Add FS #10214. Initial commit of the original PDa code for the GSoC Pure Data plugin project of Wincent Balin. Stripped some non-sourcefiles and added a rockbox readme that needs a bit more info from Wincent. Is added to CATEGORIES and viewers, but not yet to SUBDIRS (ie doesn't build yet)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21044 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 1282 insertions, 0 deletions

diff --git a/apps/plugins/pdbox/PDa/src/s_midi.c b/apps/plugins/pdbox/PDa/src/s_midi.c
new file mode 100644
index 0000000000..4338b49432
--- /dev/null
+++ b/apps/plugins/pdbox/PDa/src/s_midi.c
@@ -0,0 +1,1282 @@
+/* Copyright (c) 1997-1999 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.  */
+
+/* Clock functions (which should move, but where?) and MIDI queueing */
+
+#include "m_pd.h"
+#include "s_stuff.h"
+#include "m_imp.h"
+#ifdef UNIX
+#include <unistd.h>
+#include <sys/time.h>
+#ifdef HAVE_BSTRING_H
+#include <bstring.h>
+#endif
+#endif
+#ifdef MSW
+#include <winsock.h>
+#include <sys/types.h>
+#include <sys/timeb.h> 
+#include <wtypes.h>
+#endif
+#include <string.h>
+#include <stdio.h>
+#include <signal.h>
+
+typedef struct _midiqelem
+{
+    double q_time;
+    int q_portno;
+    unsigned char q_onebyte;
+    unsigned char q_byte1;
+    unsigned char q_byte2;
+    unsigned char q_byte3;
+} t_midiqelem;
+
+#define MIDIQSIZE 1024
+
+t_midiqelem midi_outqueue[MIDIQSIZE];
+int midi_outhead, midi_outtail;
+t_midiqelem midi_inqueue[MIDIQSIZE];
+int midi_inhead, midi_intail;
+static double sys_midiinittime;
+
+    /* this is our current estimate for at what "system" real time the
+    current logical time's output should occur. */
+static double sys_dactimeminusrealtime;
+    /* same for input, should be schduler advance earlier. */
+static double sys_adctimeminusrealtime;
+
+static double sys_newdactimeminusrealtime = -1e20;
+static double sys_newadctimeminusrealtime = -1e20;
+static double sys_whenupdate;
+
+void sys_initmidiqueue( void)
+{
+    sys_midiinittime = clock_getlogicaltime();
+    sys_dactimeminusrealtime = sys_adctimeminusrealtime = 0;
+}
+
+    /* this is called from the OS dependent code from time to time when we
+    think we know the delay (outbuftime) in seconds, at which the last-output
+    audio sample will go out the door. */
+void sys_setmiditimediff(double inbuftime, double outbuftime)
+{
+    double dactimeminusrealtime =
+        .001 * clock_gettimesince(sys_midiinittime)
+            - outbuftime - sys_getrealtime();
+    double adctimeminusrealtime =
+        .001 * clock_gettimesince(sys_midiinittime)
+            + inbuftime - sys_getrealtime();
+    if (dactimeminusrealtime > sys_newdactimeminusrealtime)
+        sys_newdactimeminusrealtime = dactimeminusrealtime;
+    if (adctimeminusrealtime > sys_newadctimeminusrealtime)
+        sys_newadctimeminusrealtime = adctimeminusrealtime;
+    if (sys_getrealtime() > sys_whenupdate)
+    {
+        sys_dactimeminusrealtime = sys_newdactimeminusrealtime;
+        sys_adctimeminusrealtime = sys_newadctimeminusrealtime;
+        sys_newdactimeminusrealtime = -1e20;
+        sys_newadctimeminusrealtime = -1e20;
+        sys_whenupdate = sys_getrealtime() + 1;
+    }
+}
+
+    /* return the logical time of the DAC sample we believe is currently
+    going out, based on how much "system time" has elapsed since the
+    last time sys_setmiditimediff got called. */
+static double sys_getmidioutrealtime( void)
+{
+    return (sys_getrealtime() + sys_dactimeminusrealtime);
+}
+
+static double sys_getmidiinrealtime( void)
+{
+    return (sys_getrealtime() + sys_adctimeminusrealtime);
+}
+
+static void sys_putnext( void)
+{
+    int portno = midi_outqueue[midi_outtail].q_portno;
+    if (midi_outqueue[midi_outtail].q_onebyte)
+        sys_putmidibyte(portno, midi_outqueue[midi_outtail].q_byte1);
+    else sys_putmidimess(portno, midi_outqueue[midi_outtail].q_byte1,
+            midi_outqueue[midi_outtail].q_byte2,
+                midi_outqueue[midi_outtail].q_byte3);
+    midi_outtail  = (midi_outtail + 1 == MIDIQSIZE ? 0 : midi_outtail + 1);
+}
+
+/*  #define TEST_DEJITTER */
+
+void sys_pollmidioutqueue( void)
+{
+#ifdef TEST_DEJITTER
+    static int db = 0;
+#endif
+    double midirealtime = sys_getmidioutrealtime();
+#ifdef TEST_DEJITTER
+    if (midi_outhead == midi_outtail)
+        db = 0;
+#endif
+    while (midi_outhead != midi_outtail)
+    {
+#ifdef TEST_DEJITTER
+        if (!db)
+        {
+            post("out: del %f, midiRT %f logicaltime %f, RT %f dacminusRT %f",
+                (midi_outqueue[midi_outtail].q_time - midirealtime),
+                    midirealtime, .001 * clock_gettimesince(sys_midiinittime),
+                        sys_getrealtime(), sys_dactimeminusrealtime);
+            db = 1;
+        }
+#endif
+        if (midi_outqueue[midi_outtail].q_time <= midirealtime)
+            sys_putnext();
+        else break;
+    }
+}
+
+static void sys_queuemidimess(int portno, int onebyte, int a, int b, int c)
+{
+    t_midiqelem *midiqelem;
+    int newhead = midi_outhead +1;
+    if (newhead == MIDIQSIZE)
+        newhead = 0;
