Updating pdp to current version 0.12.2

svn path=/trunk/externals/pdp/; revision=941

12 files changed, 1702 insertions, 0 deletions

diff --git a/modules/generic/Makefile b/modules/generic/Makefile
new file mode 100644
index 0000000..d075b3e
--- /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_forthproc.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..7da684b
--- /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 = pdp_sym_rro();
+
+    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 = pdp_sym_ins();
+
+    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_forthproc.c b/modules/generic/pdp_forthproc.c
new file mode 100644
index 0000000..011396f
--- /dev/null
+++ b/modules/generic/pdp_forthproc.c
@@ -0,0 +1,244 @@
+/*
+ *   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.
+ *
+ */
+
+
+/*
+
+example object definitions:
+
+; stack: (mix_float in_packet state_packet)
+
+(motion-blur
+ ((in 1) (feedback 0))
+ ((out 0))
+ (ip ip 0.0)
+ (dup down mix dup down down))
+
+
+; stack: (ouput_packet packet_type)
+
+(noise-gen
+ ((bang -1) (type 1))
+ ((out 0))
+ (image/YCrCb/320x240 ip)
+ (dup noise))
+
+; constraints:
+; if a processor accepts more than one atom message (float, list, pdp)
+; of the same type they MUST be remapped to other inlets
+
+(pd-mappings
+ (motion-blur ((in 0) (feedback 1) (out 0)))
+ (noise       ((out 0))))
+
+
+*/
+
+
+#include "pdp.h"
+#include "pdp_forth.h"
+
+#define MAXINLETS 4
+
+/* this object instantiates a forth processor */
+
+typedef struct pdp_forthproc_struct
+{
+    t_object x_obj;
+    t_pdp_list *x_processor; // the processor definition
+
+    
+    t_pdp_list *x_passive_stack; // we're still into thread processing
+    t_pdp_list *x_stack;
+    t_pdp_list *x_program;
+
+} t_pdp_forthproc;
+
+
+
+static int _check_portlist(t_pdp_list *l)
+{
+    t_pdp_atom *a;
+    post ("number of ports = %d", l->elements);
+    for (a = l->first; a; a=a->next){
+	t_pdp_atom *b;
+	if (a->t != a_list) goto error;
+	if (a->w.w_list->elements != 2) goto error;
+	b = a->w.w_list->first;
+	if ((b->t != a_symbol) && (b->t != a_int)) goto error;
+	b = b->next;
+	if (b->t != a_int) goto error;
+    }
+    post ("port mappings:");
+    for (a = l->first; a; a=a->next) pdp_list_print(a->w.w_list);
+    return 1;
+ error:
+    return 0;
+}
+
+static int _check_processor(t_pdp_list *p)
+{
+    t_pdp_atom *a;
+    t_pdp_list *l;
+
+    post ("list elements = %d", p->elements);
+    if (p->elements != 4) goto error;
+    for (a=p->first; a; a=a->next) if (a->t != a_list) goto error;
+    post ("all elements are lists: OK");
+
+    a = p->first;
+    post ("checking inlets");
+    if (!_check_portlist(a->w.w_list)) goto error;
+
+    a = a->next;
+    post ("checking outlets");
+    if (!_check_portlist(a->w.w_list)) goto error;
+
+    a = a->next; post ("init program:"); pdp_list_print(a->w.w_list);
+    a = a->next; post ("loop program:"); pdp_list_print(a->w.w_list);
+
+
+    return 1;
+
+ error:
+    post("not a valid processor");
+    return 0;
+}
+
+/* this function maps an input symbol to a type (how to interpret the
+   anything message) and a stack index */
+static inline void pdp_forthproc_map_symbol(t_pdp_forthproc *x, t_symbol *s, 
+					    t_pdp_word_type *t, int *i)
+{
+}
+
+/* this function stores a new item in an index on the stack 
+   and executes the forth process if this is an active location */
+static inline void pdp_forthproc_write_stack(t_pdp_forthproc *x, int i, t_pdp_word w)
+{
+}
+
