build Pd's extra as a libdir

svn path=/trunk/; revision=14694

6 files changed, 1008 insertions, 0 deletions

diff --git a/externals/extra/pd~/notes.txt b/externals/extra/pd~/notes.txt
new file mode 100644
index 00000000..59129d5a
--- /dev/null
+++ b/externals/extra/pd~/notes.txt
@@ -0,0 +1,8 @@
+pd -schedlib `pwd`/pdsched
+
+dolist:
+pd~ to delay starting subproc until asked
+figure out about setting nchannels from command line
+fix maximum nchannels in and out
+
+
diff --git a/externals/extra/pd~/pdsched.c b/externals/extra/pd~/pdsched.c
new file mode 100644
index 00000000..7efe49a9
--- /dev/null
+++ b/externals/extra/pd~/pdsched.c
@@ -0,0 +1,85 @@
+/* Copyright 2008 Miller Puckette.  Berkeley license; see the
+file LICENSE.txt in this distribution. */
+
+/* A plug-in scheduler that turns Pd into a filter that inputs and
+outputs audio and messages. */
+
+/* todo: 
+    fix schedlib code to use extent2
+    figure out about  if (sys_externalschedlib) { return; } in s_audio.c
+    make buffer size ynamically growable
+
+*/    
+#include "m_pd.h"
+#include "s_stuff.h"
+#include <stdio.h>
+
+#define BUFSIZE 65536
+static char inbuf[BUFSIZE];
+
+int pd_extern_sched(char *flags)
+{
+    int naudioindev, audioindev[MAXAUDIOINDEV], chindev[MAXAUDIOINDEV];
+    int naudiooutdev, audiooutdev[MAXAUDIOOUTDEV], choutdev[MAXAUDIOOUTDEV];
+    int i, j, rate, advance, callback, chin, chout, fill = 0, c;
+    t_binbuf *b = binbuf_new();
+
+    sys_get_audio_params(&naudioindev, audioindev, chindev,
+        &naudiooutdev, audiooutdev, choutdev, &rate, &advance, &callback);
+
+    chin = (naudioindev < 1 ? 0 : chindev[0]);
+    chout = (naudiooutdev < 1 ? 0 : choutdev[0]);
+
+    fprintf(stderr, "Pd plug-in scheduler called, chans %d %d, sr %d\n",
+        chin, chout, (int)rate);
+    sys_setchsr(chin, chout, rate);
+    sys_audioapi = API_NONE;
+    while ((c = getchar()) != EOF)
+    {
+        if (c == ';')
+        {
+            int n;
+            t_atom *ap;
+            binbuf_text(b, inbuf, fill);
+            n = binbuf_getnatom(b);
+            ap = binbuf_getvec(b);
+            fill = 0;
+            if (n > 0 && ap[0].a_type == A_FLOAT)
+            {
+                /* a list -- take it as incoming signals. */
+                int chan, nchan = n/DEFDACBLKSIZE;
+                t_sample *fp;
+                for (i = chan = 0, fp = sys_soundin; chan < nchan; chan++)
+                    for (j = 0; j < DEFDACBLKSIZE; j++)
+                        *fp++ = atom_getfloat(ap++);
+                for (; chan < chin; chan++)
+                    for (j = 0; j < DEFDACBLKSIZE; j++)
+                        *fp++ = 0;
+                sched_tick(sys_time+sys_time_per_dsp_tick);
+                sys_pollgui();
+                printf(";\n");
+                for (i = chout*DEFDACBLKSIZE, fp = sys_soundout; i--; fp++)
+                {
+                    printf("%g\n", *fp);
+                    *fp = 0;
+                }
+                printf(";\n");
+                fflush(stdout);
+            }
+            else if (n > 1 && ap[0].a_type == A_SYMBOL)
+            {
+                t_pd *whom = ap[0].a_w.w_symbol->s_thing;
+                if (!whom)
+                    error("%s: no such object", ap[0].a_w.w_symbol->s_name);
+                else if (ap[1].a_type == A_SYMBOL)
+                    typedmess(whom, ap[1].a_w.w_symbol, n-2, ap+2);
+                else pd_list(whom, 0, n-1, ap+1);
+            }
+        }
+        else if (fill < BUFSIZE)
+            inbuf[fill++] = c;
+        else if (fill == BUFSIZE)
+            fprintf(stderr, "pd-extern: input buffer overflow\n");
+    }
+    return (0);
+}
diff --git a/externals/extra/pd~/pd~-help.pd b/externals/extra/pd~/pd~-help.pd
new file mode 100644
index 00000000..8bc357e0
--- /dev/null
+++ b/externals/extra/pd~/pd~-help.pd
@@ -0,0 +1,75 @@
+#N canvas 12 0 566 872 12;
+#X msg 31 406 foo bar baz;
+#X obj 189 466 osc~ 440;
+#X obj 127 645 env~ 8192;
+#X floatatom 127 694 5 0 0 0 - - -;
+#X msg 434 807 \; pd dsp 1;
+#X msg 24 332 pd~ stop;
+#X obj 127 670 i;
+#X obj 241 643 env~ 8192;
+#X floatatom 241 693 5 0 0 0 - - -;
+#X obj 241 669 i;
+#X obj 123 489 *~;
+#X obj 158 490 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X obj 189 490 *~;
+#X obj 224 491 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X obj 434 781 loadbang;
+#X obj 14 691 print x;
+#X msg 15 309 pd~ start pd~-subprocess.pd;
+#X obj 14 532 pd~ -ninsig 2 -noutsig 2 -fifo 20;
+#X obj 37 20 pd~;
+#X text 69 22 - run a pd sub-process;
+#X text 27 57 The pd~ object starts and manages a Pd sub-process that
+can communicate with the super-process (this one) via audio channels
+and/or Pd messages. In this way you can take advantage of multi-core
+CPUs \, and/or use Pd features from within Max (if you're using the
+Max version of pd~).;
+#X text 24 251 Sending a new "start" message will stop the sub-process
+and start a new one. If you just want to stop the sub-process \, send
+"stop".;
+#X text 33 353 Any message besides "pd~" is sent to the sub-process.