+            /* if FIFO is full flush an element to make room */
+    if (newhead == midi_outtail)
+        sys_putnext();
+    midi_outqueue[midi_outhead].q_portno = portno;
+    midi_outqueue[midi_outhead].q_onebyte = onebyte;
+    midi_outqueue[midi_outhead].q_byte1 = a;
+    midi_outqueue[midi_outhead].q_byte2 = b;
+    midi_outqueue[midi_outhead].q_byte3 = c;
+    midi_outqueue[midi_outhead].q_time =
+        .001 * clock_gettimesince(sys_midiinittime);
+    midi_outhead = newhead;
+    sys_pollmidioutqueue();
+}
+
+#define MIDI_NOTEON 144
+#define MIDI_POLYAFTERTOUCH 160
+#define MIDI_CONTROLCHANGE 176
+#define MIDI_PROGRAMCHANGE 192
+#define MIDI_AFTERTOUCH 208
+#define MIDI_PITCHBEND 224
+
+void outmidi_noteon(int portno, int channel, int pitch, int velo)
+{
+    if (pitch < 0) pitch = 0;
+    else if (pitch > 127) pitch = 127;
+    if (velo < 0) velo = 0;
+    else if (velo > 127) velo = 127;
+    sys_queuemidimess(portno, 0, MIDI_NOTEON + (channel & 0xf), pitch, velo);
+}
+
+void outmidi_controlchange(int portno, int channel, int ctl, int value)
+{
+    if (ctl < 0) ctl = 0;
+    else if (ctl > 127) ctl = 127;
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0, MIDI_CONTROLCHANGE + (channel & 0xf),
+        ctl, value);
+}
+
+void outmidi_programchange(int portno, int channel, int value)
+{
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0,
+        MIDI_PROGRAMCHANGE + (channel & 0xf), value, 0);
+}
+
+void outmidi_pitchbend(int portno, int channel, int value)
+{
+    if (value < 0) value = 0;
+    else if (value > 16383) value = 16383;
+    sys_queuemidimess(portno, 0, MIDI_PITCHBEND + (channel & 0xf),
+        (value & 127), ((value>>7) & 127));
+}
+
+void outmidi_aftertouch(int portno, int channel, int value)
+{
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0, MIDI_AFTERTOUCH + (channel & 0xf), value, 0);
+}
+
+void outmidi_polyaftertouch(int portno, int channel, int pitch, int value)
+{
+    if (pitch < 0) pitch = 0;
+    else if (pitch > 127) pitch = 127;
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0, MIDI_POLYAFTERTOUCH + (channel & 0xf),
+        pitch, value);
+}
+
+void outmidi_mclk(int portno)
+{
+   sys_queuemidimess(portno, 1, 0xf8, 0,0);
+}
+
+/* ------------------------- MIDI input queue handling ------------------ */
+typedef struct midiparser
+{
+    int mp_status;
+    int mp_gotbyte1;
+    int mp_byte1;
+} t_midiparser;
+
+#define MIDINOTEOFF       0x80  /* 2 following 'data bytes' */
+#define MIDINOTEON        0x90  /* 2 */
+#define MIDIPOLYTOUCH     0xa0  /* 2 */
+#define MIDICONTROLCHANGE 0xb0  /* 2 */
+#define MIDIPROGRAMCHANGE 0xc0  /* 1 */
+#define MIDICHANNELTOUCH  0xd0  /* 1 */
+#define MIDIPITCHBEND     0xe0  /* 2 */
+#define MIDISTARTSYSEX    0xf0  /* (until F7) */
+#define MIDITIMECODE      0xf1  /* 1 */
+#define MIDISONGPOS       0xf2  /* 2 */
+#define MIDISONGSELECT    0xf3  /* 1 */
+#define MIDIRESERVED1     0xf4  /* ? */
+#define MIDIRESERVED2     0xf5  /* ? */
+#define MIDITUNEREQUEST   0xf6  /* 0 */
+#define MIDIENDSYSEX      0xf7  /* 0 */
+#define MIDICLOCK         0xf8  /* 0 */
+#define MIDITICK          0xf9  /* 0 */
+#define MIDISTART         0xfa  /* 0 */
+#define MIDICONT          0xfb  /* 0 */
+#define MIDISTOP          0xfc  /* 0 */
+#define MIDIACTIVESENSE   0xfe  /* 0 */
+#define MIDIRESET         0xff  /* 0 */
+
+    /* functions in x_midi.c */
+void inmidi_realtimein(int portno, int cmd);
+void inmidi_byte(int portno, int byte);
+void inmidi_sysex(int portno, int byte);
+void inmidi_noteon(int portno, int channel, int pitch, int velo);
+void inmidi_controlchange(int portno, int channel, int ctlnumber, int value);
+void inmidi_programchange(int portno, int channel, int value);
+void inmidi_pitchbend(int portno, int channel, int value);
+void inmidi_aftertouch(int portno, int channel, int value);
+void inmidi_polyaftertouch(int portno, int channel, int pitch, int value);
+
+static void sys_dispatchnextmidiin( void)
+{
+    static t_midiparser parser[MAXMIDIINDEV], *parserp;
+    int portno = midi_inqueue[midi_intail].q_portno,
+        byte = midi_inqueue[midi_intail].q_byte1;
+    if (!midi_inqueue[midi_intail].q_onebyte)
+        bug("sys_dispatchnextmidiin");
+    if (portno < 0 || portno >= MAXMIDIINDEV)
+        bug("sys_dispatchnextmidiin 2");
+    parserp = parser + portno;
+    outlet_setstacklim();
+    
+    if (byte >= 0xf8)
+        inmidi_realtimein(portno, byte);
+    else
+    {
+        inmidi_byte(portno, byte);
+        if (byte & 0x80)
+        {
+            if (byte == MIDITUNEREQUEST || byte == MIDIRESERVED1 ||
+                byte == MIDIRESERVED2)
+                    parserp->mp_status = 0;
+            else if (byte == MIDISTARTSYSEX)
+            {
+                inmidi_sysex(portno, byte);
+                parserp->mp_status = byte;
+            }
+            else if (byte == MIDIENDSYSEX)
+            {
+                inmidi_sysex(portno, byte);
+                parserp->mp_status = 0;
+            }
+            else
+            {
+                parserp->mp_status = byte;
+            }
+            parserp->mp_gotbyte1 = 0;
+        }
+        else
+        {
