checking in pdp 0.12.4 from http://zwizwa.fartit.com/pd/pdp/pdp-0.12.4.tar.gz

svn path=/trunk/externals/pdp/; revision=4232

15 files changed, 2618 insertions, 0 deletions

diff --git a/modules/generic/Makefile b/modules/generic/Makefile
new file mode 100644
index 0000000..035f970
--- /dev/null
+++ b/modules/generic/Makefile
@@ -0,0 +1,15 @@
+current: all_modules
+
+include ../../Makefile.config
+
+PDP_MOD = pdp_reg.o pdp_del.o pdp_snap.o pdp_trigger.o \
+	pdp_route.o pdp_inspect.o pdp_loop.o pdp_description.o pdp_convert.o \
+	pdp_udp_send.o pdp_udp_receive.o pdp_rawin.o pdp_rawout.o
+
+# build generic modules
+all_modules: $(PDP_MOD)
+
+clean:
+	rm -f *~
+	rm -f *.o
+
diff --git a/modules/generic/README b/modules/generic/README
new file mode 100644
index 0000000..2c8bff0
--- /dev/null
+++ b/modules/generic/README
@@ -0,0 +1,2 @@
+This directory contains generic packet processors (i.e. containers).
+Should work with any packet type.
diff --git a/modules/generic/pdp_convert.c b/modules/generic/pdp_convert.c
new file mode 100644
index 0000000..cc7dd8c
--- /dev/null
+++ b/modules/generic/pdp_convert.c
@@ -0,0 +1,104 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+
+
+typedef struct pdp_convert_struct
+{
+    t_object x_obj;
+    t_symbol *x_type_mask;
+    t_outlet *x_outlet0;
+    int x_packet0;
+
+} t_pdp_convert;
+
+
+
+static void pdp_convert_type_mask(t_pdp_convert *x, t_symbol *s)
+{
+    x->x_type_mask = s;
+}
+
+static void pdp_convert_input_0(t_pdp_convert *x, t_symbol *s, t_floatarg f)
+{
+    int p = (int)f;
+    int passes, i;
+
+    if (s== gensym("register_ro")){
+	pdp_packet_mark_unused(x->x_packet0);
+	if (x->x_type_mask->s_name[0])
+	    x->x_packet0 = pdp_packet_convert_ro(p, pdp_gensym(x->x_type_mask->s_name));
+	else
+	    x->x_packet0 = pdp_packet_copy_ro(p);
+    }
+
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0)){
+	pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
+    }
+}
+
+
+t_class *pdp_convert_class;
+
+
+
+void pdp_convert_free(t_pdp_convert *x)
+{
+    pdp_packet_mark_unused(x->x_packet0);
+}
+
+void *pdp_convert_new(t_symbol *s)
+{
+    t_pdp_convert *x = (t_pdp_convert *)pd_new(pdp_convert_class);
+
+    x->x_type_mask = s;
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+    x->x_packet0 = -1;
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_convert_setup(void)
+{
+
+
+    pdp_convert_class = class_new(gensym("pdp_convert"), (t_newmethod)pdp_convert_new,
+    	(t_method)pdp_convert_free, sizeof(t_pdp_convert), 0, A_DEFSYMBOL, A_NULL);
+
+
+    class_addmethod(pdp_convert_class, (t_method)pdp_convert_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addsymbol(pdp_convert_class, (t_method)pdp_convert_type_mask);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_del.c b/modules/generic/pdp_del.c
new file mode 100644
index 0000000..4b51023
--- /dev/null
+++ b/modules/generic/pdp_del.c
@@ -0,0 +1,193 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+
+
+typedef struct pdp_del_struct
+{
+    t_object x_obj;
+    t_float x_f;
+  
+    t_outlet *x_outlet0;
+
+    t_outlet **x_outlet;
+
+    int *x_packet;
+    int x_order;
+    int x_head;
+    int x_delay;
+} t_pdp_del;
+
+
+
+
+
+static void pdp_del_input_0(t_pdp_del *x, t_symbol *s, t_floatarg f)
+{
+  int in;
+  int out;
+  int packet;
+  
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+    /* if this is a process message, start the processing + propagate stuff to outputs */
+
+    if (s == gensym("register_ro")){
+      in = (x->x_head % x->x_order);
+      //post("pdp_del: marking unused packed id=%d on loc %d", x->x_packet[0], in);
+      pdp_packet_mark_unused(x->x_packet[in]);
+      packet = pdp_packet_copy_ro((int)f);
+
+
+      // TODO TODO TODO !!!!
+
+      //pdp_packet_print_debug((int)f);
+
+      
+
+
+      x->x_packet[in] = packet;
+      //post("pdp_del: writing packed id=%d on loc %d", packet, in);
+    }
+    else if (s == gensym("process")){
+      out = (((x->x_head + x->x_delay)) % x->x_order);
+      packet = x->x_packet[out];
+      pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet[out]);
+
+/*
+      if (-1 != packet){
+	//post("pdp_del: packet %d has id %d", out, packet);
+	pdp_packet_mark_unused(packet);
+	outlet_pdp(x->x_outlet0, packet);
+	x->x_packet[out] = -1;
+      }
+
+
+      else {
+	//post("pdp_del: packet %d is empty", out);
+      }
+*/
+
+      x->x_head = (x->x_head + x->x_order - 1) % x->x_order;
+    }
+
+
+}
+
+
+
+
+
+static void pdp_del_delay(t_pdp_del *x, t_floatarg fdel)
+{
+  int del = (int)fdel;
+  if (del < 0) del = 0;
+  if (del >= x->x_order) del = x->x_order - 1;
+
+  x->x_delay = del;
+
+}
+
+static void pdp_del_reset(t_pdp_del *x)
+{
+  int i;
+  for (i=0; i<x->x_order; i++) {
+      pdp_packet_mark_unused(x->x_packet[i]);
+      x->x_packet[i] = -1;
+  }
+  x->x_head = 0;
+
+}
+
+static void pdp_del_debug(t_pdp_del *x)
+{
+  int i;
+  post ("order %d", x->x_order);
+  post ("delay %d", x->x_delay);
+  post ("head %d", x->x_head);
+  for (i=0; i<x->x_order; i++) {
+      post("%d ", x->x_packet[i]);
+  }
+}
+
+static void pdp_del_free(t_pdp_del *x)
+{
+  pdp_del_reset(x);
+  pdp_dealloc (x->x_packet);
+}
+
+t_class *pdp_del_class;
+
+
+
+void *pdp_del_new(t_floatarg forder, t_floatarg fdel)
+{
+  int order = (int)forder;
+  int del;
+  int logorder;
+  int i;
+  t_pdp_del *x = (t_pdp_del *)pd_new(pdp_del_class);
+
+  del = order;
+  order++;
+
+  if (del < 0) del = 0;
+  if (order <= 2) order = 2;
+
+  //post("pdp_del: order = %d", order);
+
+  x->x_order = order;
+  x->x_packet = (int *)pdp_alloc(sizeof(int)*order);
+  for(i=0; i<order; i++) x->x_packet[i] = -1;
+  x->x_delay = del;
+  inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("delay"));
+  x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+
+  return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_del_setup(void)
+{
+
+
+    pdp_del_class = class_new(gensym("pdp_del"), (t_newmethod)pdp_del_new,
+			      (t_method)pdp_del_free, sizeof(t_pdp_del), 0, A_DEFFLOAT, A_NULL);
+    
+    class_addmethod(pdp_del_class, (t_method)pdp_del_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_del_class, (t_method)pdp_del_delay, gensym("delay"),  A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_del_class, (t_method)pdp_del_reset, gensym("reset"),  A_NULL);
+
+    class_addmethod(pdp_del_class, (t_method)pdp_del_debug, gensym("_debug"),  A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_description.c b/modules/generic/pdp_description.c
new file mode 100644
index 0000000..4f2ff13
--- /dev/null
+++ b/modules/generic/pdp_description.c
@@ -0,0 +1,98 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+
+
+
+typedef struct pdp_description_struct
+{
+    t_object x_obj;
+    t_outlet *x_outlet;
+
+} t_pdp_description;
+
+
+
+
+static void pdp_description_input_pdp(t_pdp_description *x, t_symbol *s, t_floatarg f)
+{
+    int p = (int)f;
+    t_symbol *rro = S_REGISTER_RO;
+
+    if (rro == s){
+	outlet_symbol(x->x_outlet, gensym(pdp_packet_get_description(p)->s_name));
+    }
+}
+
+static void pdp_description_input_dpd(t_pdp_description *x, t_symbol *s, t_floatarg f)
+{
+    int p = (int)f;
+    t_symbol *ins = S_INSPECT;
+
+    if (ins == s){
+	outlet_symbol(x->x_outlet, gensym(pdp_packet_get_description(p)->s_name));
+    }
+}
+
+
+static void pdp_description_free(t_pdp_description *x)
+{
+
+}
+
+t_class *pdp_description_class;
+
+
+
+static void *pdp_description_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_pdp_description *x = (t_pdp_description *)pd_new(pdp_description_class);
+
+    x->x_outlet = outlet_new(&x->x_obj, &s_symbol);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_description_setup(void)
+{
+
+
+    pdp_description_class = class_new(gensym("pdp_description"), (t_newmethod)pdp_description_new,
+    	(t_method)pdp_description_free, sizeof(t_pdp_description), 0, A_NULL);
+
+    class_addmethod(pdp_description_class, (t_method)pdp_description_input_pdp, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_description_class, (t_method)pdp_description_input_dpd, gensym("dpd"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_inspect.c b/modules/generic/pdp_inspect.c
new file mode 100644
index 0000000..b669475
--- /dev/null
+++ b/modules/generic/pdp_inspect.c
@@ -0,0 +1,124 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+
+/* adapted from the pd trigger object */
+
+#define TR_BANG 0
+#define TR_FLOAT 1
+#define TR_SYMBOL 2
+#define TR_POINTER 3
+#define TR_LIST 4
+#define TR_ANYTHING 5
+#define TR_PDP 6
+
+/*
+
+$$$TODO: emplement so that it behaves like the standard trigger object
+
+i.e. [trigger bang pdp pdp bang pdp]
+
+register_ro and register_rw messages pass right trough,
+since they're not action events, only configure events.