+static void pdp_forthproc_anything(t_pdp_forthproc *x, t_symbol *s, int argc, t_atom *argv)
+{
+    /* if the symbol's length is one character, it's a remapped input.
+       this instance contains a mapping from symbol->(type, stack entry) */
+
+    t_pdp_word_type type = a_undef;
+    t_pdp_word word = (t_pdp_word)0;
+    int index = -1;
+
+    /* determine what we got and where we need to put it */
+    pdp_forthproc_map_symbol(x, s, &type, &index); 
+    
+    /* interprete the anything message according to expected type.
+     and put the result in w */
+
+    /* TODO: put pd list <-> pdp list code in core (also in pdp_guile) */
+    switch(type){
+    case a_float:
+    case a_int:
+    case a_symbol:
+    case a_list:
+    case a_packet:
+    default:
+    post("got %s, and dunno what to do with it", s->s_name);
+	return;
+	
+    }
+
+    /* write the word to the stack 
+       and run the word if this was an active location */
+    pdp_forthproc_write_stack(x, index, word); 
+
+}
+
+static void pdp_forthproc_free(t_pdp_forthproc *x)
+{
+    pdp_tree_strip_packets(x->x_stack);
+    pdp_tree_free(x->x_stack);
+}
+
+t_class *pdp_forthproc_class;
+
+
+void *pdp_forthproc_new(t_symbol *s)
+{
+    t_pdp_forthproc *x;
+
+    /* get processor */
+    t_pdp_symbol *procname = pdp_gensym(s->s_name);
+    if (!procname->s_processor) return 0;
+
+    /* allocate */
+    x = (t_pdp_forthproc *)pd_new(pdp_forthproc_class);
+    x->x_processor = procname->s_processor;
+    post("pdp_forthproc %s", s->s_name);
+    pdp_list_print(x->x_processor);
+    
+
+    if (_check_processor(x->x_processor)) post ("processor OK");
+
+    /* create state stack */
+    x->x_stack = pdp_stack_new();
+    x->x_passive_stack = pdp_stack_new();
+    pdp_forth_execute_def(x->x_stack, x->x_processor->first->next->next->w.w_list);
+    pdp_forth_execute_def(x->x_passive_stack, x->x_processor->first->next->next->w.w_list);
+    post("initial stack:");
+    pdp_list_print(x->x_stack);
+
+
+    /* create inlets from description */
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_bang, gensym("A"));
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_bang, gensym("B"));
+    
+    
+
+    return (void *)x;
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_forthproc_setup(void)
+{
+    int i;
+    char iname[] = "i1";
+    char def[] = "(((0 1) (1 0)) ((0 0)) (ip ip 0.0) (dup down mix dup down down))";
+
+    /* create a test processor */
+    pdp_gensym("testproc")->s_processor = pdp_forth_compile_def(def);
+
+    /* create a standard pd class */
+    pdp_forthproc_class = class_new(gensym("pdp_forthproc"), (t_newmethod)pdp_forthproc_new,
+   	(t_method)pdp_forthproc_free, sizeof(t_pdp_forthproc), 0, A_SYMBOL, A_NULL);
+
+    /* add global message handler */
+    class_addanything(pdp_forthproc_class, (t_method)pdp_forthproc_anything);
+
+}
+
+#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_reg.c b/modules/generic/pdp_reg.c
new file mode 100644
index 0000000..8b07c14
--- /dev/null
+++ b/modules/generic/pdp_reg.c
@@ -0,0 +1,168 @@
+/*
+ *   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_pdp_symbol *s)
+{
+    int 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_pdp_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..4bac9d1
--- /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 = pdp_sym_pdp();
+    t_symbol *prc = pdp_sym_prc();
+    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 = pdp_sym_dpd();
+    t_symbol *acc = pdp_sym_acc();
+    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