+For instance \, the message below sends "bar baz" to any object in
+the sub-process named "foo" \, such as a "receive" object.;
+#X text 43 430 Audio signals appear in adc~ objects in the sub-process.
+The sub-process doesn't open real audio devices.;
+#X text 281 473 Creation args:;
+#X text 265 490 -insig <n> sets input audio channels;
+#X text 266 508 -outsig <n> sets output channels;
+#X text 269 542 -fifo <n> sets round-trip delay in blocks;
+#X text 272 559 -pddir <s> sets Pd directory \, e.g. \,;
+#X text 299 574 .../Pd-0.42.app/Contents/Resources;
+#X text 272 590 -scheddir <s> sets scheduler dir \, e.g. \,;
+#X text 297 607 .../.../Resources/extra/pd~;
+#X text 267 524 -sr <n> sets sample rate;
+#X text 20 716 The first outlet reports messages the sub-process sends
+us via "stdout" objects. Any other outlets are signals corresponding
+to "dac~" objects in the sub-process.;
+#X text 10 784 ATTENTION: DSP must be running in this process for the
+sub-process to run. This is because its clock is slaved to audio I/O
+it gets from us!;
+#X text 359 849 Updated for Pd version 0.42.;
+#X text 24 138 Messages with "pd~" selector control the sub-process.
+"pd~ start" takes as arguments any startup arguments you wish to send
+the sub-process. For example \, specify "-nogui" to stop the sub-process's
+GUI from appearing. You don't have to specify the number of channels
+in and out \, since that's set by creation arguments below. Audio config
+arguments arguments (-audiobuf \, -audiodev \, etc.) are ignored.;
+#X connect 0 0 17 0;
+#X connect 1 0 10 0;
+#X connect 1 0 12 0;
+#X connect 2 0 6 0;
+#X connect 5 0 17 0;
+#X connect 6 0 3 0;
+#X connect 7 0 9 0;
+#X connect 9 0 8 0;
+#X connect 10 0 17 0;
+#X connect 11 0 10 1;
+#X connect 12 0 17 1;
+#X connect 13 0 12 1;
+#X connect 14 0 4 0;
+#X connect 16 0 17 0;
+#X connect 17 0 15 0;
+#X connect 17 1 2 0;
+#X connect 17 2 7 0;
diff --git a/externals/extra/pd~/pd~-subprocess.pd b/externals/extra/pd~/pd~-subprocess.pd
new file mode 100644
index 00000000..1d883ab1
--- /dev/null
+++ b/externals/extra/pd~/pd~-subprocess.pd
@@ -0,0 +1,60 @@
+#N canvas 577 21 563 559 12;
+#X obj 202 395 r foo;
+#X obj 202 423 print foo;
+#X obj 87 174 adc~;
+#X obj 72 442 stdout;
+#X msg 72 364 a b c;
+#X msg 455 441 \; pd dsp 1;
+#X obj 87 201 env~ 8192;
+#X floatatom 87 250 5 0 0 0 - - -;
+#X obj 87 226 i;
+#X obj 263 253 dac~;
+#X obj 262 185 osc~ 440;
+#X obj 262 219 *~;
+#X obj 297 220 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X obj 332 186 osc~ 440;
+#X obj 332 220 *~;
+#X obj 367 221 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X msg 86 411 bang;
+#X obj 455 417 loadbang;
+#X obj 160 201 env~ 8192;
+#X floatatom 160 250 5 0 0 0 - - -;
+#X obj 160 226 i;
+#X msg 86 388 4;
+#X text 62 8 This is a test patch to demonstrate the Pd~ object. It's
+intended as the patch to run in the sub-process. The sub-process (which
+is a separate instance of Pd) can be called from a Max or Pd super-process.
+;
+#X text 63 73 Audio inlets and outlets on the Pd~ object (in the super-process)
+talk to adc~ and dac~ objects here - so \, for instance \, the first
+adc~ here is the first inlet of the pd~ object \, and the first chanel
+of dac~ goes to the second outlet of pd~ (because the first one is
+for messages \, as shown further below.);
+#X text 58 283 Any message sent to a stdout object in this sub-process
+(below) appears on the first \, message outlet of the pd~ object in
+the super-process. The super-process can send messages to any "receive"
+object in this sub-process.;
+#X text 137 478 We turn DSP on at load for convenience - control objects
+in this patch will still work without it (unlike in the super-process
+\, where DSP must be on for time to move forward in the sub-process.)