+a bang is made equivalent to a process event.
+
+*/
+
+typedef struct pdp_inspect_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet;
+
+} t_pdp_inspect;
+
+
+
+
+static void pdp_inspect_input_0(t_pdp_inspect *x, t_symbol *s, t_floatarg f)
+{
+    t_atom atom[2];
+    t_symbol *pdp = gensym("pdp");
+    t_symbol *prc = gensym("process");
+    t_symbol *rro = gensym("register_ro");
+    int i;
+
+
+    /* if there is a reg_ro, shortcut the right outlet */
+    if (s == rro){
+	SETSYMBOL(atom+0, s);
+	SETFLOAT(atom+1, f);
+	outlet_anything(x->x_outlet, pdp, 2, atom);
+	SETSYMBOL(atom+0, prc);
+	outlet_anything(x->x_outlet, pdp, 1, atom);
+    }
+
+    
+}
+
+
+
+static void pdp_inspect_free(t_pdp_inspect *x)
+{
+
+}
+
+t_class *pdp_inspect_class;
+
+
+
+static void *pdp_inspect_new(void)
+{
+    t_pdp_inspect *x = (t_pdp_inspect *)pd_new(pdp_inspect_class);
+
+    
+    x->x_outlet = outlet_new(&x->x_obj, &s_anything);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_inspect_setup(void)
+{
+
+
+    pdp_inspect_class = class_new(gensym("pdp_inspect_ro"), (t_newmethod)pdp_inspect_new,
+    	(t_method)pdp_inspect_free, sizeof(t_pdp_inspect), 0, A_GIMME, A_NULL);
+
+    class_addcreator((t_newmethod)pdp_inspect_new, gensym("pdp_t"), A_GIMME, 0);
+    
+    class_addmethod(pdp_inspect_class, (t_method)pdp_inspect_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_loop.c b/modules/generic/pdp_loop.c
new file mode 100644
index 0000000..259eb8f
--- /dev/null
+++ b/modules/generic/pdp_loop.c
@@ -0,0 +1,296 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+/*
+
+  pdp_loop: a looping packet delay line
+  messages:
+     record x: start recording at position x (default = 0)
+     stop:     stop recording
+     float:    output packet at position
+     bang:     output next packet
+     rewind:   rewind
+     loop:     set looping mode
+
+*/
+
+
+#include "pdp.h"
+#include "pdp_internals.h"
+
+
+typedef struct pdp_loop_struct
+{
+    t_object x_obj;
+    t_float x_f;
+  
+    t_outlet *x_outlet0;
+    t_outlet *x_outlet1;
+
+    int *x_packet;
+    int x_order;       /* size of the packet loop */
+    int x_play_head;   /* next position to play back */
+    int x_record_head; /* next position to record to */
+
+    int x_loop;
+    int x_recording_frames;    /* nb frames left to record */
+    //int x_recording_shot; /* single frame recording is on */
+} t_pdp_loop;
+
+
+
+
+
+static void pdp_loop_input_0(t_pdp_loop *x, t_symbol *s, t_floatarg f)
+{
+  int in;
+  int out;
+  int packet;
+
+  
+  /* if recording is off, ignore packet */
+  if ((!x->x_recording_frames)) return;
+
+  /* store a packet on register ro */
+  if (s == gensym("register_ro")){
+
+      /* delete old & store new */
+      in = x->x_record_head; //% x->x_order;
+      pdp_packet_mark_unused(x->x_packet[in]);
+      packet = pdp_packet_copy_ro((int)f);
+      x->x_packet[in] = packet;
+
+      /* advance head & decrease record counter */
+      x->x_recording_frames--;
+      x->x_record_head++;
+
+      /* turn off recording if we are at the end */
+      if (x->x_record_head == x->x_order) x->x_recording_frames = 0;
+  }
+}
+
+
+static void pdp_loop_bang(t_pdp_loop *x){
+    int out;
+    int packet;
+
+    out = x->x_play_head;
+
+    /* don't play if we're at the end of the sequence and looping is disabled */
+    if ((!x->x_loop) && (out >= x->x_order)) return;
+
+    /* wrap index */
+    out %=  x->x_order;
+
+    /* output the current packet */
+    packet = x->x_packet[out];
+    outlet_float(x->x_outlet1, (float)out); // output location
+    if (-1 != packet) outlet_pdp(x->x_outlet0, packet); // output packet
+
+    /* advance playback head */
+    x->x_play_head++;
+
+}
+
+
+
+
+
+
+static void pdp_loop_reset(t_pdp_loop *x)
+{
+  int i;
+  for (i=0; i<x->x_order; i++) {
+      pdp_packet_mark_unused(x->x_packet[i]);
+      x->x_packet[i] = -1;
+  }
+  x->x_play_head = 0;
+  x->x_record_head = 0;
+
+}
+
+static void pdp_loop_record(t_pdp_loop *x, t_floatarg fstart, t_floatarg fdur)
+{
+    int istart = (int)fstart;
+    int idur = (int)fdur;
+    istart %= x->x_order;
+    if (istart<0) istart+= x->x_order;
+    if (idur <= 0) idur = x->x_order - istart;
+
+    x->x_record_head = istart;
+    x->x_recording_frames = idur;
+}
+
+static void pdp_loop_store(t_pdp_loop *x, t_floatarg f)
+{
+    int i = (int)f;
+    i %= x->x_order;
+    if (i<0) i+= x->x_order;
+
+    x->x_record_head = i;
+    x->x_recording_frames = 1;
+}
+
+static void pdp_loop_seek(t_pdp_loop *x, t_floatarg f)
+{
+    int i = (int)f;
+    i %= x->x_order;
+    if (i<0) i+= x->x_order;
+
+    x->x_play_head = i;
+}
+
+static void pdp_loop_seek_hot(t_pdp_loop *x, t_floatarg f)
+{
+    pdp_loop_seek(x, f);
+    pdp_loop_bang(x);
+}
+
+
+static void pdp_loop_stop(t_pdp_loop *x)
+{
+    x->x_recording_frames = 0;
+}
+
+static void pdp_loop_loop(t_pdp_loop *x, t_floatarg f)
+{
+    if (f == 0.0f) x->x_loop = 0;
+    if (f == 1.0f) x->x_loop = 1;
+
+}
+static void pdp_loop_free(t_pdp_loop *x)
+{
+  pdp_loop_reset(x);
+  pdp_dealloc (x->x_packet);
+}
+
+static int pdp_loop_realsize(float f)
+{
+    int order = (int)f;
+    if (order <= 2) order = 2;
+    return order;
+}
+
+
+static void pdp_loop_resize(t_pdp_loop *x, t_floatarg f)
+{
+    int i;
+    int order = pdp_loop_realsize(f);
+    int *newloop;
+
+    /* if size didn't change, do nothing */
+    if (x->x_order == order) return;
+
+    /* create new array */
+    newloop = (int *)pdp_alloc(sizeof(int) * order);
+
+
+    /* extend it */
+    if (x->x_order < order){
+
+	/* copy old packets */
+	for (i=0; i<x->x_order; i++) newloop[i] = x->x_packet[i];
+
+	/* loop extend the rest */
+	for (i=x->x_order; i<order; i++) newloop[i] = pdp_packet_copy_ro(x->x_packet[i % x->x_order]);
+
+    }
+
+    /* or shrink it */
+    else {
+	/* copy part of old packets */
+	for (i=0; i<order; i++) newloop[i] = x->x_packet[i];
+
+	/* delete the other part of old packets */