+            int cmd = (parserp->mp_status >= 0xf0 ? parserp->mp_status :
+                (parserp->mp_status & 0xf0));
+            int chan = (parserp->mp_status & 0xf);
+            int byte1 = parserp->mp_byte1, gotbyte1 = parserp->mp_gotbyte1;
+            switch (cmd)
+            {
+            case MIDINOTEOFF:
+                if (gotbyte1)
+                    inmidi_noteon(portno, chan, byte1, 0),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDINOTEON:
+                if (gotbyte1)
+                    inmidi_noteon(portno, chan, byte1, byte),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDIPOLYTOUCH:
+                if (gotbyte1)
+                    inmidi_polyaftertouch(portno, chan, byte1, byte),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDICONTROLCHANGE:
+                if (gotbyte1)
+                    inmidi_controlchange(portno, chan, byte1, byte),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDIPROGRAMCHANGE:
+                inmidi_programchange(portno, chan, byte);
+                break;
+            case MIDICHANNELTOUCH:
+                inmidi_aftertouch(portno, chan, byte);
+                break;
+            case MIDIPITCHBEND:
+                if (gotbyte1)
+                    inmidi_pitchbend(portno, chan, ((byte << 7) + byte1)),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDISTARTSYSEX:
+                inmidi_sysex(portno, byte);
+                break;
+                
+                /* other kinds of messages are just dropped here.  We'll
+                need another status byte before we start letting MIDI in
+                again (no running status across "system" messages). */
+            case MIDITIMECODE:     /* 1 data byte*/
+                break;
+            case MIDISONGPOS:       /* 2 */
+                break;
+            case MIDISONGSELECT:    /* 1 */
+                break;
+            }
+        }
+    }  
+    midi_intail  = (midi_intail + 1 == MIDIQSIZE ? 0 : midi_intail + 1);
+}
+
+void sys_pollmidiinqueue( void)
+{
+#ifdef TEST_DEJITTER
+    static int db = 0;
+#endif
+    double logicaltime = .001 * clock_gettimesince(sys_midiinittime);
+#ifdef TEST_DEJITTER
+    if (midi_inhead == midi_intail)
+        db = 0;
+#endif
+    while (midi_inhead != midi_intail)
+    {
+#ifdef TEST_DEJITTER
+        if (!db)
+        {
+            post("in del %f, logicaltime %f, RT %f adcminusRT %f",
+                (midi_inqueue[midi_intail].q_time - logicaltime),
+                    logicaltime, sys_getrealtime(), sys_adctimeminusrealtime);
+            db = 1;
+        }
+#endif
+#if 0
+        if (midi_inqueue[midi_intail].q_time <= logicaltime - 0.007)
+            post("late %f",
+                1000 * (logicaltime - midi_inqueue[midi_intail].q_time));
+#endif
+        if (midi_inqueue[midi_intail].q_time <= logicaltime)
+        {
+#if 0
+            post("diff %f",
+                1000* (logicaltime - midi_inqueue[midi_intail].q_time));
+#endif
+            sys_dispatchnextmidiin();
+        }
+        else break;
+    }
+}
+
+    /* this should be called from the system dependent MIDI code when a byte
+    comes in, as a result of our calling sys_poll_midi.  We stick it on a
+    timetag queue and dispatch it at the appropriate logical time. */
+
+
+void sys_midibytein(int portno, int byte)
+{
+    static int warned = 0;
+    t_midiqelem *midiqelem;
+    int newhead = midi_inhead +1;
+    if (newhead == MIDIQSIZE)
+        newhead = 0;
+            /* if FIFO is full flush an element to make room */
+    if (newhead == midi_intail)
+    {
+        if (!warned)
+        {
+            post("warning: MIDI timing FIFO overflowed");
+            warned = 1;
+        }
+        sys_dispatchnextmidiin();
+    }
+    midi_inqueue[midi_inhead].q_portno = portno;
+    midi_inqueue[midi_inhead].q_onebyte = 1;
+    midi_inqueue[midi_inhead].q_byte1 = byte;
+    midi_inqueue[midi_inhead].q_time = sys_getmidiinrealtime();
+    midi_inhead = newhead;
+    sys_pollmidiinqueue();
+}
+
+void sys_pollmidiqueue( void)
+{
+#if 0
+    static double lasttime;
+    double newtime = sys_getrealtime();
+    if (newtime - lasttime > 0.007)
+        post("delay %d", (int)(1000 * (newtime - lasttime)));
+    lasttime = newtime;
+#endif
+    sys_poll_midi();    /* OS dependent poll for MIDI input */
+    sys_pollmidioutqueue();
+    sys_pollmidiinqueue();
+}
+
+/******************** dialog window and device listing ********************/
+
+#ifdef USEAPI_OSS
+void midi_oss_init( void);
+#endif
+
+    /* last requested parameters */
+static int midi_nmidiindev;
+static int midi_midiindev[MAXMIDIINDEV];
+static int midi_nmidioutdev;
+static int midi_midioutdev[MAXMIDIOUTDEV];
+
+static void sys_get_midi_params(int *pnmidiindev, int *pmidiindev,
+    int *pnmidioutdev, int *pmidioutdev)
+{
+    int i;
+    *pnmidiindev = midi_nmidiindev;
+    for (i = 0; i < MAXMIDIINDEV; i++)
+        pmidiindev[i] = midi_midiindev[i]; 
+    *pnmidioutdev = midi_nmidioutdev;
+    for (i = 0; i < MAXMIDIOUTDEV; i++)
+        pmidioutdev[i] = midi_midioutdev[i]; 
+}
+
+static void sys_save_midi_params(
+    int nmidiindev, int *midiindev,