+;
+#X text 351 538 Updated for Pd version 0.42.;
+#X connect 0 0 1 0;
+#X connect 2 0 6 0;
+#X connect 2 1 18 0;
+#X connect 4 0 3 0;
+#X connect 6 0 8 0;
+#X connect 8 0 7 0;
+#X connect 10 0 11 0;
+#X connect 11 0 9 0;
+#X connect 12 0 11 1;
+#X connect 13 0 14 0;
+#X connect 14 0 9 1;
+#X connect 15 0 14 1;
+#X connect 16 0 3 0;
+#X connect 17 0 5 0;
+#X connect 18 0 20 0;
+#X connect 20 0 19 0;
+#X connect 21 0 3 0;
diff --git a/externals/extra/pd~/pd~.c b/externals/extra/pd~/pd~.c
new file mode 100644
index 00000000..165065f8
--- /dev/null
+++ b/externals/extra/pd~/pd~.c
@@ -0,0 +1,765 @@
+/*
+  pd~.c - embed a Pd process within Pd or Max.
+
+  Copyright 2008 Miller Puckette
+  BSD license; see README.txt in this distribution for details.
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#ifdef NT
+#pragma warning (disable: 4305 4244)
+#endif
+
+#ifdef MSP
+#include "ext.h"
+#include "z_dsp.h"
+#include "math.h"
+#include "ext_support.h"
+#include "ext_proto.h"
+#include "ext_obex.h"
+
+typedef double t_floatarg;
+#define w_symbol w_sym
+#define A_SYMBOL A_SYM
+#define getbytes t_getbytes
+#define freebytes t_freebytes
+#define ERROR error(
+void *pd_tilde_class;
+#define MAXPDSTRING 4096
+#define DEFDACBLKSIZE 64
+#endif /* MSP */
+
+#ifdef PD
+#include "m_pd.h"
+#include "s_stuff.h"
+static t_class *pd_tilde_class;
+char *class_gethelpdir(t_class *c);
+#define ERROR pd_error(x, 
+
+#endif
+
+#ifdef __linux__
+#ifdef __x86_64__
+static char pd_tilde_dllextent[] = ".l_ia64",
+    pd_tilde_dllextent2[] = ".pd_linux";
+#else
+static char pd_tilde_dllextent[] = ".l_i386",
+    pd_tilde_dllextent2[] = ".pd_linux";
+#endif
+#endif
+#ifdef __APPLE__
+static char pd_tilde_dllextent[] = ".d_fat",
+    pd_tilde_dllextent2[] = ".pd_darwin";
+#endif
+
+/* ------------------------ pd_tilde~ ----------------------------- */
+
+#define MSGBUFSIZE 65536
+
+typedef struct _pd_tilde
+{
+#ifdef PD
+    t_object x_obj;
+    t_clock *x_clock;
+    t_outlet *x_outlet1;        /* for messages back from subproc */
+    t_canvas *x_canvas;
+#endif /* PD */
+#ifdef MSP
+    t_pxobject x_obj;
+    void *x_outlet1;
+    void *x_clock;
+#endif /* MSP */
+    FILE *x_infd;
+    FILE *x_outfd;
+    char *x_msgbuf;
+    int x_msgbufsize;
+    int x_infill;
+    int x_childpid;
+    int x_ninsig;
+    int x_noutsig;
+    int x_fifo;
+    float x_sr;
+    t_symbol *x_pddir;
+    t_symbol *x_schedlibdir;
+    t_sample **x_insig;
+    t_sample **x_outsig;
+} t_pd_tilde;
+
+#ifdef MSP
+static void *pd_tilde_new(t_symbol *s, long ac, t_atom *av);
+static void pd_tilde_tick(t_pd_tilde *x);
+static t_int *pd_tilde_perform(t_int *w);
+static void pd_tilde_dsp(t_pd_tilde *x, t_signal **sp);
+void pd_tilde_assist(t_pd_tilde *x, void *b, long m, long a, char *s);
+static void pd_tilde_free(t_pd_tilde *x);
+void pd_tilde_setup(void);
+int main();
+void pd_tilde_minvel_set(t_pd_tilde *x, void *attr, long ac, t_atom *av);
+char *strcpy(char *s1, const char *s2);
+#endif
+
+static void pd_tilde_tick(t_pd_tilde *x);
+static void pd_tilde_close(t_pd_tilde *x)
+{
+    if (x->x_outfd)
+        fclose(x->x_outfd);
+    if (x->x_infd)
+        fclose(x->x_infd);
+    if (x->x_childpid > 0)
+        waitpid(x->x_childpid, 0, 0);
+    if (x->x_msgbuf)
+        free(x->x_msgbuf);
+    x->x_infd = x->x_outfd = 0;
+    x->x_childpid = -1;
+    x->x_msgbuf = 0;
+    x->x_msgbufsize = 0;
+}
+
+static void pd_tilde_readmessages(t_pd_tilde *x)
+{
+    int gotsomething = 0, setclock = 0, wasempty = (x->x_infill == 0);
+    FILE *infd = x->x_infd;
+    while (1)
+    {
+        int c = getc(infd);
+        if (c == EOF)
+        {
+            ERROR "pd~: %s", strerror(errno));
+            pd_tilde_close(x);
+            break;
+        }
+        if (x->x_infill >= x->x_msgbufsize)
+        {
+            char *z = realloc(x->x_msgbuf, x->x_msgbufsize+MSGBUFSIZE);
+            if (!z)
+            {
+                ERROR "pd~: failed to grow input buffer");
+                pd_tilde_close(x);
+                break;
+            }