+	for (i=order; i<x->x_order; i++) pdp_packet_mark_unused(x->x_packet[i]);
+
+	/* adjust heads */
+	x->x_play_head %= order;
+	x->x_record_head %= order;
+
+    }
+
+    /* delete old line & store new */
+    pdp_dealloc (x->x_packet);
+    x->x_packet = newloop;
+    x->x_order = order;
+    
+
+}
+
+
+t_class *pdp_loop_class;
+
+
+
+void *pdp_loop_new(t_floatarg f)
+{
+    int i;
+    int order = pdp_loop_realsize(f);
+    t_pdp_loop *x = (t_pdp_loop *)pd_new(pdp_loop_class);
+
+    x->x_order = order;
+    x->x_packet = (int *)pdp_alloc(sizeof(int)*order);
+    for(i=0; i<order; i++) x->x_packet[i] = -1;
+
+    x->x_play_head = 0;
+    x->x_record_head = 0;
+    x->x_recording_frames = 0;
+
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("seek"));
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+    x->x_outlet1 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_loop = 1;
+    
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_loop_setup(void)
+{
+
+
+    pdp_loop_class = class_new(gensym("pdp_loop"), (t_newmethod)pdp_loop_new,
+			      (t_method)pdp_loop_free, sizeof(t_pdp_loop), 0, A_DEFFLOAT, A_NULL);
+    
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_record, gensym("record"),  A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_store, gensym("store"),  A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_reset, gensym("reset"),  A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_bang, gensym("bang"),  A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_stop, gensym("stop"),  A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_seek, gensym("seek"),  A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_resize, gensym("size"),  A_FLOAT, A_NULL);
+    class_addmethod(pdp_loop_class, (t_method)pdp_loop_loop, gensym("loop"),  A_FLOAT, A_NULL);
+    class_addfloat(pdp_loop_class, (t_method)pdp_loop_seek_hot);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_rawin.c b/modules/generic/pdp_rawin.c
new file mode 100644
index 0000000..28ef8fb
--- /dev/null
+++ b/modules/generic/pdp_rawin.c
@@ -0,0 +1,299 @@
+/*
+ *   Pure Data Packet module. packet forth console
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <time.h>
+#include <fcntl.h>
+#include "pdp_pd.h"
+#include "pdp_debug.h"
+#include "pdp_list.h"
+#include "pdp_comm.h"
+#include "pdp_post.h"
+#include "pdp_packet.h"
+
+
+#define PERIOD 1.0f
+#define D if (1)
+
+
+
+
+/* raw input from a unix pipe */
+
+typedef struct rawin_struct
+{
+    /* pd */
+    t_object x_obj;
+    t_outlet *x_outlet;
+    t_outlet *x_sync_outlet;
+    t_clock *x_clock;
+
+    /* comm */
+    t_pdp_list *x_queue; // packet queue
+
+    /* thread */
+    pthread_mutex_t x_mut;
+    pthread_attr_t x_attr;
+    pthread_t x_thread;
+
+    /* sync */
+    int x_giveup;  // 1-> terminate reader thread
+    int x_active;  // 1-> reader thread is launched
+    int x_done;    // 1-> reader thread has exited
+
+    /* config */
+    t_symbol *x_pipe;
+    t_pdp_symbol *x_type;
+
+} t_rawin;
+
+
+static inline void lock(t_rawin *x){pthread_mutex_lock(&x->x_mut);}
+static inline void unlock(t_rawin *x){pthread_mutex_unlock(&x->x_mut);}
+
+static void rawin_close(t_rawin *x);
+static void tick(t_rawin *x)
+{
+    /* send all packets in queue to outlet */
+    lock(x);
+    while (x->x_queue->elements){
+	outlet_pdp_atom(x->x_outlet, x->x_queue->first);
+	pdp_list_pop(x->x_queue); // pop stale reference
+    }
+    unlock(x);
+    clock_delay(x->x_clock, PERIOD);
+
+    /* check if thread is done */
+    if (x->x_done) rawin_close(x);
+
+}
+
+static void move_current_to_queue(t_rawin *x, int packet)
+{
+    lock(x);
+    pdp_list_add_back(x->x_queue, a_packet, (t_pdp_word)packet);
+    unlock(x);
+}
+
+static void *rawin_thread(void *y)
+{
+    int pipe;
+    int packet = -1;
+    t_rawin *x = (t_rawin *)y;
+    int period_sec;
+    int period_usec;
+
+
+    //D pdp_post("pipe: %s", x->x_pipe->s_name);
+    //D pdp_post("type: %s", x->x_type->s_name);
+
+    /* open pipe */
+    if (-1 == (pipe = open(x->x_pipe->s_name, O_RDONLY|O_NONBLOCK))){
+	perror(x->x_pipe->s_name);
+	goto exit;
+    }
+
+    /* main loop (packets) */
+    while(1){
+	void *data = 0;
+	int left = -1;
+
+	/* create packet */
+	if (-1 != packet){
+	    pdp_post("WARNING: deleting stale packet");
+	    pdp_packet_mark_unused(packet);
+	}
+	packet = pdp_factory_newpacket(x->x_type);
+	if (-1 == packet){
+	    pdp_post("ERROR: can't create packet. type = %s", x->x_type->s_name);
+	    goto exit;
+	}
+	
+	/* fill packet */
+	data = pdp_packet_data(packet);
+	left = pdp_packet_data_size(packet);
+	// D pdp_post("packet %d, data %x, size %d", packet, data, left);
+
+	/* inner loop: pipe reads */
+	while(left){
+
+	    fd_set inset;
+	    struct timeval tv = {0,10000};
+
+	    /* check if we need to stop */
+	    if (x->x_giveup){
+		pdp_packet_mark_unused(packet);
+		goto close;
+	    }
+	    /* select, with timeout */
+	    FD_ZERO(&inset);
+	    FD_SET(pipe, &inset);
+	    if (-1 == select(pipe+1, &inset, NULL,NULL, &tv)){
+		pdp_post("select error");
+		goto close;
+	    }
+
+	    /* if ready, read, else retry */
+	    if (FD_ISSET(pipe, &inset)){
+		int bytes = read(pipe, data, left);
+		if (!bytes){
+		    /* if no bytes are read, pipe is closed */
+		    goto close;
+		}
+		data += bytes;
+		left -= bytes;
+	    }
+	}
+		   
+	/* move to queue */
+	move_current_to_queue(x, packet);
+	packet = -1;
+
+
+    
+    }
+
+  close:
+    /* close pipe */
+    close(pipe);
+	
+	
+  exit:
+    x->x_done = 1;
+    return 0;
+}
+
+
+
+static void rawin_type(t_rawin *x, t_symbol *type)
+{
+    x->x_type = pdp_gensym(type->s_name);
+}
+
+static void rawin_open(t_rawin *x, t_symbol *pipe)
+{
+    /* save pipe name if not empty */
+    if (pipe->s_name[0]) {x->x_pipe = pipe;}
+
+    if (x->x_active) {
+	pdp_post("already open");
+	return;
+    }
+    /* start thread */
+    x->x_giveup = 0;
+    x->x_done = 0;
+    pthread_create(&x->x_thread, &x->x_attr, rawin_thread , x);
