(f);
+        else *out = log(f)/log(g);
+        out++;
+    }
+    return (w+5);
+}
+
+static void log_tilde_dsp(t_log_tilde *x, t_signal **sp)
+{
+    dsp_add(log_tilde_perform, 4,
+        sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[0]->s_n);
+}
+
+static void log_tilde_setup(void)
+{
+    log_tilde_class = class_new(gensym("log~"), (t_newmethod)log_tilde_new, 0,
+        sizeof(t_log_tilde), 0, A_DEFFLOAT, 0);
+    CLASS_MAINSIGNALIN(log_tilde_class, t_log_tilde, x_f);
+    class_addmethod(log_tilde_class, (t_method)log_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/mtof~.c b/externals/vanilla/mtof~.c
new file mode 100644
index 00000000..f8fc7de6
--- /dev/null
+++ b/externals/vanilla/mtof~.c
@@ -0,0 +1,52 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include <math.h>
+
+typedef struct mtof_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_mtof_tilde;
+
+t_class *mtof_tilde_class;
+
+static void *mtof_tilde_new(void)
+{
+    t_mtof_tilde *x = (t_mtof_tilde *)pd_new(mtof_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *mtof_tilde_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; in++, out++)
+    {
+        t_sample f = *in;
+        if (f <= -1500) *out = 0;
+        else
+        {
+            if (f > 1499) f = 1499;
+            *out = 8.17579891564 * exp(.0577622650 * f);
+        }
+    }
+    return (w + 4);
+}
+
+static void mtof_tilde_dsp(t_mtof_tilde *x, t_signal **sp)
+{
+    dsp_add(mtof_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void mtof_tilde_setup(void)
+{
+    mtof_tilde_class = class_new(gensym("mtof~"), (t_newmethod)mtof_tilde_new, 0,
+        sizeof(t_mtof_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(mtof_tilde_class, t_mtof_tilde, x_f);
+    class_addmethod(mtof_tilde_class, (t_method)mtof_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/powtodb~.c b/externals/vanilla/powtodb~.c
new file mode 100644
index 00000000..c6310b40
--- /dev/null
+++ b/externals/vanilla/powtodb~.c
@@ -0,0 +1,51 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "d_math.h"
+
+typedef struct powtodb_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_powtodb_tilde;
+
+t_class *powtodb_tilde_class;
+
+static void *powtodb_tilde_new(void)
+{
+    t_powtodb_tilde *x = (t_powtodb_tilde *)pd_new(powtodb_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *powtodb_tilde_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; in++, out++)
+    {
+        t_sample f = *in;
+        if (f <= 0) *out = 0;
+        else
+        {
+            t_sample g = 100 + 10./LOGTEN * log(f);
+            *out = (g < 0 ? 0 : g);
+        }
+    }
+    return (w + 4);
+}
+
+static void powtodb_tilde_dsp(t_powtodb_tilde *x, t_signal **sp)
+{
+    dsp_add(powtodb_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void powtodb_tilde_setup(void)
+{
+    powtodb_tilde_class = class_new(gensym("powtodb~"), (t_newmethod)powtodb_tilde_new, 0,
+        sizeof(t_powtodb_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(powtodb_tilde_class, t_powtodb_tilde, x_f);
+    class_addmethod(powtodb_tilde_class, (t_method)powtodb_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/pow~.c b/externals/vanilla/pow~.c
new file mode 100644
index 00000000..0b3afb57
--- /dev/null
+++ b/externals/vanilla/pow~.c
@@ -0,0 +1,55 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "m_pd.h"
+#include <math.h>
+
+static t_class *pow_tilde_class;
+
+typedef struct _pow_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_pow_tilde;
+
+static void *pow_tilde_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_pow_tilde *x = (t_pow_tilde *)pd_new(pow_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_f = 0;
+    return (x);
+}
+
+t_int *pow_tilde_perform(t_int *w)
+{
+    t_sample *in1 = (t_sample *)(w[1]);
+    t_sample *in2 = (t_sample *)(w[2]);
+    t_sample *out = (t_sample *)(w[3]);
+    int n = (int)(w[4]);
+    while (n--)
+    {
+        float f = *in1++;
+        if (f > 0)
+            *out = pow(f, *in2);
+        else *out = 0;
+        out++;
+        in2++;
+    }
+    return (w+5);
+}
+
+static void pow_tilde_dsp(t_pow_tilde *x, t_signal **sp)
+{
+    dsp_add(pow_tilde_perform, 4,
+        sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[0]->s_n);
+}
+
+static void pow_tilde_setup(void)
+{
+    pow_tilde_class = class_new(gensym("pow~"), (t_newmethod)pow_tilde_new, 0,
+        sizeof(t_pow_tilde), 0, A_DEFFLOAT, 0);
+    CLASS_MAINSIGNALIN(pow_tilde_class, t_pow_tilde, x_f);
+    class_addmethod(pow_tilde_class, (t_method)pow_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/q8_rsqrt~-help.pd b/externals/vanilla/q8_rsqrt~-help.pd
new file mode 100644
index 00000000..865a77ab
--- /dev/null
+++ b/externals/vanilla/q8_rsqrt~-help.pd
@@ -0,0 +1,3 @@
+#N canvas 61 168 450 300 10;
+#X text 75 126 this is a deprecated alias for;
+#X obj 267 126 rsqrt~;
diff --git a/externals/vanilla/q8_rsqrt~.pd b/externals/vanilla/q8_rsqrt~.pd
new file mode 100644
index 00000000..867d3d45
--- /dev/null
+++ b/externals/vanilla/q8_rsqrt~.pd
@@ -0,0 +1,7 @@
+#N canvas 192 364 450 300 10;
+#X obj 149 110 inlet~;
+#X obj 149 169 outlet~;
+#X obj 149 136 rsqrt~;
+#X text 84 56 q8_rsqrt~ is an alias for rsqrt~;
+#X connect 0 0 2 0;
+#X connect 2 0 1 0;
diff --git a/externals/vanilla/q8_sqrt~-help.pd b/externals/vanilla/q8_sqrt~-help.pd
new file mode 100644
index 00000000..85bcb202
--- /dev/null
+++ b/externals/vanilla/q8_sqrt~-help.pd
@@ -0,0 +1,3 @@
+#N canvas 61 168 450 300 10;
+#X text 75 126 this is a deprecated alias for;
+#X obj 267 126 sqrt~;
diff --git a/externals/vanilla/q8_sqrt~.pd b/externals/vanilla/q8_sqrt~.pd
new file mode 100644
index 00000000..6a11448a
--- /dev/null
+++ b/externals/vanilla/q8_sqrt~.pd
@@ -0,0 +1,7 @@
+#N canvas 192 364 450 300 10;
+#X obj 149 110 inlet~;
+#X obj 149 169 outlet~;
+#X obj 149 136 sqrt~;
+#X text 84 56 q8_sqrt~ is an alias for sqrt~;
+#X connect 0 0 2 0;
+#X connect 2 0 1 0;
diff --git a/externals/vanilla/rmstodb~.c b/externals/vanilla/rmstodb~.c
new file mode 100644
index 00000000..a540877a
--- /dev/null
+++ b/externals/vanilla/rmstodb~.c
@@ -0,0 +1,51 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "d_math.h"
+
+typedef struct rmstodb_tilde
+{
+    t_object x_obj;
+    t_float x_f;
+} t_rmstodb_tilde;
+
+t_class *rmstodb_tilde_class;
+
+static void *rmstodb_tilde_new(void)
+{
+    t_rmstodb_tilde *x = (t_rmstodb_tilde *)pd_new(rmstodb_tilde_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *rmstodb_tilde_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    for (; n--; in++, out++)
+    {
+        t_sample f = *in;
+        if (f <= 0) *out = 0;
+        else
+        {
+            t_sample g = 100 + 20./LOGTEN * log(f);
+            *out = (g < 0 ? 0 : g);
+        }
+    }
+    return (w + 4);
+}
+
+static void rmstodb_tilde_dsp(t_rmstodb_tilde *x, t_signal **sp)
+{
+    dsp_add(rmstodb_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void rmstodb_tilde_setup(void)
+{
+    rmstodb_tilde_class = class_new(gensym("rmstodb~"), (t_newmethod)rmstodb_tilde_new, 0,
+        sizeof(t_rmstodb_tilde), 0, 0);
+    CLASS_MAINSIGNALIN(rmstodb_tilde_class, t_rmstodb_tilde, x_f);
+    class_addmethod(rmstodb_tilde_class, (t_method)rmstodb_tilde_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/rsqrt~.c b/externals/vanilla/rsqrt~.c
new file mode 100644
index 00000000..ce558f5c
--- /dev/null
+++ b/externals/vanilla/rsqrt~.c
@@ -0,0 +1,80 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "d_math.h"
+#include "m_pd.h"
+#include <math.h>
+
+/* sigrsqrt - reciprocal square root good to 8 mantissa bits  */
+
+static float rsqrt_exptab[DUMTAB1SIZE], rsqrt_mantissatab[DUMTAB2SIZE];
+
+static void init_rsqrt(void)
+{
+    int i;
+    for (i = 0; i < DUMTAB1SIZE; i++)
+    {
+        float f;
+        int32 l = (i ? (i == DUMTAB1SIZE-1 ? DUMTAB1SIZE-2 : i) : 1)<< 23;
+        *(int32 *)(&f) = l;
+        rsqrt_exptab[i] = 1./sqrt(f);   
+    }
+    for (i = 0; i < DUMTAB2SIZE; i++)
+    {
+        float f = 1 + (1./DUMTAB2SIZE) * i;
+        rsqrt_mantissatab[i] = 1./sqrt(f);      
+    }
+}
+
+typedef struct sigrsqrt
+{
+    t_object x_obj;
+    t_float x_f;
+} t_sigrsqrt;