+            x->x_msgbuf = z;
+            x->x_msgbufsize += MSGBUFSIZE;
+        }
+        x->x_msgbuf[x->x_infill++] = c;
+        if (c == ';')
+        {
+            if (!gotsomething)
+                break;
+            gotsomething = 0;
+        }
+        else if (!isspace(c))
+            gotsomething = setclock = 1;
+    }
+    if (setclock)
+        clock_delay(x->x_clock, 0);
+    else if (wasempty)
+        x->x_infill = 0;
+}
+
+static void pd_tilde_donew(t_pd_tilde *x, char *pddir, char *schedlibdir,
+    char *patchdir, char *pdargs, int ninsig, int noutsig, int fifo,
+    float samplerate)
+{
+    int i, pid, pipe1[2], pipe2[2];
+    char cmdbuf[MAXPDSTRING], pdexecbuf[MAXPDSTRING], schedbuf[MAXPDSTRING];
+    struct stat statbuf;
+    x->x_infd = x->x_outfd = 0;
+    x->x_childpid = -1;
+    snprintf(pdexecbuf, MAXPDSTRING, "%s/bin/pd", pddir);
+    if (stat(pdexecbuf, &statbuf) < 0)
+    {
+        snprintf(pdexecbuf, MAXPDSTRING, "%s/../../../bin/pd", pddir);
+        if (stat(pdexecbuf, &statbuf) < 0)
+        {
+            snprintf(pdexecbuf, MAXPDSTRING, "%s/pd", pddir);
+            if (stat(pdexecbuf, &statbuf) < 0)
+            {
+                ERROR "pd~: can't stat %s", pdexecbuf);
+                goto fail1;
+            }
+        }
+    }
+    snprintf(schedbuf, MAXPDSTRING, "%s/pdsched%s", schedlibdir, 
+        pd_tilde_dllextent);
+    if (stat(schedbuf, &statbuf) < 0)
+    {
+        snprintf(schedbuf, MAXPDSTRING, "%s/pdsched%s", schedlibdir, 
+            pd_tilde_dllextent2);
+        if (stat(schedbuf, &statbuf) < 0)
+        {
+            ERROR "pd~: can't stat %s", schedbuf);
+            goto fail1;
+        }       
+    }
+    snprintf(cmdbuf, MAXPDSTRING,
+"%s -schedlib %s/pdsched -path %s -inchannels %d -outchannels %d -r %g %s\n",
+        pdexecbuf, schedlibdir, patchdir, ninsig, noutsig, samplerate, pdargs);
+#if 0
+#ifdef PD
+    fprintf(stderr, "%s", cmdbuf);
+#endif
+    post("cmd: %s", cmdbuf);
+#endif
+    if (pipe(pipe1) < 0)   
+    {
+        ERROR "pd~: can't create pipe");
+        goto fail1;
+    }
+    if (pipe(pipe2) < 0)   
+    {
+        ERROR "pd~: can't create pipe");
+        goto fail2;
+    }
+    if ((pid = fork()) < 0)
+    {
+        ERROR "pd~: can't fork");
+        goto fail3;
+    }
+    else if (pid == 0)
+    {
+        /* child process */
+        if (pipe2[1] == 0)
+        {
+            dup2(pipe2[1], 20);
+            close(pipe2[1]);
+            pipe2[1] = 20;
+        }
+        dup2(pipe1[0], 0);
+        dup2(pipe2[1], 1);
+        if (pipe1[0] >= 2)
+            close(pipe1[0]);
+        if (pipe1[1] >= 2)
+            close(pipe1[1]);
+        if (pipe2[0] >= 2)
+            close(pipe2[0]);
+        if (pipe2[1] >= 2)
+            close(pipe2[1]);
+        execl("/bin/sh", "sh", "-c", cmdbuf, (char*)0);
+        _exit(1);
+    }
+        /* OK, we're parent */
+    close(pipe1[0]);
+    close(pipe2[1]);
+    x->x_outfd = fdopen(pipe1[1], "w");
+    x->x_infd = fdopen(pipe2[0], "r");
+    x->x_childpid = pid;
+    for (i = 0; i < fifo; i++)
+        fprintf(x->x_outfd, "%s", ";\n0;\n");
+    fflush(x->x_outfd);
+    if (!(x->x_msgbuf = calloc(MSGBUFSIZE, 1)))
+    {
+        ERROR "pd~: can't allocate message buffer");
+        goto fail3;
+    }
+    x->x_msgbufsize = MSGBUFSIZE;
+    x->x_infill = 0;
+    /* fprintf(stderr, "read...\n"); */
+    pd_tilde_readmessages(x);
+    /* fprintf(stderr, "... done.\n"); */
+    return;
+fail3:
+    close(pipe2[0]);
+    close(pipe2[1]);
+    if (x->x_childpid > 0)
+        waitpid(x->x_childpid, 0, 0);
+fail2:
+    close(pipe1[0]);
+    close(pipe1[1]);
+fail1:
+    x->x_infd = x->x_outfd = 0;
+    x->x_childpid = -1;
+    return;
+}
+
+static t_int *pd_tilde_perform(t_int *w)
+{
+    t_pd_tilde *x = (t_pd_tilde *)(w[1]);
+    int n = (int)(w[2]), i, j, numbuffill = 0, c;
+    char numbuf[80];
+    FILE *infd = x->x_infd;
+    if (!infd)
+        goto zeroit;
+    fprintf(x->x_outfd, ";\n");
+    if (!x->x_ninsig)
+        fprintf(x->x_outfd, "0\n");