+    x->x_active = 1;
+}
+
+static void rawin_close(t_rawin *x)
+{
+
+    if (!x->x_active) return;
+
+    /* stop thread: set giveup + wait */
+    x->x_giveup = 1;
+    pthread_join(x->x_thread, NULL);
+    x->x_active = 0;
+
+    /* notify */
+    outlet_bang(x->x_sync_outlet);
+    pdp_post("connection to %s closed", x->x_pipe->s_name);
+
+    
+
+
+    
+}
+
+static void rawin_free(t_rawin *x)
+{
+    rawin_close(x);
+    clock_free(x->x_clock);
+    pdp_tree_strip_packets(x->x_queue);
+    pdp_tree_free(x->x_queue);
+}
+
+t_class *rawin_class;
+
+
+static void *rawin_new(t_symbol *pipe, t_symbol *type)
+{
+    t_rawin *x;
+
+    pdp_post("%s %s", pipe->s_name, type->s_name);
+
+    /* allocate & init */
+    x = (t_rawin *)pd_new(rawin_class);
+    x->x_outlet = outlet_new(&x->x_obj, &s_anything);
+    x->x_sync_outlet = outlet_new(&x->x_obj, &s_anything);
+    x->x_clock = clock_new(x, (t_method)tick);
+    x->x_queue = pdp_list_new(0);
+    x->x_active = 0;
+    x->x_giveup = 0;
+    x->x_done = 0;
+    x->x_type = pdp_gensym("image/YCrCb/320x240"); //default
+    x->x_pipe = gensym("/tmp/pdpraw"); // default
+    pthread_attr_init(&x->x_attr);
+    pthread_mutex_init(&x->x_mut, NULL);
+    clock_delay(x->x_clock, PERIOD);
+
+    /* args */
+    rawin_type(x, type);
+    if (pipe->s_name[0]) x->x_pipe = pipe; 
+
+    return (void *)x;
+
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_rawin_setup(void)
+{
+    int i;
+
+    /* create a standard pd class: [pdp_rawin pipe type] */
+    rawin_class = class_new(gensym("pdp_rawin"), (t_newmethod)rawin_new,
+   	(t_method)rawin_free, sizeof(t_rawin), 0, A_DEFSYMBOL, A_DEFSYMBOL, A_NULL);
+
+    /* add global message handler */
+    class_addmethod(rawin_class, (t_method)rawin_type, gensym("type"), A_SYMBOL, A_NULL);
+    class_addmethod(rawin_class, (t_method)rawin_open, gensym("open"), A_DEFSYMBOL, A_NULL);
+    class_addmethod(rawin_class, (t_method)rawin_close, gensym("close"), A_NULL);
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_rawout.c b/modules/generic/pdp_rawout.c
new file mode 100644
index 0000000..e1e9edf
--- /dev/null
+++ b/modules/generic/pdp_rawout.c
@@ -0,0 +1,320 @@
+/*
+ *   Pure Data Packet module. packet forth console
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <time.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <signal.h>
+#include "pdp_pd.h"
+#include "pdp_debug.h"
+#include "pdp_list.h"
+#include "pdp_comm.h"
+#include "pdp_post.h"
+#include "pdp_packet.h"
+
+
+#define D if (1)
+#define MAX_QUEUESIZE 4
+#define PIPE_BLOCKSIZE 4096
+
+
+
+
+/* raw input from a unix pipe */
+
+typedef struct rawout_struct
+{
+    /* pd */
+    t_object x_obj;
+    //t_outlet *x_outlet;
+    t_outlet *x_sync_outlet;
+
+    /* comm */
+    t_pdp_list *x_queue; // packet queue
+
+    /* thread */
+    pthread_mutex_t x_mut;
+    pthread_attr_t x_attr;
+    pthread_t x_thread;
+
+    /* sync */
+    int x_giveup;  // 1-> terminate writer thread
+    int x_active;  // 1-> writer thread is launched
+    int x_done;    // 1-> writer thread has exited
+
+    /* config */
+    t_symbol *x_pipe;
+    t_pdp_symbol *x_type;
+
+} t_rawout;
+
+
+static inline void lock(t_rawout *x){pthread_mutex_lock(&x->x_mut);}
+static inline void unlock(t_rawout *x){pthread_mutex_unlock(&x->x_mut);}
+
+static void rawout_close(t_rawout *x);
+static void pdp_in(t_rawout *x, t_symbol *s, t_float f)
+{
+    /* save packet to pdp queue, if size is smaller than maxsize */
+    if (s == S_REGISTER_RO){
+	if (x->x_queue->elements < MAX_QUEUESIZE){
+	    int p = (int)f;
+	    p = pdp_packet_copy_ro(p);
+	    if (p != -1){
+		lock(x);
+		pdp_list_add_back(x->x_queue, a_packet, (t_pdp_word)p);
+		unlock(x);
+	    }
+	}
+	else {
+	    pdp_post("pdp_rawout: dropping packet: (queue full)", MAX_QUEUESIZE);
+	}
+	    
+    }
+
+    /* check if thread is done */
+    if (x->x_done) rawout_close(x);
+
+}
+
+
+
+static void *rawout_thread(void *y)
+{
+    int pipe;
+    int packet = -1;
+    t_rawout *x = (t_rawout *)y;
+    int period_sec;
+    int period_usec;
+    sigset_t sigvec; /* signal handling  */
+
+    /* ignore pipe signal */
+    sigemptyset(&sigvec);
+    sigaddset(&sigvec,SIGPIPE);
+    pthread_sigmask(SIG_BLOCK, &sigvec, 0);
+
+    //D pdp_post("pipe: %s", x->x_pipe->s_name);
+    //D pdp_post("type: %s", x->x_type->s_name);
+
+    /* open pipe */
+    if (-1 == (pipe = open(x->x_pipe->s_name, O_WRONLY|O_NONBLOCK))){
+	perror(x->x_pipe->s_name);
+	goto exit;
+    }
+
+    /* main loop (packets) */
+    while(1){
+	void *data = 0;
+	int left = -1;
+
+	/* try again if queue is empty */
+	if (!x->x_queue->elements){
+	    /* check if we need to stop */
+	    if (x->x_giveup){
+		goto close;
+	    }
+	    else {
+		usleep(1000.0f); // sleep before polling again
+		continue;
+	    }
+	}
+	/* get packet from queue */
+	lock(x);
+	packet = pdp_list_pop(x->x_queue).w_packet;
+	unlock(x);
+	
+	/* send packet */
+	data = pdp_packet_data(packet);
+	left = pdp_packet_data_size(packet);
+
+	/* inner loop: pipe reads */
+	while(left){
+
+	    fd_set outset;
+	    struct timeval tv = {0,10000};
+
+	    /* check if we need to stop */
+	    if (x->x_giveup){
+		pdp_packet_mark_unused(packet);
+		goto close;
+	    }
+
+	    /* select, with timeout */
+	    FD_ZERO(&outset);
+	    FD_SET(pipe, &outset);
+	    if (-1 == select(pipe+1, NULL, &outset, NULL, &tv)){
+		pdp_post("select error");
+		goto close;
+	    }
+
+	    /* if ready, read, else retry */
+	    if (FD_ISSET(pipe, &outset)){
+		int bytes = write(pipe, data, left);
+		/* handle errors */
+		if (bytes <= 0){
+		    perror(x->x_pipe->s_name);
+		    if (bytes != EAGAIN) goto close;
+		}
+		/* or update pointers */
+		else{
+		    data += bytes;
+		    left -= bytes;
+		    //pdp_post("left %d", left);
+		}
+	    }
+	    else {
+		//pdp_post("retrying write");
+	    }
+	}
+		   
+	/* discard packet */
+	pdp_packet_mark_unused(packet);
+
+    
+    }
+
+  close:
+    /* close pipe */
+    close(pipe);