+    int nmidioutdev, int *midioutdev)
+{
+    int i;
+    midi_nmidiindev = nmidiindev;
+    for (i = 0; i < MAXMIDIINDEV; i++)
+        midi_midiindev[i] = midiindev[i]; 
+    midi_nmidioutdev = nmidioutdev;
+    for (i = 0; i < MAXMIDIOUTDEV; i++)
+        midi_midioutdev[i] = midioutdev[i]; 
+}
+
+void sys_open_midi(int nmidiindev, int *midiindev,
+    int nmidioutdev, int *midioutdev)
+{
+#ifdef USEAPI_OSS
+    midi_oss_init();
+#endif
+    sys_do_open_midi(nmidiindev, midiindev, nmidioutdev, midioutdev);
+    sys_save_midi_params(nmidiindev, midiindev,
+        nmidioutdev, midioutdev);
+}
+
+    /* open midi using whatever parameters were last used */
+void sys_reopen_midi( void)
+{
+    int nmidiindev, midiindev[MAXMIDIINDEV];
+    int nmidioutdev, midioutdev[MAXMIDIOUTDEV];
+    sys_get_midi_params(&nmidiindev, midiindev, &nmidioutdev, midioutdev);
+    sys_open_midi(nmidiindev, midiindev, nmidioutdev, midioutdev);
+}
+
+#define MAXNDEV 20
+#define DEVDESCSIZE 80
+
+#ifdef MSW
+#define DEVONSET 0  /* microsoft device list starts at 0 (the "mapper"). */
+#else               /* (see also MSW ifdef in sys_parsedevlist(), s_main.c)  */
+#define DEVONSET 1  /* To agree with command line flags, normally start at 1 */
+#endif
+
+void sys_listmididevs(void )
+{
+    char indevlist[MAXNDEV*DEVDESCSIZE], outdevlist[MAXNDEV*DEVDESCSIZE];
+    int nindevs = 0, noutdevs = 0, i;
+
+    midi_getdevs(indevlist, &nindevs, outdevlist, &noutdevs,
+        MAXNDEV, DEVDESCSIZE);
+
+    if (!nindevs)
+        post("no midi input devices found");
+    else
+    {
+        post("input devices:");
+        for (i = 0; i < nindevs; i++)
+            post("%d. %s", i+1, indevlist + i * DEVDESCSIZE);
+    }
+    if (!noutdevs)
+        post("no midi output devices found");
+    else
+    {
+        post("output devices:");
+        for (i = 0; i < noutdevs; i++)
+            post("%d. %s", i+DEVONSET, outdevlist + i * DEVDESCSIZE);
+    }
+}
+
+extern t_class *glob_pdobject;
+
+    /* start an midi settings dialog window */
+void glob_midi_properties(t_pd *dummy, t_floatarg flongform)
+{
+    char buf[1024 + 2 * MAXNDEV*(DEVDESCSIZE+4)];
+        /* these are the devices you're using: */
+    int nindev, midiindev[MAXMIDIINDEV];
+    int noutdev, midioutdev[MAXMIDIOUTDEV];
+    int midiindev1, midiindev2, midiindev3, midiindev4,
+        midioutdev1, midioutdev2, midioutdev3, midioutdev4;
+
+        /* these are all the devices on your system: */
+    char indevlist[MAXNDEV*DEVDESCSIZE], outdevlist[MAXNDEV*DEVDESCSIZE];
+    int nindevs = 0, noutdevs = 0, i;
+
+    char indevliststring[MAXNDEV*(DEVDESCSIZE+4)+80],
+        outdevliststring[MAXNDEV*(DEVDESCSIZE+4)+80];
+
+    midi_getdevs(indevlist, &nindevs, outdevlist, &noutdevs,
+        MAXNDEV, DEVDESCSIZE);
+
+    strcpy(indevliststring, "{ {none} ");
+    for (i = 0; i < nindevs; i++)
+    {
+        strcat(indevliststring, "\"");
+        strcat(indevliststring, indevlist + i * DEVDESCSIZE);
+        strcat(indevliststring, "\" ");
+    }
+    strcat(indevliststring, "}");
+
+    strcpy(outdevliststring, "{ {none} ");
+    for (i = 0; i < noutdevs; i++)
+    {
+        strcat(outdevliststring, "\"");
+        strcat(outdevliststring, outdevlist + i * DEVDESCSIZE);
+        strcat(outdevliststring, "\" ");
+    }
+    strcat(outdevliststring, "}");
+
+    sys_get_midi_params(&nindev, midiindev, &noutdev, midioutdev);
+
+    if (nindev > 1 || noutdev > 1)
+        flongform = 1;
+
+    midiindev1 = (nindev > 0 &&  midiindev[0]>= 0 ? midiindev[0]+1 : 0);
+    midiindev2 = (nindev > 1 &&  midiindev[1]>= 0 ? midiindev[1]+1 : 0);
+    midiindev3 = (nindev > 2 &&  midiindev[2]>= 0 ? midiindev[2]+1 : 0);
+    midiindev4 = (nindev > 3 &&  midiindev[3]>= 0 ? midiindev[3]+1 : 0);
+    midioutdev1 = (noutdev > 0 && midioutdev[0]>=0 ? midioutdev[0]+1 : 0);  
+    midioutdev2 = (noutdev > 1 && midioutdev[1]>=0 ? midioutdev[1]+1 : 0);  
+    midioutdev3 = (noutdev > 2 && midioutdev[2]>=0 ? midioutdev[2]+1 : 0);  
+    midioutdev4 = (noutdev > 3 && midioutdev[3]>=0 ? midioutdev[3]+1 : 0);  
+
+    sprintf(buf,
+"pdtk_midi_dialog %%s \
+%s %d %d %d %d %s %d %d %d %d \
+%d\n",
+        indevliststring,
+        midiindev1, midiindev2, midiindev3, midiindev4, 
+        outdevliststring,
+        midioutdev1, midioutdev2, midioutdev3, midioutdev4,
+        (flongform != 0));
+    gfxstub_deleteforkey(0);
+    gfxstub_new(&glob_pdobject, glob_midi_properties, buf);
+}
+
+    /* new values from dialog window */
+void glob_midi_dialog(t_pd *dummy, t_symbol *s, int argc, t_atom *argv)
+{
+    int nmidiindev, midiindev[MAXMIDIINDEV];
+    int nmidioutdev, midioutdev[MAXMIDIOUTDEV];
+    int i, nindev, noutdev;
+    int newmidiindev[4], newmidioutdev[4];
+
+    for (i = 0; i < 4; i++)
+    {
+        newmidiindev[i] = atom_getintarg(i, argc, argv);
+        newmidioutdev[i] = atom_getintarg(i+4, argc, argv);
+    }
+
+    for (i = 0, nindev = 0; i < 4; i++)
+    {
+        if (newmidiindev[i] > 0)
+        {
+            newmidiindev[nindev] = newmidiindev[i]-1;
+            nindev++;
+        }
+    }
+    for (i = 0, noutdev = 0; i < 4; i++)
+    {