+
+static t_class *sigrsqrt_class;
+
+static void *sigrsqrt_new(void)
+{
+    t_sigrsqrt *x = (t_sigrsqrt *)pd_new(sigrsqrt_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *sigrsqrt_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    while (n--)
+    {   
+        t_sample f = *in;
+        long l = *(long *)(in++);
+        if (f < 0) *out++ = 0;
+        else
+        {
+            t_sample g = rsqrt_exptab[(l >> 23) & 0xff] *
+                rsqrt_mantissatab[(l >> 13) & 0x3ff];
+            *out++ = 1.5 * g - 0.5 * g * g * g * f;
+        }
+    }
+    return (w + 4);
+}
+
+static void sigrsqrt_dsp(t_sigrsqrt *x, t_signal **sp)
+{
+    dsp_add(sigrsqrt_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void rsqrt_tilde_setup(void)
+{
+    init_rsqrt();
+    sigrsqrt_class = class_new(gensym("rsqrt~"), (t_newmethod)sigrsqrt_new, 0,
+        sizeof(t_sigrsqrt), 0, 0);
+            /* an old name for it: */
+    class_addcreator(sigrsqrt_new, gensym("q8_rsqrt~"), 0);
+    CLASS_MAINSIGNALIN(sigrsqrt_class, t_sigrsqrt, x_f);
+    class_addmethod(sigrsqrt_class, (t_method)sigrsqrt_dsp, gensym("dsp"), 0);
+}
+
diff --git a/externals/vanilla/sqrt~.c b/externals/vanilla/sqrt~.c
new file mode 100644
index 00000000..ea3da693
--- /dev/null
+++ b/externals/vanilla/sqrt~.c
@@ -0,0 +1,56 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include "d_math.h"
+
+static float rsqrt_exptab[DUMTAB1SIZE], rsqrt_mantissatab[DUMTAB2SIZE];
+
+typedef struct sigsqrt
+{
+    t_object x_obj;
+    t_float x_f;
+} t_sigsqrt;
+
+static t_class *sigsqrt_class;
+
+static void *sigsqrt_new(void)
+{
+    t_sigsqrt *x = (t_sigsqrt *)pd_new(sigsqrt_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+t_int *sigsqrt_perform(t_int *w)    /* not static; also used in d_fft.c */
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    while (n--)
+    {   
+        t_sample f = *in;
+        long l = *(long *)(in++);
+        if (f < 0) *out++ = 0;
+        else
+        {
+            t_sample g = rsqrt_exptab[(l >> 23) & 0xff] *
+                rsqrt_mantissatab[(l >> 13) & 0x3ff];
+            *out++ = f * (1.5 * g - 0.5 * g * g * g * f);
+        }
+    }
+    return (w + 4);
+}
+
+static void sigsqrt_dsp(t_sigsqrt *x, t_signal **sp)
+{
+    dsp_add(sigsqrt_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void sqrt_tilde_setup(void)
+{
+    sigsqrt_class = class_new(gensym("sqrt~"), (t_newmethod)sigsqrt_new, 0,
+        sizeof(t_sigsqrt), 0, 0);
+    class_addcreator(sigsqrt_new, gensym("q8_sqrt~"), 0);   /* old name */
+    CLASS_MAINSIGNALIN(sigsqrt_class, t_sigsqrt, x_f);
+    class_addmethod(sigsqrt_class, (t_method)sigsqrt_dsp, gensym("dsp"), 0);
+}
diff --git a/externals/vanilla/wrap~.c b/externals/vanilla/wrap~.c
new file mode 100644
index 00000000..ef7137ab
--- /dev/null
+++ b/externals/vanilla/wrap~.c
@@ -0,0 +1,53 @@
+/* Copyright (c) 1997-2001 Miller Puckette and others.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+/*  mathematical functions and other transfer functions, including tilde
+    versions of stuff from x_acoustics.c.
+*/
+
+#include "m_pd.h"
+#include <math.h>
+
+typedef struct wrap
+{
+    t_object x_obj;
+    t_float x_f;
+} t_sigwrap;
+
+t_class *sigwrap_class;
+
+static void *sigwrap_new(void)
+{
+    t_sigwrap *x = (t_sigwrap *)pd_new(sigwrap_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *sigwrap_perform(t_int *w)
+{
+    t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2);
+    t_int n = *(t_int *)(w+3);
+    while (n--)
+    {   
+        t_sample f = *in++;
+        int k = f;
+        if (f > 0) *out++ = f-k;
+        else *out++ = f - (k-1);
+    }
+    return (w + 4);
+}
+
+static void sigwrap_dsp(t_sigwrap *x, t_signal **sp)
+{
+    dsp_add(sigwrap_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void wrap_tilde_setup(void)
+{
+    sigwrap_class = class_new(gensym("wrap~"), (t_newmethod)sigwrap_new, 0,
+        sizeof(t_sigwrap), 0, 0);
+    CLASS_MAINSIGNALIN(sigwrap_class, t_sigwrap, x_f);
+    class_addmethod(sigwrap_class, (t_method)sigwrap_dsp, gensym("dsp"), 0);
+}