+	
+	
+  exit:
+    x->x_done = 1;
+    return 0;
+}
+
+
+
+static void rawout_type(t_rawout *x, t_symbol *type)
+{
+    x->x_type = pdp_gensym(type->s_name);
+}
+
+static void rawout_open(t_rawout *x, t_symbol *pipe)
+{
+    /* save pipe name if not empty */
+    if (pipe->s_name[0]) {x->x_pipe = pipe;}
+
+    if (x->x_active) {
+	pdp_post("already open");
+	return;
+    }
+    /* start thread */
+    x->x_giveup = 0;
+    x->x_done = 0;
+    pthread_create(&x->x_thread, &x->x_attr, rawout_thread , x);
+    x->x_active = 1;
+}
+
+static void rawout_close(t_rawout *x)
+{
+
+    if (!x->x_active) return;
+
+    /* stop thread: set giveup + wait */
+    x->x_giveup = 1;
+    pthread_join(x->x_thread, NULL);
+    x->x_active = 0;
+
+    /* notify */
+    outlet_bang(x->x_sync_outlet);
+    pdp_post("connection to %s closed", x->x_pipe->s_name);
+
+    
+
+
+    
+}
+
+static void rawout_free(t_rawout *x)
+{
+    rawout_close(x);
+    pdp_tree_strip_packets(x->x_queue);
+    pdp_tree_free(x->x_queue);
+}
+
+t_class *rawout_class;
+
+
+static void *rawout_new(t_symbol *pipe, t_symbol *type)
+{
+    t_rawout *x;
+
+    pdp_post("%s %s", pipe->s_name, type->s_name);
+
+    /* allocate & init */
+    x = (t_rawout *)pd_new(rawout_class);
+    //x->x_outlet = outlet_new(&x->x_obj, &s_anything);
+    x->x_sync_outlet = outlet_new(&x->x_obj, &s_anything);
+    x->x_queue = pdp_list_new(0);
+    x->x_active = 0;
+    x->x_giveup = 0;
+    x->x_done = 0;
+    x->x_type = pdp_gensym("image/YCrCb/320x240"); //default
+    x->x_pipe = gensym("/tmp/pdpraw"); // default
+    pthread_attr_init(&x->x_attr);
+    pthread_mutex_init(&x->x_mut, NULL);
+
+    /* args */
+    rawout_type(x, type);
+    if (pipe->s_name[0]) x->x_pipe = pipe; 
+
+    return (void *)x;
+
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_rawout_setup(void)
+{
+    int i;
+
+    /* create a standard pd class: [pdp_rawout pipe type] */
+    rawout_class = class_new(gensym("pdp_rawout"), (t_newmethod)rawout_new,
+   	(t_method)rawout_free, sizeof(t_rawout), 0, A_DEFSYMBOL, A_DEFSYMBOL, A_NULL);
+
+    /* add global message handler */
+    class_addmethod(rawout_class, (t_method)pdp_in, 
+		    gensym("pdp"), A_SYMBOL, A_FLOAT, A_NULL);
+
+    class_addmethod(rawout_class, (t_method)rawout_type, gensym("type"), A_SYMBOL, A_NULL);
+    class_addmethod(rawout_class, (t_method)rawout_open, gensym("open"), A_DEFSYMBOL, A_NULL);
+    class_addmethod(rawout_class, (t_method)rawout_close, gensym("close"), A_NULL);
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_reg.c b/modules/generic/pdp_reg.c
new file mode 100644
index 0000000..2ad15a6
--- /dev/null
+++ b/modules/generic/pdp_reg.c
@@ -0,0 +1,170 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+#include "pdp_png.h"
+#include "pdp_internals.h"
+
+
+typedef struct pdp_reg_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+
+    int x_packet0;
+
+} t_pdp_reg;
+
+
+static void pdp_reg_load_png(t_pdp_reg *x, t_symbol *s)
+{
+    int packet;
+    //post("sym: %s", s->s_name);
+    packet = pdp_packet_bitmap_from_png_file(s->s_name);
+    if (-1 == packet){
+	post("pdp_reg: error loading png file %s", s->s_name);
+    }
+    else{
+	pdp_packet_mark_unused(x->x_packet0);
+	x->x_packet0 = packet;
+    }
+
+}
+
+static void pdp_reg_save_png(t_pdp_reg *x, t_symbol *s)
+{
+    int newpacket = pdp_packet_convert_ro(x->x_packet0, pdp_gensym("bitmap/*/*"));
+
+    if (-1 == newpacket){
+	post("pdp_reg: nothing to save");
+	return;
+    }
+
+    if (!(pdp_packet_bitmap_save_png_file(newpacket, s->s_name))){
+	post("pdp_reg: error saving png file %s", s->s_name);
+    }
+
+    pdp_packet_mark_unused(newpacket);
+					  
+}
+
+
+static void pdp_reg_bang(t_pdp_reg *x)
+{
+
+    if (-1 != x->x_packet0) outlet_pdp(x->x_outlet0, x->x_packet0);
+
+}
+
+
+
+static void pdp_reg_input_0(t_pdp_reg *x, t_symbol *s, t_floatarg f)
+{
+
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    /* if this is a process message, start the processing + propagate stuff to outputs */
+
+    if (s == gensym("register_ro")){
+	pdp_packet_mark_unused(x->x_packet0);
+	x->x_packet0 = pdp_packet_copy_ro((int)f);
+	//post("in0ro: requested %d, got %d", (int)f, x->x_packet0);
+    }
+    else if (s == gensym("process")){
+	pdp_reg_bang(x);
+
+    }
+
+
+}
+
+
+static void pdp_reg_input_1(t_pdp_reg *x, t_symbol *s, t_floatarg f)
+{
+
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    /* if this is a process message, start the processing + propagate stuff to outputs */
+
+    if (s == gensym("register_ro")){
+	pdp_packet_mark_unused(x->x_packet0);
+	x->x_packet0 = pdp_packet_copy_ro((int)f);
+	//post("in0ro: requested %d, got %d", (int)f, x->x_packet0);
+    }
+
+}
+
+
+
+static void pdp_reg_free(t_pdp_reg *x)
+{
+    pdp_packet_mark_unused(x->x_packet0);
+
+}
+
+t_class *pdp_reg_class;
+
+
+
+void *pdp_reg_new(void)
+{
+    t_pdp_reg *x = (t_pdp_reg *)pd_new(pdp_reg_class);
+
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp1"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_reg_setup(void)
+{
+
+
+    pdp_reg_class = class_new(gensym("pdp_reg"), (t_newmethod)pdp_reg_new,
+    	(t_method)pdp_reg_free, sizeof(t_pdp_reg), 0, A_NULL);
+
+
+    class_addmethod(pdp_reg_class, (t_method)pdp_reg_bang, gensym("bang"), A_NULL);
+    
+    class_addmethod(pdp_reg_class, (t_method)pdp_reg_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_reg_class, (t_method)pdp_reg_input_1, gensym("pdp1"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_reg_class, (t_method)pdp_reg_save_png, gensym("save_png"), A_SYMBOL, A_NULL);
+    class_addmethod(pdp_reg_class, (t_method)pdp_reg_load_png, gensym("load_png"), A_SYMBOL, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_route.c b/modules/generic/pdp_route.c
new file mode 100644
index 0000000..c410d1f
--- /dev/null
+++ b/modules/generic/pdp_route.c
@@ -0,0 +1,146 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+#include "pdp_internals.h"
+
+// dynamic ????