+        if (newmidioutdev[i] > 0)
+        {
+            newmidioutdev[noutdev] = newmidioutdev[i]-1;
+            noutdev++;
+        }
+    }
+
+    sys_close_midi();
+    sys_open_midi(nindev, newmidiindev, noutdev, newmidioutdev);
+}
+/* Copyright (c) 1997-1999 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.  */
+
+/* Clock functions (which should move, but where?) and MIDI queueing */
+
+#include "m_pd.h"
+#include "s_stuff.h"
+#include "m_imp.h"
+#ifdef UNIX
+#include <unistd.h>
+#include <sys/time.h>
+#ifdef HAVE_BSTRING_H
+#include <bstring.h>
+#endif
+#endif
+#ifdef MSW
+#include <winsock.h>
+#include <sys/types.h>
+#include <sys/timeb.h> 
+#include <wtypes.h>
+#endif
+#include <string.h>
+#include <stdio.h>
+#include <signal.h>
+
+typedef struct _midiqelem
+{
+    double q_time;
+    int q_portno;
+    unsigned char q_onebyte;
+    unsigned char q_byte1;
+    unsigned char q_byte2;
+    unsigned char q_byte3;
+} t_midiqelem;
+
+#define MIDIQSIZE 1024
+
+t_midiqelem midi_outqueue[MIDIQSIZE];
+int midi_outhead, midi_outtail;
+t_midiqelem midi_inqueue[MIDIQSIZE];
+int midi_inhead, midi_intail;
+static double sys_midiinittime;
+
+    /* this is our current estimate for at what "system" real time the
+    current logical time's output should occur. */
+static double sys_dactimeminusrealtime;
+    /* same for input, should be schduler advance earlier. */
+static double sys_adctimeminusrealtime;
+
+static double sys_newdactimeminusrealtime = -1e20;
+static double sys_newadctimeminusrealtime = -1e20;
+static double sys_whenupdate;
+
+void sys_initmidiqueue( void)
+{
+    sys_midiinittime = clock_getlogicaltime();
+    sys_dactimeminusrealtime = sys_adctimeminusrealtime = 0;
+}
+
+    /* this is called from the OS dependent code from time to time when we
+    think we know the delay (outbuftime) in seconds, at which the last-output
+    audio sample will go out the door. */
+void sys_setmiditimediff(double inbuftime, double outbuftime)
+{
+    double dactimeminusrealtime =
+        .001 * clock_gettimesince(sys_midiinittime)
+            - outbuftime - sys_getrealtime();
+    double adctimeminusrealtime =
+        .001 * clock_gettimesince(sys_midiinittime)
+            + inbuftime - sys_getrealtime();
+    if (dactimeminusrealtime > sys_newdactimeminusrealtime)
+        sys_newdactimeminusrealtime = dactimeminusrealtime;
+    if (adctimeminusrealtime > sys_newadctimeminusrealtime)
+        sys_newadctimeminusrealtime = adctimeminusrealtime;
+    if (sys_getrealtime() > sys_whenupdate)
+    {
+        sys_dactimeminusrealtime = sys_newdactimeminusrealtime;
+        sys_adctimeminusrealtime = sys_newadctimeminusrealtime;
+        sys_newdactimeminusrealtime = -1e20;
+        sys_newadctimeminusrealtime = -1e20;
+        sys_whenupdate = sys_getrealtime() + 1;
+    }
+}
+
+    /* return the logical time of the DAC sample we believe is currently
+    going out, based on how much "system time" has elapsed since the
+    last time sys_setmiditimediff got called. */
+static double sys_getmidioutrealtime( void)
+{
+    return (sys_getrealtime() + sys_dactimeminusrealtime);
+}
+
+static double sys_getmidiinrealtime( void)
+{
+    return (sys_getrealtime() + sys_adctimeminusrealtime);
+}
+
+static void sys_putnext( void)
+{
+    int portno = midi_outqueue[midi_outtail].q_portno;
+    if (midi_outqueue[midi_outtail].q_onebyte)
+        sys_putmidibyte(portno, midi_outqueue[midi_outtail].q_byte1);
+    else sys_putmidimess(portno, midi_outqueue[midi_outtail].q_byte1,
+            midi_outqueue[midi_outtail].q_byte2,
+                midi_outqueue[midi_outtail].q_byte3);
+    midi_outtail  = (midi_outtail + 1 == MIDIQSIZE ? 0 : midi_outtail + 1);
+}
+
+/*  #define TEST_DEJITTER */
+
+void sys_pollmidioutqueue( void)
+{
+#ifdef TEST_DEJITTER
+    static int db = 0;
+#endif
+    double midirealtime = sys_getmidioutrealtime();
+#ifdef TEST_DEJITTER
+    if (midi_outhead == midi_outtail)
+        db = 0;
+#endif
+    while (midi_outhead != midi_outtail)
+    {
+#ifdef TEST_DEJITTER
+        if (!db)
+        {
+            post("out: del %f, midiRT %f logicaltime %f, RT %f dacminusRT %f",
+                (midi_outqueue[midi_outtail].q_time - midirealtime),
+                    midirealtime, .001 * clock_gettimesince(sys_midiinittime),
+                        sys_getrealtime(), sys_dactimeminusrealtime);
+            db = 1;
+        }
+#endif
+        if (midi_outqueue[midi_outtail].q_time <= midirealtime)
+            sys_putnext();
+        else break;
+    }
+}
+
+static void sys_queuemidimess(int portno, int onebyte, int a, int b, int c)
+{
+    t_midiqelem *midiqelem;
+    int newhead = midi_outhead +1;
+    if (newhead == MIDIQSIZE)
+        newhead = 0;
+            /* if FIFO is full flush an element to make room */
+    if (newhead == midi_outtail)
+        sys_putnext();
+    midi_outqueue[midi_outhead].q_portno = portno;
+    midi_outqueue[midi_outhead].q_onebyte = onebyte;
+    midi_outqueue[midi_outhead].q_byte1 = a;
+    midi_outqueue[midi_outhead].q_byte2 = b;
+    midi_outqueue[midi_outhead].q_byte3 = c;
+    midi_outqueue[midi_outhead].q_time =
+        .001 * clock_gettimesince(sys_midiinittime);
+    midi_outhead = newhead;
+    sys_pollmidioutqueue();
+}
+
+#define MIDI_NOTEON 144
+#define MIDI_POLYAFTERTOUCH 160
+#define MIDI_CONTROLCHANGE 176
+#define MIDI_PROGRAMCHANGE 192
+#define MIDI_AFTERTOUCH 208
+#define MIDI_PITCHBEND 224
+
+void outmidi_noteon(int portno, int channel, int pitch, int velo)
+{
+    if (pitch < 0) pitch = 0;
+    else if (pitch > 127) pitch = 127;
+    if (velo < 0) velo = 0;
+    else if (velo > 127) velo = 127;
+    sys_queuemidimess(portno, 0, MIDI_NOTEON + (channel & 0xf), pitch, velo);
+}
+
+void outmidi_controlchange(int portno, int channel, int ctl, int value)
+{
+    if (ctl < 0) ctl = 0;
+    else if (ctl > 127) ctl = 127;
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0, MIDI_CONTROLCHANGE + (channel & 0xf),
+        ctl, value);
+}
+
+void outmidi_programchange(int portno, int channel, int value)
+{
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0,
+        MIDI_PROGRAMCHANGE + (channel & 0xf), value, 0);
+}
+
+void outmidi_pitchbend(int portno, int channel, int value)
+{
+    if (value < 0) value = 0;
+    else if (value > 16383) value = 16383;
+    sys_queuemidimess(portno, 0, MIDI_PITCHBEND + (channel & 0xf),
+        (value & 127), ((value>>7) & 127));
+}
+
+void outmidi_aftertouch(int portno, int channel, int value)
+{
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0, MIDI_AFTERTOUCH + (channel & 0xf), value, 0);
+}
+
+void outmidi_polyaftertouch(int portno, int channel, int pitch, int value)
+{
+    if (pitch < 0) pitch = 0;
+    else if (pitch > 127) pitch = 127;
+    if (value < 0) value = 0;
+    else if (value > 127) value = 127;
+    sys_queuemidimess(portno, 0, MIDI_POLYAFTERTOUCH + (channel & 0xf),
+        pitch, value);
+}
+
+void outmidi_mclk(int portno)
+{
+   sys_queuemidimess(portno, 1, 0xf8, 0,0);
+}
+
+/* ------------------------- MIDI input queue handling ------------------ */
+typedef struct midiparser
+{
+    int mp_status;
+    int mp_gotbyte1;
+    int mp_byte1;
+} t_midiparser;
+
+#define MIDINOTEOFF       0x80  /* 2 following 'data bytes' */
+#define MIDINOTEON        0x90  /* 2 */
+#define MIDIPOLYTOUCH     0xa0  /* 2 */
+#define MIDICONTROLCHANGE 0xb0  /* 2 */
+#define MIDIPROGRAMCHANGE 0xc0  /* 1 */
+#define MIDICHANNELTOUCH  0xd0  /* 1 */
+#define MIDIPITCHBEND     0xe0  /* 2 */
+#define MIDISTARTSYSEX    0xf0  /* (until F7) */
+#define MIDITIMECODE      0xf1  /* 1 */
+#define MIDISONGPOS       0xf2  /* 2 */
+#define MIDISONGSELECT    0xf3  /* 1 */
+#define MIDIRESERVED1     0xf4  /* ? */
+#define MIDIRESERVED2     0xf5  /* ? */
+#define MIDITUNEREQUEST   0xf6  /* 0 */
+#define MIDIENDSYSEX      0xf7  /* 0 */
+#define MIDICLOCK         0xf8  /* 0 */
+#define MIDITICK          0xf9  /* 0 */
+#define MIDISTART         0xfa  /* 0 */
+#define MIDICONT          0xfb  /* 0 */
+#define MIDISTOP          0xfc  /* 0 */
+#define MIDIACTIVESENSE   0xfe  /* 0 */
+#define MIDIRESET         0xff  /* 0 */
+
+    /* functions in x_midi.c */
+void inmidi_realtimein(int portno, int cmd);
+void inmidi_byte(int portno, int byte);
+void inmidi_sysex(int portno, int byte);
+void inmidi_noteon(int portno, int channel, int pitch, int velo);
+void inmidi_controlchange(int portno, int channel, int ctlnumber, int value);
+void inmidi_programchange(int portno, int channel, int value);
+void inmidi_pitchbend(int portno, int channel, int value);
+void inmidi_aftertouch(int portno, int channel, int value);
+void inmidi_polyaftertouch(int portno, int channel, int pitch, int value);
+
+static void sys_dispatchnextmidiin( void)
+{
+    static t_midiparser parser[MAXMIDIINDEV], *parserp;
+    int portno = midi_inqueue[midi_intail].q_portno,
+        byte = midi_inqueue[midi_intail].q_byte1;
+    if (!midi_inqueue[midi_intail].q_onebyte)
+        bug("sys_dispatchnextmidiin");
+    if (portno < 0 || portno >= MAXMIDIINDEV)
+        bug("sys_dispatchnextmidiin 2");
+    parserp = parser + portno;
+    outlet_setstacklim();
+    
+    if (byte >= 0xf8)
+        inmidi_realtimein(portno, byte);
+    else
+    {
+        inmidi_byte(portno, byte);
+        if (byte & 0x80)
+        {
+            if (byte == MIDITUNEREQUEST || byte == MIDIRESERVED1 ||
+                byte == MIDIRESERVED2)
+                    parserp->mp_status = 0;
+            else if (byte == MIDISTARTSYSEX)
+            {
+                inmidi_sysex(portno, byte);
+                parserp->mp_status = byte;
+            }
+            else if (byte == MIDIENDSYSEX)
+            {
+                inmidi_sysex(portno, byte);
+                parserp->mp_status = 0;
+            }
+            else
+            {
+                parserp->mp_status = byte;
+            }
+            parserp->mp_gotbyte1 = 0;
+        }
+        else
+        {
+            int cmd = (parserp->mp_status >= 0xf0 ? parserp->mp_status :
+                (parserp->mp_status & 0xf0));
+            int chan = (parserp->mp_status & 0xf);
+            int byte1 = parserp->mp_byte1, gotbyte1 = parserp->mp_gotbyte1;
+            switch (cmd)
+            {
+            case MIDINOTEOFF:
+                if (gotbyte1)
+                    inmidi_noteon(portno, chan, byte1, 0),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDINOTEON:
+                if (gotbyte1)
+                    inmidi_noteon(portno, chan, byte1, byte),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDIPOLYTOUCH:
+                if (gotbyte1)
+                    inmidi_polyaftertouch(portno, chan, byte1, byte),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDICONTROLCHANGE:
+                if (gotbyte1)
+                    inmidi_controlchange(portno, chan, byte1, byte),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDIPROGRAMCHANGE:
+                inmidi_programchange(portno, chan, byte);
+                break;
+            case MIDICHANNELTOUCH:
+                inmidi_aftertouch(portno, chan, byte);
+                break;
+            case MIDIPITCHBEND:
+                if (gotbyte1)
+                    inmidi_pitchbend(portno, chan, ((byte << 7) + byte1)),
+                        parserp->mp_gotbyte1 = 0;
+                else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1;
+                break;
+            case MIDISTARTSYSEX:
+                inmidi_sysex(portno, byte);
+                break;
+                
+                /* other kinds of messages are just dropped here.  We'll
+                need another status byte before we start letting MIDI in
+                again (no running status across "system" messages). */
+            case MIDITIMECODE:     /* 1 data byte*/
+                break;
+            case MIDISONGPOS:       /* 2 */
+                break;
+            case MIDISONGSELECT:    /* 1 */
+                break;
+            }
+        }
+    }  
+    midi_intail  = (midi_intail + 1 == MIDIQSIZE ? 0 : midi_intail + 1);
+}
+
+void sys_pollmidiinqueue( void)
+{
+#ifdef TEST_DEJITTER
+    static int db = 0;
+#endif
+    double logicaltime = .001 * clock_gettimesince(sys_midiinittime);
+#ifdef TEST_DEJITTER
+    if (midi_inhead == midi_intail)
+        db = 0;
+#endif
+    while (midi_inhead != midi_intail)
+    {
+#ifdef TEST_DEJITTER
+        if (!db)
+        {
+            post("in del %f, logicaltime %f, RT %f adcminusRT %f",
+                (midi_inqueue[midi_intail].q_time - logicaltime),
+                    logicaltime, sys_getrealtime(), sys_adctimeminusrealtime);
+            db = 1;
+        }
+#endif
+#if 0
+        if (midi_inqueue[midi_intail].q_time <= logicaltime - 0.007)
+            post("late %f",
+                1000 * (logicaltime - midi_inqueue[midi_intail].q_time));
+#endif
+        if (midi_inqueue[midi_intail].q_time <= logicaltime)
+        {
+#if 0
+            post("diff %f",
+                1000* (logicaltime - midi_inqueue[midi_intail].q_time));
+#endif
+            sys_dispatchnextmidiin();
+        }
+        else break;
+    }
+}
+
+    /* this should be called from the system dependent MIDI code when a byte
+    comes in, as a result of our calling sys_poll_midi.  We stick it on a
+    timetag queue and dispatch it at the appropriate logical time. */
+
+
+void sys_midibytein(int portno, int byte)
+{
+    static int warned = 0;
+    t_midiqelem *midiqelem;
+    int newhead = midi_inhead +1;
+    if (newhead == MIDIQSIZE)
+        newhead = 0;
+            /* if FIFO is full flush an element to make room */
+    if (newhead == midi_intail)
+    {
+        if (!warned)
+        {
+            post("warning: MIDI timing FIFO overflowed");
+            warned = 1;
+        }
+        sys_dispatchnextmidiin();
+    }
+    midi_inqueue[midi_inhead].q_portno = portno;
+    midi_inqueue[midi_inhead].q_onebyte = 1;
+    midi_inqueue[midi_inhead].q_byte1 = byte;
+    midi_inqueue[midi_inhead].q_time = sys_getmidiinrealtime();
+    midi_inhead = newhead;
+    sys_pollmidiinqueue();
+}
+
+void sys_pollmidiqueue( void)
+{
+#if 0
+    static double lasttime;
+    double newtime = sys_getrealtime();
+    if (newtime - lasttime > 0.007)
+        post("delay %d", (int)(1000 * (newtime - lasttime)));
+    lasttime = newtime;
+#endif
+    sys_poll_midi();    /* OS dependent poll for MIDI input */
+    sys_pollmidioutqueue();
+    sys_pollmidiinqueue();
+}
+
+/******************** dialog window and device listing ********************/
+
+#ifdef USEAPI_OSS
+void midi_oss_init( void);
+#endif
+
+    /* last requested parameters */
+static int midi_nmidiindev;
+static int midi_midiindev[MAXMIDIINDEV];
+static int midi_nmidioutdev;
+static int midi_midioutdev[MAXMIDIOUTDEV];
+
+static void sys_get_midi_params(int *pnmidiindev, int *pmidiindev,
+    int *pnmidioutdev, int *pmidioutdev)
+{
+    int i;
+    *pnmidiindev = midi_nmidiindev;
+    for (i = 0; i < MAXMIDIINDEV; i++)
+        pmidiindev[i] = midi_midiindev[i]; 
+    *pnmidioutdev = midi_nmidioutdev;
+    for (i = 0; i < MAXMIDIOUTDEV; i++)
+        pmidioutdev[i] = midi_midioutdev[i]; 
+}
+
+static void sys_save_midi_params(
+    int nmidiindev, int *midiindev,
+    int nmidioutdev, int *midioutdev)
+{
+    int i;
+    midi_nmidiindev = nmidiindev;
+    for (i = 0; i < MAXMIDIINDEV; i++)
+        midi_midiindev[i] = midiindev[i]; 
+    midi_nmidioutdev = nmidioutdev;
+    for (i = 0; i < MAXMIDIOUTDEV; i++)
+        midi_midioutdev[i] = midioutdev[i]; 
+}
+
+void sys_open_midi(int nmidiindev, int *midiindev,
+    int nmidioutdev, int *midioutdev)
+{
+#ifdef USEAPI_OSS
+    midi_oss_init();
+#endif
+    sys_do_open_midi(nmidiindev, midiindev, nmidioutdev, midioutdev);
+    sys_save_midi_params(nmidiindev, midiindev,
+        nmidioutdev, midioutdev);
+}
+
+    /* open midi using whatever parameters were last used */
+void sys_reopen_midi( void)
+{
+    int nmidiindev, midiindev[MAXMIDIINDEV];
+    int nmidioutdev, midioutdev[MAXMIDIOUTDEV];
+    sys_get_midi_params(&nmidiindev, midiindev, &nmidioutdev, midioutdev);
+    sys_open_midi(nmidiindev, midiindev, nmidioutdev, midioutdev);
+}
+
+#define MAXNDEV 20
+#define DEVDESCSIZE 80
+
+#ifdef MSW
+#define DEVONSET 0  /* microsoft device list starts at 0 (the "mapper"). */
+#else               /* (see also MSW ifdef in sys_parsedevlist(), s_main.c)  */
+#define DEVONSET 1  /* To agree with command line flags, normally start at 1 */
+#endif
+
+void sys_listmididevs(void )
+{
+    char indevlist[MAXNDEV*DEVDESCSIZE], outdevlist[MAXNDEV*DEVDESCSIZE];
+    int nindevs = 0, noutdevs = 0, i;
+
+    midi_getdevs(indevlist, &nindevs, outdevlist, &noutdevs,
+        MAXNDEV, DEVDESCSIZE);
+
+    if (!nindevs)
+        post("no midi input devices found");
+    else
+    {
+        post("input devices:");
+        for (i = 0; i < nindevs; i++)
+            post("%d. %s", i+1, indevlist + i * DEVDESCSIZE);
+    }
+    if (!noutdevs)
+        post("no midi output devices found");
+    else
+    {
+        post("output devices:");
+        for (i = 0; i < noutdevs; i++)
+            post("%d. %s", i+DEVONSET, outdevlist + i * DEVDESCSIZE);
+    }
+}
+
+extern t_class *glob_pdobject;
+
+    /* start an midi settings dialog window */
+void glob_midi_properties(t_pd *dummy, t_floatarg flongform)
+{
+    char buf[1024 + 2 * MAXNDEV*(DEVDESCSIZE+4)];
+        /* these are the devices you're using: */
+    int nindev, midiindev[MAXMIDIINDEV];
+    int noutdev, midioutdev[MAXMIDIOUTDEV];
+    int midiindev1, midiindev2, midiindev3, midiindev4,
+        midioutdev1, midioutdev2, midioutdev3, midioutdev4;
+
+        /* these are all the devices on your system: */
+    char indevlist[MAXNDEV*DEVDESCSIZE], outdevlist[MAXNDEV*DEVDESCSIZE];
+    int nindevs = 0, noutdevs = 0, i;
+
+    char indevliststring[MAXNDEV*(DEVDESCSIZE+4)+80],
+        outdevliststring[MAXNDEV*(DEVDESCSIZE+4)+80];
+
+    midi_getdevs(indevlist, &nindevs, outdevlist, &noutdevs,
+        MAXNDEV, DEVDESCSIZE);
+
+    strcpy(indevliststring, "{ {none} ");
+    for (i = 0; i < nindevs; i++)
+    {
+        strcat(indevliststring, "\"");
+        strcat(indevliststring, indevlist + i * DEVDESCSIZE);
+        strcat(indevliststring, "\" ");
+    }
+    strcat(indevliststring, "}");
+
+    strcpy(outdevliststring, "{ {none} ");
+    for (i = 0; i < noutdevs; i++)
+    {
+        strcat(outdevliststring, "\"");
+        strcat(outdevliststring, outdevlist + i * DEVDESCSIZE);
+        strcat(outdevliststring, "\" ");
+    }
+    strcat(outdevliststring, "}");
+
+    sys_get_midi_params(&nindev, midiindev, &noutdev, midioutdev);
+
+    if (nindev > 1 || noutdev > 1)
+        flongform = 1;
+
+    midiindev1 = (nindev > 0 &&  midiindev[0]>= 0 ? midiindev[0]+1 : 0);
+    midiindev2 = (nindev > 1 &&  midiindev[1]>= 0 ? midiindev[1]+1 : 0);
+    midiindev3 = (nindev > 2 &&  midiindev[2]>= 0 ? midiindev[2]+1 : 0);
+    midiindev4 = (nindev > 3 &&  midiindev[3]>= 0 ? midiindev[3]+1 : 0);
+    midioutdev1 = (noutdev > 0 && midioutdev[0]>=0 ? midioutdev[0]+1 : 0);  
+    midioutdev2 = (noutdev > 1 && midioutdev[1]>=0 ? midioutdev[1]+1 : 0);  
+    midioutdev3 = (noutdev > 2 && midioutdev[2]>=0 ? midioutdev[2]+1 : 0);  
+    midioutdev4 = (noutdev > 3 && midioutdev[3]>=0 ? midioutdev[3]+1 : 0);  
+
+    sprintf(buf,
+"pdtk_midi_dialog %%s \
+%s %d %d %d %d %s %d %d %d %d \
+%d\n",
+        indevliststring,
+        midiindev1, midiindev2, midiindev3, midiindev4, 
+        outdevliststring,
+        midioutdev1, midioutdev2, midioutdev3, midioutdev4,
+        (flongform != 0));
+    gfxstub_deleteforkey(0);
+    gfxstub_new(&glob_pdobject, glob_midi_properties, buf);
+}
+
+    /* new values from dialog window */
+void glob_midi_dialog(t_pd *dummy, t_symbol *s, int argc, t_atom *argv)
+{
+    int nmidiindev, midiindev[MAXMIDIINDEV];
+    int nmidioutdev, midioutdev[MAXMIDIOUTDEV];
+    int i, nindev, noutdev;
+    int newmidiindev[4], newmidioutdev[4];
+
+    for (i = 0; i < 4; i++)
+    {
+        newmidiindev[i] = atom_getintarg(i, argc, argv);
+        newmidioutdev[i] = atom_getintarg(i+4, argc, argv);
+    }
+
+    for (i = 0, nindev = 0; i < 4; i++)
+    {
+        if (newmidiindev[i] > 0)
+        {
+            newmidiindev[nindev] = newmidiindev[i]-1;
+            nindev++;
+        }
+    }
+    for (i = 0, noutdev = 0; i < 4; i++)
+    {
+        if (newmidioutdev[i] > 0)
+        {
+            newmidioutdev[noutdev] = newmidioutdev[i]-1;
+            noutdev++;
+        }
+    }
+
+    sys_close_midi();
+    sys_open_midi(nindev, newmidiindev, noutdev, newmidioutdev);
+}