+    else for (i = 0; i < x->x_ninsig; i++)
+    {
+        t_sample *fp = x->x_insig[i];
+        for (j = 0; j < n; j++)
+            fprintf(x->x_outfd, "%g\n", *fp++);
+        for (; j < DEFDACBLKSIZE; j++)
+            fprintf(x->x_outfd, "0\n");
+    }
+    fprintf(x->x_outfd, ";\n");
+    fflush(x->x_outfd);
+    i = j = 0;
+    while (1)
+    {
+        while (1)
+        {
+            c = getc(infd);
+            if (c == EOF)
+            {
+                if (errno)
+                    ERROR "pd~: %s", strerror(errno));
+                else ERROR "pd~: subprocess exited");
+                pd_tilde_close(x);
+                goto zeroit;
+            }
+            else if (!isspace(c) && c != ';')
+            {
+                if (numbuffill < (80-1))
+                    numbuf[numbuffill++] = c;
+            }
+            else
+            {
+                t_sample z;
+                if (numbuffill)
+                {
+                    numbuf[numbuffill] = 0;
+                    if (sscanf(numbuf, "%f", &z) < 1)
+                        continue;
+                    if (i < x->x_noutsig)
+                        x->x_outsig[i][j] = z;
+                    if (++j >= DEFDACBLKSIZE)
+                        j = 0, i++;
+                }
+                numbuffill = 0;
+                break;
+            }
+        }
+        /* message terminated */
+        if (c == ';')
+            break;
+    }
+    for (; i < x->x_noutsig; i++, j = 0)
+    {
+        for (; j < DEFDACBLKSIZE; j++)
+            x->x_outsig[i][j] = 0;
+    }
+    pd_tilde_readmessages(x);
+    return (w+3);
+zeroit:
+    for (i = 0; i < x->x_noutsig; i++)
+    {
+        for (j = 0; j < DEFDACBLKSIZE; j++)
+            x->x_outsig[i][j] = 0;
+    }
+    return (w+3);
+}
+
+static void pd_tilde_dsp(t_pd_tilde *x, t_signal **sp)
+{
+    int i, n = (x->x_ninsig || x->x_noutsig ? sp[0]->s_n : 1);
+    t_sample **g;
+        
+    for (i = 0, g = x->x_insig; i < x->x_ninsig; i++, g++)
+        *g = (*(sp++))->s_vec;
+    
+    for (i = 0, g = x->x_outsig; i < x->x_noutsig; i++, g++)
+        *g = (*(sp++))->s_vec;
+    
+    dsp_add(pd_tilde_perform, 2, x, n);
+}
+
+static void pd_tilde_pdtilde(t_pd_tilde *x, t_symbol *s,
+    int argc, t_atom *argv)
+{
+    t_symbol *sel = ((argc > 0 && argv->a_type == A_SYMBOL) ?
+        argv->a_w.w_symbol : gensym("?")), *schedlibdir;
+    char *patchdir;
+    if (sel == gensym("start"))
+    {
+        char pdargstring[MAXPDSTRING];
+        if (x->x_infd)
+            pd_tilde_close(x);
+        pdargstring[0] = 0;
+        argc--; argv++;
+#ifdef PD
+        while (argc--)
+        {
+            atom_string(argv++, pdargstring + strlen(pdargstring), 
+                MAXPDSTRING - strlen(pdargstring));
+            if (strlen(pdargstring) < MAXPDSTRING-1)
+                strcat(pdargstring, " ");
+        }
+        patchdir = canvas_getdir(x->x_canvas)->s_name;
+#endif
+#ifdef MSP
+        while (argc--)
+        {
+                /* because Mac pathnames sometimes have an evil preceeding
+                colon character, we test for and silently eat them */
+            if (argv->a_type == A_SYM)
+                strncat(pdargstring, (*argv->a_w.w_sym->s_name == ':'?
+                    argv->a_w.w_sym->s_name+1 : argv->a_w.w_sym->s_name),
+                    MAXPDSTRING - strlen(pdargstring)-3);
+            else if (argv->a_type == A_LONG)
+                snprintf(pdargstring+strlen(pdargstring),
+                    MAXPDSTRING - strlen(pdargstring)-3, "%ld",
+                        argv->a_w.w_long);
+            else if (argv->a_type == A_FLOAT)
+                snprintf(pdargstring+strlen(pdargstring),
+                    MAXPDSTRING - strlen(pdargstring)-3, "%f",
+                        argv->a_w.w_float);
+            strcat(pdargstring, " ");
+            argv++;
+        }
+        patchdir = ".";
+#endif
+        schedlibdir = x->x_schedlibdir;
+        if (schedlibdir == gensym(".") && x->x_pddir != gensym("."))
+        {
+            char *pds = x->x_pddir->s_name, scheddirstring[MAXPDSTRING];
+            int l = strlen(pds);
+            if (l >= 4 && (!strcmp(pds+l-3, "bin") || !strcmp(pds+l-4, "bin/")))
+                snprintf(scheddirstring, MAXPDSTRING, "%s/../extra/pd~", pds);
+            else snprintf(scheddirstring, MAXPDSTRING, "%s/extra/pd~", pds);
+            schedlibdir = gensym(scheddirstring);
+        }
+        pd_tilde_donew(x, x->x_pddir->s_name, schedlibdir->s_name,
+            patchdir, pdargstring, x->x_ninsig, x->x_noutsig, x->x_fifo,
+                x->x_sr);
+    }
+    else if (sel == gensym("stop"))
+    {
+        if (x->x_infd)
+            pd_tilde_close(x);
+    }
+    else if (sel == gensym("pddir"))
+    {
+        if ((argc > 1) && argv[1].a_type == A_SYMBOL)
+        {
+            t_symbol *sym = argv[1].a_w.w_symbol;
+#ifdef MSP
+            if (sym->s_name[0] == ':')
+                sym = gensym(s->s_name+1);
+#endif
+            x->x_pddir = sym;
+        }
+        else ERROR "pd~ pddir: needs symbol argument");
+    }
+    else ERROR "pd~: unknown control message: %s", sel->s_name);
+}
+
+static void pd_tilde_free(t_pd_tilde *x)
+{
+#ifdef MSP
+    dsp_free((t_pxobject *)x);
+#endif
+    pd_tilde_close(x);
+    clock_free(x->x_clock);
+}
+
+/* -------------------------- Pd glue ------------------------- */
+#ifdef PD
+
+static void pd_tilde_tick(t_pd_tilde *x)
+{
+    int messstart = 0, i, n;
+    t_atom *vec;
+    t_binbuf *b;
+    if (!x->x_msgbuf)
+        return;
+    b = binbuf_new();
+    binbuf_text(b, x->x_msgbuf, x->x_infill);
+    /* binbuf_print(b); */
+    n = binbuf_getnatom(b);
+    vec = binbuf_getvec(b);
+    for (i = 0; i < n; i++)
+    {
+        if (vec[i].a_type == A_SEMI)
+        {
+            if (i > messstart && vec[messstart].a_type == A_SYMBOL)
+                outlet_anything(x->x_outlet1, vec[messstart].a_w.w_symbol,
+                    i-(messstart+1), vec+(messstart+1));
+            else if (i > messstart)
+                outlet_list(x->x_outlet1, 0, i-messstart, vec+messstart);
+            messstart = i+1;
+        }
+    }
+    binbuf_free(b);
+    x->x_infill = 0;
+}
+
+static void pd_tilde_anything(t_pd_tilde *x, t_symbol *s,
+    int argc, t_atom *argv)
+{
+    char msgbuf[MAXPDSTRING];
+    if (!x->x_outfd)
+        return;
+    fprintf(x->x_outfd, "%s ", s->s_name);
+    while (argc--)
+    {
+        atom_string(argv++, msgbuf, MAXPDSTRING);
+        fprintf(x->x_outfd, "%s ", msgbuf);
+    }
+    fprintf(x->x_outfd, ";\n");
+}
+
+static void *pd_tilde_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_pd_tilde *x = (t_pd_tilde *)pd_new(pd_tilde_class);
+    int ninsig = 2, noutsig = 2, j, fifo = 5;
+    float sr = sys_getsr();
+    t_sample **g;
+    t_symbol *pddir = sys_guidir,
+        *scheddir = gensym(class_gethelpdir(pd_tilde_class));
+    /* fprintf(stderr, "pd %s, sched %s\n", pddir->s_name, scheddir->s_name); */
+    while (argc > 0)
+    {
+        t_symbol *firstarg = atom_getsymbolarg(0, argc, argv);
+        if (!strcmp(firstarg->s_name, "-sr") && argc > 1)
+        {
+            sr = atom_getfloatarg(1, argc, argv);
+            argc -= 2; argv += 2;
+        }
+        else if (!strcmp(firstarg->s_name, "-ninsig") && argc > 1)
+        {
+            ninsig = atom_getfloatarg(1, argc, argv);
+            argc -= 2; argv += 2;
+        }
+        else if (!strcmp(firstarg->s_name, "-noutsig") && argc > 1)
+        {
+            noutsig = atom_getfloatarg(1, argc, argv);
+            argc -= 2; argv += 2;
+        }
+        else if (!strcmp(firstarg->s_name, "-fifo") && argc > 1)
+        {
+            fifo = atom_getfloatarg(1, argc, argv);
+            argc -= 2; argv += 2;
+        }
+        else if (!strcmp(firstarg->s_name, "-pddir") && argc > 1)
+        {
+            pddir = atom_getsymbolarg(1, argc, argv);
+            argc -= 2; argv += 2;
+        }
+        else if (!strcmp(firstarg->s_name, "-scheddir") && argc > 1)
+        {
+            scheddir = atom_getsymbolarg(1, argc, argv);
+            argc -= 2; argv += 2;
+        }
+        else break;
+    }
+
+    if (argc)
+    {
+        pd_error(x,
+"usage: pd~ [-sr #] [-ninsig #] [-noutsig #] [-fifo #] [-pddir <>]");
+        post(
+"... [-scheddir <>]");
+    }
+
+    x->x_clock = clock_new(x, (t_method)pd_tilde_tick);
+    x->x_insig = (t_sample **)getbytes(ninsig * sizeof(*x->x_insig));
+    x->x_outsig = (t_sample **)getbytes(noutsig * sizeof(*x->x_outsig));
+    x->x_ninsig = ninsig;
+    x->x_noutsig = noutsig;
+    x->x_fifo = fifo;
+    x->x_sr = sr;
+    x->x_pddir = pddir;
+    x->x_schedlibdir = scheddir;
+    x->x_infd = 0;
+    x->x_outfd = 0;
+    x->x_outfd = 0;
+    x->x_childpid = -1;
+    x->x_msgbuf = 0;
+    x->x_canvas = canvas_getcurrent();
+    for (j = 1, g = x->x_insig; j < ninsig; j++, g++)
+        inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+    x->x_outlet1 = outlet_new(&x->x_obj, 0);
+    for (j = 0, g = x->x_outsig; j < noutsig; j++, g++)
+        outlet_new(&x->x_obj, &s_signal);
+    signal(SIGPIPE, SIG_IGN);
+
+    return (x);
+}
+
+void pd_tilde_setup(void)
+{
+    pd_tilde_class = class_new(gensym("pd~"), (t_newmethod)pd_tilde_new,
+        (t_method)pd_tilde_free, sizeof(t_pd_tilde), 0, A_GIMME, 0);
+    class_addmethod(pd_tilde_class, nullfn, gensym("signal"), 0);
+    class_addmethod(pd_tilde_class, (t_method)pd_tilde_dsp, gensym("dsp"), 0);
+    class_addmethod(pd_tilde_class, (t_method)pd_tilde_pdtilde, gensym("pd~"), A_GIMME, 0);
+    class_addanything(pd_tilde_class, pd_tilde_anything);
+    post("pd~ version 0.2");
+}
+#endif
+
+/* -------------------------- MSP glue ------------------------- */
+#ifdef MSP
+
+#define LOTS 10000
+
+static void pd_tilde_tick(t_pd_tilde *x)
+{
+    int messstart = 0, i, n = 0;
+    t_atom vec[LOTS];
+    long z1 = 0, z2 = 0;
+    void *b;
+    if (!x->x_msgbuf)
+        return;
+    b = binbuf_new();
+    binbuf_text(b, &x->x_msgbuf, x->x_infill);
+    /* binbuf_print(b); */
+    while (!binbuf_getatom(b, &z1, &z2, vec+n))
+    if (++n >= LOTS)
+        break;
+    for (i = 0; i < n; i++)
+    {
+        if (vec[i].a_type == A_SEMI)
+        {
+            if (i > messstart + 1)
+            {
+                void *whom;
+                if (vec[messstart].a_type == A_SYM)
+                    outlet_anything(x->x_outlet1, vec[messstart].a_w.w_sym,
+                        i-messstart-1, vec+(messstart+1));
+                else if (vec[messstart].a_type == A_FLOAT && i == messstart+1)
+                    outlet_float(x->x_outlet1, vec[messstart].a_w.w_float);
+                else if (vec[messstart].a_type == A_LONG && i == messstart+1)
+                    outlet_int(x->x_outlet1, vec[messstart].a_w.w_long);
+                else outlet_list(x->x_outlet1, gensym("list"),
+                    i-messstart, vec+(messstart));
+            }
+            messstart = i+1;
+        }
+    }
+    binbuf_free(b);
+    x->x_infill = 0;
+}
+
+static void pd_tilde_anything(t_pd_tilde *x, t_symbol *s,
+    long ac, t_atom *av)
+{
+    char msgbuf[MAXPDSTRING], *sp, *ep = msgbuf+MAXPDSTRING;
+    if (!x->x_outfd)
+        return;
+    msgbuf[0] = 0;
+    strncpy(msgbuf, s->s_name, MAXPDSTRING);
+    msgbuf[MAXPDSTRING-1] = 0;
+    sp = msgbuf + strlen(msgbuf);
+    while (ac--)
+    {
+        if (sp < ep-1)
+            sp[0] = ' ', sp[1] = 0, sp++;
+        if (sp < ep - 80)
+        {
+            if (av->a_type == A_SYM && strlen(av->a_w.w_sym->s_name) < ep - sp-20)
+                strcpy(sp, av->a_w.w_sym->s_name);
+            else if (av->a_type == A_LONG)
+                sprintf(sp, "%ld" ,av->a_w.w_long);
+            else if (av->a_type == A_FLOAT)
+                sprintf(sp, "%g" ,av->a_w.w_float);
+        }
+        sp += strlen(sp);
+        av++;
+    }
+    fprintf(x->x_outfd, "%s;\n", msgbuf);
+}
+
+int main()
+{       
+    t_class *c;
+
+    c = class_new("pd_tilde~", (method)pd_tilde_new, (method)pd_tilde_free, sizeof(t_pd_tilde), (method)0L, A_GIMME, 0);
+
+    class_addmethod(c, (method)pd_tilde_dsp, "dsp", A_CANT, 0);
+    class_addmethod(c, (method)pd_tilde_assist, "assist", A_CANT, 0);
+    class_addmethod(c, (method)pd_tilde_pdtilde, "pd~", A_GIMME, 0);
+    class_addmethod(c, (method)pd_tilde_anything, "anything", A_GIMME, 0);
+    class_dspinit(c);
+
+    class_register(CLASS_BOX, c);
+    pd_tilde_class = c;
+    post("pd~ version 0.2");
+    return (0);
+}
+
+static void *pd_tilde_new(t_symbol *s, long ac, t_atom *av)
+{
+    int ninsig = 2, noutsig = 2, fifo = 5, j;
+    float sr = sys_getsr();
+    t_symbol *pddir = gensym("."), *scheddir = gensym(".");
+    t_pd_tilde *x;
+
+    if (x = (t_pd_tilde *)object_alloc(pd_tilde_class))
+    {
+        while (ac > 0 && av[0].a_type == A_SYM)
+        {
+            char *flag = av[0].a_w.w_sym->s_name;
+            if (!strcmp(flag, "-sr") && ac > 1)
+            {
+                sr = (av[1].a_type == A_FLOAT ? av[1].a_w.w_float :
+                    (av[1].a_type == A_LONG ? av[1].a_w.w_long : 0));
+                ac -= 2; av += 2;
+            }
+            else if (!strcmp(flag, "-ninsig") && ac > 1)
+            {
+                ninsig = (av[1].a_type == A_FLOAT ? av[1].a_w.w_float :
+                    (av[1].a_type == A_LONG ? av[1].a_w.w_long : 0));
+                ac -= 2; av += 2;
+            }
+            else if (!strcmp(flag, "-noutsig") && ac > 1)
+            {
+                noutsig = (av[1].a_type == A_FLOAT ? av[1].a_w.w_float :
+                    (av[1].a_type == A_LONG ? av[1].a_w.w_long : 0));
+                ac -= 2; av += 2;
+            }
+            else if (!strcmp(flag, "-fifo") && ac > 1)
+            {
+                fifo = (av[1].a_type == A_FLOAT ? av[1].a_w.w_float :
+                    (av[1].a_type == A_LONG ? av[1].a_w.w_long : 0));
+                ac -= 2; av += 2;
+            }
+            else if (!strcmp(flag, "-pddir") && ac > 1)
+            {
+                pddir = (av[1].a_type == A_SYM ? av[1].a_w.w_sym : gensym("."));
+                ac -= 2; av += 2;
+            }
+            else if (!strcmp(flag, "-scheddir") && ac > 1)
+            {
+                scheddir = (av[1].a_type == A_SYM ? av[1].a_w.w_sym : gensym("."));
+                ac -= 2; av += 2;
+            }
+            else break;
+        }
+        if (ac)
+            post("pd~: warning: ignoring extra arguments");
+        dsp_setup((t_pxobject *)x, ninsig);
+        x->x_outlet1 = outlet_new(&x->x_obj, 0);
+        for (j = 0; j < noutsig; j++)
+            outlet_new((t_pxobject *)x, "signal");
+        x->x_clock = clock_new(x, (method)pd_tilde_tick);
+        x->x_insig = (t_sample **)getbytes(ninsig * sizeof(*x->x_insig));
+        x->x_outsig = (t_sample **)getbytes(noutsig * sizeof(*x->x_outsig));
+        x->x_ninsig = ninsig;
+        x->x_noutsig = noutsig;
+        x->x_fifo = fifo;
+        x->x_sr = sr;
+        x->x_pddir = pddir;
+        x->x_schedlibdir = scheddir;
+        x->x_infd = 0;
+        x->x_outfd = 0;
+        x->x_outfd = 0;
+        x->x_childpid = -1;
+        x->x_msgbuf = 0;
+    }
+    return (x);
+}
+
+void pd_tilde_assist(t_pd_tilde *x, void *b, long m, long a, char *s)
+{
+}
+
+#endif /* MSP */
diff --git a/externals/extra/pd~/z.pd b/externals/extra/pd~/z.pd
new file mode 100644
index 00000000..373201da
--- /dev/null
+++ b/externals/extra/pd~/z.pd
@@ -0,0 +1,15 @@
+#N canvas 686 241 450 300 10;
+#X obj 65 58 r foo;
+#X obj 62 100 print foo;
+#X obj 244 59 adc~;
+#X obj 238 102 env~ 8192;
+#X floatatom 236 140 5 0 0 0 - - -;
+#X obj 155 234 dac~;
+#X obj 155 191 osc~ 440;
+#X obj 287 204 stdout;
+#X msg 307 153 a b c;
+#X connect 0 0 1 0;
+#X connect 2 0 3 0;
+#X connect 3 0 4 0;
+#X connect 6 0 5 0;
+#X connect 8 0 7 0;