+#define PDP_ROUTE_MAX_NB_OUTLETS 100
+
+typedef struct pdp_route_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet[PDP_ROUTE_MAX_NB_OUTLETS];
+
+    int x_nb_outlets;
+    int x_route;
+    int x_route_next;
+
+
+} t_pdp_route;
+
+
+static void pdp_route_input_0(t_pdp_route *x, t_symbol *s, t_floatarg f)
+{
+    t_atom atom[2];
+    t_symbol *pdp = gensym("pdp");
+
+
+    /* trigger on register_ro */
+    if (s == gensym("register_ro")){
+	x->x_route = x->x_route_next;
+    }
+
+    /* propagate the pdp message */
+    SETSYMBOL(atom+0, s);
+    SETFLOAT(atom+1, f);
+    outlet_anything(x->x_outlet[x->x_route], pdp, 2, atom);
+
+}
+
+static void pdp_route_input_0_dpd(t_pdp_route *x, t_symbol *s, t_floatarg f)
+{
+
+    /* trigger on accumulate */
+    if (s == gensym("accumulate")){
+	x->x_route = x->x_route_next;
+    }
+
+    /* propagate the dpd message */
+    outlet_dpd(x->x_outlet[x->x_route], (int)f);
+
+}
+
+
+
+static void pdp_route_route(t_pdp_route *x, t_floatarg f)
+{
+    int route = (int)f;
+
+    if (route < 0) route = 0;
+    if (route >= x->x_nb_outlets) route = x->x_nb_outlets - 1;
+    
+    x->x_route_next = route;
+
+}
+
+
+
+static void pdp_route_free(t_pdp_route *x)
+{
+    
+}
+
+t_class *pdp_route_class;
+
+
+
+void *pdp_route_new(t_floatarg f)
+{
+    int nboutlets = (int)f;
+    int i;
+
+    t_pdp_route *x = (t_pdp_route *)pd_new(pdp_route_class);
+
+
+    if (nboutlets < 2) nboutlets = 2;
+    if (nboutlets >= PDP_ROUTE_MAX_NB_OUTLETS) nboutlets = PDP_ROUTE_MAX_NB_OUTLETS - 1;
+
+
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("route"));
+
+    x->x_nb_outlets = nboutlets;
+    x->x_route = 0;
+    x->x_route_next = 0;
+
+    for (i=0; i<nboutlets; i++) 
+	x->x_outlet[i] = outlet_new(&x->x_obj, &s_anything);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_route_setup(void)
+{
+
+
+    pdp_route_class = class_new(gensym("pdp_route"), (t_newmethod)pdp_route_new,
+    	(t_method)pdp_route_free, sizeof(t_pdp_route), 0, A_DEFFLOAT, A_NULL);
+
+
+    class_addmethod(pdp_route_class, (t_method)pdp_route_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_route_class, (t_method)pdp_route_input_0_dpd, gensym("dpd"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_route_class, (t_method)pdp_route_route, gensym("route"),  A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_snap.c b/modules/generic/pdp_snap.c
new file mode 100644
index 0000000..73ec26c
--- /dev/null
+++ b/modules/generic/pdp_snap.c
@@ -0,0 +1,120 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+#include "pdp_internals.h"
+
+typedef struct pdp_snap_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+
+    int x_packet0;
+    bool x_snapnext;
+
+} t_pdp_snap;
+
+
+static void pdp_snap_bang(t_pdp_snap *x)
+{
+
+  if (-1 != x->x_packet0)
+    outlet_pdp(x->x_outlet0, x->x_packet0);
+
+}
+
+
+
+
+static void pdp_snap_input_1(t_pdp_snap *x, t_symbol *s, t_floatarg f)
+{
+
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    /* if this is a process message, start the processing + propagate stuff to outputs */
+
+    if (s == gensym("register_ro")){
+      if(x->x_snapnext) {
+	pdp_packet_mark_unused(x->x_packet0);
+	x->x_packet0 = pdp_packet_copy_ro((int)f);
+	x->x_snapnext = false;
+      }
+    }
+
+}
+
+static void pdp_snap_snap(t_pdp_snap *x)
+{
+  x->x_snapnext = true;
+}
+
+static void pdp_snap_free(t_pdp_snap *x)
+{
+    pdp_packet_mark_unused(x->x_packet0);
+
+}
+
+t_class *pdp_snap_class;
+
+
+
+void *pdp_snap_new(void)
+{
+    t_pdp_snap *x = (t_pdp_snap *)pd_new(pdp_snap_class);
+
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp1"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_snapnext = false;
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_snap_setup(void)
+{
+
+
+    pdp_snap_class = class_new(gensym("pdp_snap"), (t_newmethod)pdp_snap_new,
+    	(t_method)pdp_snap_free, sizeof(t_pdp_snap), 0, A_NULL);
+
+
+    class_addmethod(pdp_snap_class, (t_method)pdp_snap_bang, gensym("bang"), A_NULL);
+    class_addmethod(pdp_snap_class, (t_method)pdp_snap_snap, gensym("snap"), A_NULL);
+    
+    class_addmethod(pdp_snap_class, (t_method)pdp_snap_input_1, gensym("pdp1"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_trigger.c b/modules/generic/pdp_trigger.c
new file mode 100644
index 0000000..597125c
--- /dev/null
+++ b/modules/generic/pdp_trigger.c
@@ -0,0 +1,192 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+#include "pdp.h"
+#include "pdp_internals.h"
+
+/* adapted from the pd trigger object */
+
+#define TR_BANG 0
+#define TR_FLOAT 1
+#define TR_SYMBOL 2
+#define TR_POINTER 3
+#define TR_LIST 4
+#define TR_ANYTHING 5
+#define TR_PDP 6
+
+/*
+
+$$$TODO: emplement so that it behaves like the standard trigger object
+
+i.e. [trigger bang pdp pdp bang pdp]
+
+register_ro and register_rw messages pass right trough,
+since they're not action events, only configure events.
+a bang is made equivalent to a process event.
+
+*/
+
+typedef struct triggerout
+{
+    int u_type;         /* outlet type from above */
+    t_outlet *u_outlet;
+} t_triggerout;
+
+
+typedef struct pdp_trigger_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    int x_n;
+    t_triggerout *x_vec;
+
+} t_pdp_trigger;
+
+
+
+
+static void pdp_trigger_input_pdp(t_pdp_trigger *x, t_symbol *s, t_floatarg f)
+{
+    t_atom atom[2];
+    t_symbol *pdp = S_PDP;
+    t_symbol *prc = S_PROCESS;
+    t_triggerout *u;
+    int i;
+
+    for (i = x->x_n, u = x->x_vec + i; u--, i--;){
+	/* trigger bang outlet only when a process event is recieved */
+	if ((u->u_type == TR_BANG) && (s == prc)){
+	    outlet_bang(u->u_outlet);
+	}
+	/* just pass the message if it is a pdp outlet */
+	if ((u->u_type) == TR_PDP){
+	    SETSYMBOL(atom+0, s);
+	    SETFLOAT(atom+1, f);
+	    if (s == prc) outlet_anything(u->u_outlet, pdp, 1, atom);
+	    else outlet_anything(u->u_outlet, pdp, 2, atom);
+	    
+	}
+    }
+    
+}
+
+static void pdp_trigger_input_dpd(t_pdp_trigger *x, t_symbol *s, t_floatarg f)
+{
+    t_atom atom[2];
+    t_symbol *dpd = S_DPD;
+    t_symbol *acc = S_ACCUMULATE;
+    t_triggerout *u;
+    int i;
+    int p = (int)f;
+
+    for (i = x->x_n, u = x->x_vec + i; u--, i--;){
+	/* trigger outlet only when an accumulate event is recieved */
+	if (s == acc){
+
+	    /* output bang */
+	    if (u->u_type == TR_BANG) outlet_bang(u->u_outlet);
+
+	    /* output a complete dpd message if it is a pdp outlet */
+	    if ((u->u_type) == TR_PDP){
+		outlet_dpd(u->u_outlet, p);
+	    }
+	}
+    }
+    
+}
+
+
+static void pdp_trigger_free(t_pdp_trigger *x)
+{
+    pdp_dealloc(x->x_vec);
+}
+
+t_class *pdp_trigger_class;
+
+
+
+static void *pdp_trigger_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_pdp_trigger *x = (t_pdp_trigger *)pd_new(pdp_trigger_class);
+    t_atom defarg[2], *ap;
+    t_triggerout *u;
+    int i;
+
+
+    if (!argc)
+    {
+        argv = defarg;
+        argc = 2;
+        SETSYMBOL(&defarg[0], gensym("pdp"));
+        SETSYMBOL(&defarg[1], gensym("bang"));
+    }
+
+    x->x_n = argc;
+    x->x_vec = pdp_alloc(argc * sizeof(*x->x_vec));
+
+    for (i = 0, ap = argv, u = x->x_vec; i < argc; u++, ap++, i++)
+    {
+        t_atomtype thistype = ap->a_type;
+        char c;
+        if (thistype == TR_SYMBOL) c = ap->a_w.w_symbol->s_name[0];
+        else c = 0;
+        if (c == 'p')
+            u->u_type = TR_PDP,
+                u->u_outlet = outlet_new(&x->x_obj, &s_anything);
+        else if (c == 'b')
+            u->u_type = TR_BANG, u->u_outlet = outlet_new(&x->x_obj, &s_bang);
+        else
+        {
+            pd_error(x, "pdp_trigger: %s: bad type", ap->a_w.w_symbol->s_name);
+            u->u_type = TR_BANG, u->u_outlet = outlet_new(&x->x_obj, &s_bang);
+        }
+    }
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_trigger_setup(void)
+{
+
+
+    pdp_trigger_class = class_new(gensym("pdp_trigger"), (t_newmethod)pdp_trigger_new,
+    	(t_method)pdp_trigger_free, sizeof(t_pdp_trigger), 0, A_GIMME, A_NULL);
+
+    class_addcreator((t_newmethod)pdp_trigger_new, gensym("pdp_t"), A_GIMME, 0);
+    
+    class_addmethod(pdp_trigger_class, (t_method)pdp_trigger_input_pdp, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_trigger_class, (t_method)pdp_trigger_input_dpd, gensym("dpd"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_udp_receive.c b/modules/generic/pdp_udp_receive.c
new file mode 100644
index 0000000..3d42466
--- /dev/null
+++ b/modules/generic/pdp_udp_receive.c
@@ -0,0 +1,203 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+/* this module sends receives an udp packet stream and converts to pdp packet */
+
+#include "pdp_net.h"
+#include "pdp.h"
+#include "pdp_resample.h"
+
+#define D if(0)
+
+typedef struct pdp_udp_receive_struct
+{
+
+    t_object x_obj;
+    t_float x_f;
+
+    /* receiver object */
+    t_pdp_udp_receiver *x_receiver;
+
+
+    /* thread vars */
+    pthread_attr_t x_attr;
+    pthread_t x_thread;
+    int x_exit_thread;
+
+    /* packet queue */
+    int x_index;
+    int x_packet[2];    
+
+    /* polling clock */
+    t_clock *x_clock;
+    /* outlet */
+    t_outlet *x_outlet0;
+
+} t_pdp_udp_receive;
+
+
+static void clock_tick(t_pdp_udp_receive *x)
+{
+    /* poll for new packet */
+  
+    pdp_pass_if_valid(x->x_outlet0, &x->x_packet[!x->x_index]);
+    clock_delay(x->x_clock, 1.0f);
+}
+
+
+
+
+static void *receive_thread(void *threaddata)
+{
+    t_pdp_udp_receive *x = (t_pdp_udp_receive *)threaddata;
+    t_pdp *pdp_header = 0;
+    void *pdp_data = 0;
+    int tmp_packet = -1;
+    char *type = 0;
+    unsigned int size = 0;
+
+    /* listen for packets */
+    while (!x->x_exit_thread){
+	
+
+	switch(pdp_udp_receiver_receive(x->x_receiver, 100)){
+	case -1:
+	    /* error */
+	    goto exit;
+	case 0:
+	    /* timeout */
+	    continue;
+	case 1:
+	    /* data ready */
+	    break;
+	}
+
+        /* create a new packet */
+	type = pdp_udp_receiver_type(x->x_receiver);
+        tmp_packet = pdp_factory_newpacket(pdp_gensym(type));
+        pdp_header = pdp_packet_header(tmp_packet);
+        pdp_data = pdp_packet_data(tmp_packet);
+
+        /* check if we were able to create the pdp packet */
+        if (!(pdp_header && pdp_data)){
+            post("pdp_netreceive: can't create packet (type %s)", type);
+	    pdp_udp_receiver_reset(x->x_receiver);
+	    continue;
+        }
+
+	/* check size */
+	size = pdp_udp_receiver_size(x->x_receiver);
+	if ((pdp_header->size - PDP_HEADER_SIZE) != size){
+	    pdp_packet_mark_unused(tmp_packet);
+	    tmp_packet = -1;
+            post("pdp_netreceive: invalid packet size %d (pdp packet size = %d)", 
+		 size, pdp_header->size - PDP_HEADER_SIZE);
+	    continue;
+	}
+
+	/* copy the data */
+	memcpy(pdp_data, pdp_udp_receiver_data(x->x_receiver), size);
+
+	/* copy the packet into queue */
+	x->x_index ^= 1;
+        pdp_packet_mark_unused(x->x_packet[x->x_index]);
+	x->x_packet[x->x_index] = tmp_packet;
+    
+
+    }
+
+ exit:
+    post("thread exiting");
+    return 0;
+}
+
+
+static void pdp_udp_receive_free(t_pdp_udp_receive *x)
+{
+    int i;
+    void* retval;
+    x->x_exit_thread = 1; // wait for thread to finish
+    pthread_join(x->x_thread, &retval);
+    
+    pdp_udp_receiver_free(x->x_receiver);
+
+    pdp_packet_mark_unused(x->x_packet[0]);
+    pdp_packet_mark_unused(x->x_packet[1]);
+
+}
+
+t_class *pdp_udp_receive_class;
+
+
+
+void *pdp_udp_receive_new(t_floatarg fport)
+{
+    int i;
+    int port;
+    struct hostent *hp;
+
+    t_pdp_udp_receive *x = (t_pdp_udp_receive *)pd_new(pdp_udp_receive_class);
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet[0] = -1;
+    x->x_packet[1] = -1;
+    x->x_index = 0;
+
+    port = (fport == 0.0f) ? 7777 : fport;
+    x->x_receiver = pdp_udp_receiver_new(port);
+
+    /* setup thread stuff & create thread */
+    x->x_exit_thread = 0;
+    pthread_attr_init(&x->x_attr);
+    pthread_attr_setschedpolicy(&x->x_attr, SCHED_OTHER); 
+    pthread_create(&x->x_thread, &x->x_attr, receive_thread, x);
+
+
+    /* setup the clock */
+    x->x_clock = clock_new(x, (t_method)clock_tick);
+    clock_delay(x->x_clock, 0);
+
+    post("pdp_netreceive: WARNING: experimental object");
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_udp_receive_setup(void)
+{
+
+
+    pdp_udp_receive_class = class_new(gensym("pdp_netreceive"), (t_newmethod)pdp_udp_receive_new,
+    	(t_method)pdp_udp_receive_free, sizeof(t_pdp_udp_receive), 0, A_DEFFLOAT, A_NULL);
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/generic/pdp_udp_send.c b/modules/generic/pdp_udp_send.c
new file mode 100644
index 0000000..cb55ad1
--- /dev/null
+++ b/modules/generic/pdp_udp_send.c
@@ -0,0 +1,336 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+
+/* this module sends a pure packet out as an udp packet stream */
+
+#include "pdp_net.h"
+#include "pdp.h"
+#include "pdp_resample.h"
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <netdb.h>
+
+#define DD if(0)  // print DROP debug info
+#define D if(0)  // print extra connection debug info
+#define V if(0)  // be verbose (parameter setting feedback)
+
+typedef struct pdp_udp_send_struct
+{
+
+    t_object x_obj;
+    t_float x_f;
+
+    /* sender object */
+    t_pdp_udp_sender *x_sender;
+
+    /* pthread vars */
+    pthread_mutex_t x_mut;
+    pthread_cond_t x_cond_data_ready;
+    pthread_cond_t x_cond_send_done;
+    pthread_t x_thread;
+    int x_exit_thread;
+
+    // drop info
+    unsigned int x_drop;
+
+    t_outlet *x_outlet0;
+
+    // packet queue
+    int x_nb_packets;
+    int x_read_packet;
+    int x_write_packet;
+    int *x_packet;    
+
+
+} t_pdp_udp_send;
+
+
+
+
+
+/* some synchro code */
+
+static int _wait_for_feeder(t_pdp_udp_send *x)
+{
+
+    /* only use locking when there is no data */
+    if (x->x_packet[x->x_read_packet] == -1){
+
+	/* signal sending is done */
+	pthread_mutex_lock(&x->x_mut);
+	pthread_cond_signal(&x->x_cond_send_done);
+
+	/* wait until there is an item in the queue */
+	while((x->x_packet[x->x_read_packet] == -1) && (!x->x_exit_thread)){
+	    pthread_cond_wait(&x->x_cond_data_ready, &x->x_mut);
+	}
+	pthread_mutex_unlock(&x->x_mut);
+
+	/* check if we need to stop the thread */
+	if (x->x_exit_thread) return 0;
+
+    }
+
+    return !x->x_exit_thread;
+}
+
+static void _signal_sender(t_pdp_udp_send *x)
+{
+
+    pthread_mutex_lock(&x->x_mut);
+    pthread_cond_signal(&x->x_cond_data_ready);
+    pthread_mutex_unlock(&x->x_mut);
+}
+
+static void _wait_until_done(t_pdp_udp_send *x)
+{
+    pthread_mutex_lock(&x->x_mut);
+    while (x->x_packet[x->x_read_packet] != -1){
+	  pthread_cond_wait(&x->x_cond_send_done, &x->x_mut);
+    }
+    pthread_mutex_unlock(&x->x_mut);
+}
+
+
+static void _remove_packet_from_queue(t_pdp_udp_send *x)
+{
+
+}
+
+
+
+
+
+static void *send_thread(void *threaddata)
+{
+    t_pdp_udp_send *x = (t_pdp_udp_send *)threaddata;
+
+    /* main thread loop */
+
+    /* get a pdp packet from queue */
+    /* send header packet and make sure it has arrived */
+    /* send a chunk burst */
+    /* send done packet and get the resend list */
+    /* repeat until send list is empty */
+
+    while (_wait_for_feeder(x)){
+	t_pdp *header;
+	void *data;
+
+	/* check if we have a valid pdp packet */
+	if ((!(header = pdp_packet_header(x->x_packet[x->x_read_packet])))
+	    ||(!(data = pdp_packet_data(x->x_packet[x->x_read_packet])))
+	    ||(0 == header->desc)) goto remove; /* nothing to transmit  */
+
+	/* send it */
+	pdp_udp_sender_send(x->x_sender, 
+			    header->desc->s_name,
+			    header->size - PDP_HEADER_SIZE, data); 
+
+
+      remove:
+	/* remove packet from queue */
+	pdp_packet_mark_unused(x->x_packet[x->x_read_packet]);
+	x->x_packet[x->x_read_packet] = -1;
+	x->x_read_packet++;
+	x->x_read_packet %= x->x_nb_packets;
+   
+    }
+    return 0;
+}
+
+
+static void pdp_udp_send_input_0(t_pdp_udp_send *x, t_symbol *s, t_floatarg f)
+{
+
+    int p = (int)f;
+    int my_p;
+    int transferred = 0;
+
+    if (s== gensym("register_ro")){
+
+
+	// check if packet can be stored in the queue
+	// this is possible if the current write location does not contain a packet
+
+	if (x->x_packet[x->x_write_packet] == -1){
+
+	    // get the packet outside of the lock
+	    my_p = pdp_packet_copy_ro(p); 
+
+
+	    // add to queue (do we really need to lock here?>
+	    //pthread_mutex_lock(&x->x_mut); // LOCK
+	       x->x_packet[x->x_write_packet] = my_p;
+	       x->x_write_packet++;
+	       x->x_write_packet %= x->x_nb_packets;
+	       transferred = 1;
+	    //pthread_mutex_unlock(&x->x_mut); // UNLOCK
+	}
+
+	// signal sender if transfer succeded
+	if (transferred) _signal_sender(x);
+
+	// else send a float indicating the number of drops so far
+	else{
+	    x->x_drop++;
+	    //outlet_float(x->x_outlet0, (float)x->x_drop);
+
+	    DD post ("pdp_netsend: DROP: queue full");
+	}
+    }
+}
+
+
+
+/* some flow control hacks */
+
+static void pdp_udp_send_timeout(t_pdp_udp_send *x, float f)
+{
+    if (f < 0.0f) f = 0.0f;
+    pdp_udp_sender_timeout_us(x->x_sender, 1000.0f * f);
+}
+
+
+static void pdp_udp_send_sleepgrain(t_pdp_udp_send *x, float f)
+{
+    if (f < 0.0f) f = 0.0f;
+    pdp_udp_sender_sleepgrain_us(x->x_sender, 1000.0f * f);
+}
+
+static void pdp_udp_send_sleepperiod(t_pdp_udp_send *x, float f)
+{
+    if (f < 0.0f) f = 0.0f;
+    pdp_udp_sender_sleepperiod(x->x_sender, f);
+}
+
+
+static void pdp_udp_send_udpsize(t_pdp_udp_send *x, float f)
+{
+    if (f < 0.0f) f = 0.0f;
+    pdp_udp_sender_udp_packet_size(x->x_sender, f);
+}
+
+static void pdp_udp_send_connect(t_pdp_udp_send *x, t_symbol *shost, t_float fport)
+{
+    unsigned int port;
+    struct hostent *hp;
+
+    /* suspend until sending thread is finished */
+    _wait_until_done(x);
+
+    /* set target address */
+    port = (fport == 0.0f) ? 7777 : fport;
+    if (shost == gensym("")) shost = gensym("127.0.0.1");
+
+    /* connect */
+    pdp_udp_sender_connect(x->x_sender, shost->s_name, port);
+
+}
+
+
+static void pdp_udp_send_free(t_pdp_udp_send *x)
+{
+    int i;
+    void* retval;
+    _wait_until_done(x);  // send all remaining packets
+    x->x_exit_thread = 1; // .. and wait for thread to finish
+    _signal_sender(x);
+    pthread_join(x->x_thread, &retval);
+
+    pdp_udp_sender_free(x->x_sender);
+
+    
+    for (i=0; i<x->x_nb_packets; i++) pdp_packet_mark_unused(x->x_packet[i]);
+    pdp_dealloc(x->x_packet);
+
+}
+
+t_class *pdp_udp_send_class;
+
+
+
+void *pdp_udp_send_new(void)
+{
+    int i;
+    pthread_attr_t attr;
+
+    t_pdp_udp_send *x = (t_pdp_udp_send *)pd_new(pdp_udp_send_class);
+
+    x->x_sender = pdp_udp_sender_new();
+    
+    //x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_nb_packets = 4;
+    x->x_packet = malloc(sizeof(int)*x->x_nb_packets);
+    for (i=0; i<x->x_nb_packets; i++) x->x_packet[i] = -1;
+    x->x_read_packet = 0;
+    x->x_write_packet = 0;
+
+    x->x_drop = 0;
+
+
+
+    /* setup thread stuff & create thread */
+    x->x_exit_thread = 0;
+    pthread_mutex_init(&x->x_mut, NULL);
+    pthread_cond_init(&x->x_cond_data_ready, NULL);
+    pthread_cond_init(&x->x_cond_send_done, NULL);
+    pthread_attr_init(&attr);
+    //pthread_attr_setschedpolicy(&attr, SCHED_OTHER);
+    pthread_create(&x->x_thread, &attr, send_thread, x);
+    post("pdp_netsend: WARNING: experimental object");
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_udp_send_setup(void)
+{
+
+    pdp_udp_send_class = class_new(gensym("pdp_netsend"), (t_newmethod)pdp_udp_send_new,
+    	(t_method)pdp_udp_send_free, sizeof(t_pdp_udp_send), 0, A_NULL);
+
+
+    class_addmethod(pdp_udp_send_class, (t_method)pdp_udp_send_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_udp_send_class, (t_method)pdp_udp_send_sleepgrain, gensym("sleepgrain"), A_FLOAT, A_NULL);
+    class_addmethod(pdp_udp_send_class, (t_method)pdp_udp_send_sleepperiod, gensym("sleepperiod"), A_FLOAT, A_NULL);
+    class_addmethod(pdp_udp_send_class, (t_method)pdp_udp_send_udpsize, gensym("udpsize"), A_FLOAT, A_NULL);
+    class_addmethod(pdp_udp_send_class, (t_method)pdp_udp_send_timeout, gensym("timeout"), A_FLOAT, A_NULL);
+    class_addmethod(pdp_udp_send_class, (t_method)pdp_udp_send_connect, gensym("connect"), A_SYMBOL, A_FLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif