Update of /cvsroot/pure-data/externals/tclpd
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4266/tclpd
Added Files:
COPYING Makefile README config.h list_change.tcl pdlib.tcl
tcl.i tcl_extras.cxx tcl_extras.h tcl_loader.cxx
Log Message:
first commit for tclpd external
--- NEW FILE: config.h ---
#ifndef __CONFIG_H
#define __CONFIG_H
#include <tcl.h>
#endif /* __CONFIG_H */
--- NEW FILE: pdlib.tcl ---
# TCL objectized library for PD api
# by Federico Ferri <mescalinum(a)gmail.com> - 2007
package provide pdlib 0.1
package require Tcl 8.5
set verbose 0
namespace eval ::pd {
proc add_inlet {self sel} {
if $::verbose {post [info level 0]}
variable _
switch -- $sel {
float {
set ptr [new_t_float]
lappend _($self:p_inlet) $ptr
lappend _($self:x_inlet) [floatinlet_new [tclpd_get_object $self] $ptr]
}
symbol {
set ptr [new_t_symbol]
lappend _($self:p_inlet) $ptr
lappend _($self:x_inlet) [symbolinlet_new [tclpd_get_object $self] $ptr]
}
default {
post "inlet creation error: unsupported selector: $sel"
return {}
}
}
return [lindex $_($self:x_inlet) end]
}
proc inlet {self n} {
if {$::verbose} {post [info level 0]}
if {$n <= 0} {return {}}
if {![info exists _($self:p_inlet)] ||
$n >= [llength $_($self:p_inlet)]} {
return -code error "pdlib: error: no such inlet: $n"
}
variable _
return [[lindex $_($self:p_inlet) [expr $n-1]] value]
}
proc add_outlet {self sel} {
if $::verbose {post [info level 0]}
variable _
switch -- $sel {
float {
lappend _($self:x_outlet) \
[outlet_new [tclpd_get_object $self] [gensym "float"]]
}
symbol {
lappend _($self:x_outlet) \
[outlet_new [tclpd_get_object $self] [gensym "symbol"]]
}
list {
lappend _($self:x_outlet) \
[outlet_new [tclpd_get_object $self] [gensym "list"]]
}
default {
return -code error \
"pdlib: outlet creation error: unsupported selector: $sel"
}
}
return [lindex $_($self:x_outlet) end]
}
proc outlet {self n sel args} {
if $::verbose {post [info level 0]}
variable _
set outlet [lindex $_($self:x_outlet) $n]
switch -- $sel {
float {
set v [lindex $args 0]
outlet_float $outlet $v
}
symbol {
set v [lindex $args 0]
outlet_symbol $outlet $v
}
list {
set v [lindex $args 0]
set sz [llength $v]
set aa [new_atom_array $sz]
for {set i 0} {$i < $sz} {incr i} {
set_atom_array $aa $i [lindex $v $i]
}
outlet_list $outlet [gensym "list"] $sz $aa
delete_atom_array $aa $sz
}
bang {
outlet_bang $outlet
}
default {
return -code error "pdlib: outlet: unknown selector: $sel"
}
}
}
proc create_iolets {cn self} {
if $::verbose {post [info level 0]}
variable class_db
variable _
set _($self:p_inlet) {}
set _($self:x_inlet) {}
set _($self:x_outlet) {}
for {set i 0} {$i < [llength $class_db($cn:d_inlet)]} {incr i} {
add_inlet $self [lindex $class_db($cn:d_inlet) $i]
}
for {set i 0} {$i < [llength $class_db($cn:d_outlet)]} {incr i} {
add_outlet $self [lindex $class_db($cn:d_outlet) $i]
}
}
proc call_classmethod {classname self sel args} {
if $::verbose {post [info level 0]}
set m "${classname}_${sel}"
if {[llength [info commands "::$m"]] > 0} {
return [$m $self {*}$args]
}
}
proc class {classname def} {
variable class_db
array set class_db {}
set class_db($classname:d_inlet) {}
set class_db($classname:d_outlet) {}
set def2 [regsub -all -line {#.*$} $def {}]
foreach {id arg} $def2 {
switch -- $id {
inlet {
lappend class_db($classname:d_inlet) $arg
}
outlet {
lappend class_db($classname:d_outlet) $arg
}
default {
proc ::${classname}_${id} {self args} \
"global _; [expand_macros $arg]"
}
}
}
proc ::$classname {self args} "
::pd::create_iolets $classname \$self
::pd::call_classmethod $classname \$self constructor {*}\$args
proc ::\$self {selector args} \"
::pd::call_classmethod $classname \$self \\\$selector {*}\\\$args
\"
return \$self
"
tclpd_class_new $classname 3
}
proc expand_macros {body} {
# from poe.tcl by Mathieu Bouchard
return [regsub -all @(\\\$?\[\\w\\?\]+) $body _(\$self:\\1)]
}
proc post {args} {
poststring2 [concat {*}$args]
}
proc assert= {a b} {
if {$a != $b} {
post "ASSERTION FAILED: \"$a\" == \"$b\""
return 0
}
return 1
}
proc args {} {
return [uplevel 1 "llength \$args"]
}
proc arg_float {n} {
set v [uplevel 1 "lindex \$args $n"]
foreach {selector value} $v {break}
assert= $selector "float"
return $value
}
proc arg_int {n} {
set v [uplevel 1 "lindex \$args $n"]
foreach {selector value} $v {break}
assert= $selector "float"
return [expr {int($value)}]
}
proc arg_symbol {n} {
set v [uplevel 1 "lindex \$args $n"]
foreach {selector value} $v {break}
assert= $selector "symbol"
return $value
}
}
--- NEW FILE: Makefile ---
#!/usr/bin/make
CPU=athlon-xp
CFLAGS += -I/usr/include -I. -xc++ -funroll-loops -fno-operator-names -fno-omit-frame-pointer -falign-functions=16 -mtune=$(CPU) -march=$(CPU) -Wall -Wno-unused -Wunused-variable -Wno-strict-aliasing -g -fPIC -I.
LDSOFLAGS += -lm -L/usr/lib -ltcl8.5 -L/usr/X11R6/lib
CXX = g++
OS = linux
LDSHARED = $(CXX) $(PDBUNDLEFLAGS)
all:: tcl
clean::
rm -f tcl.pd_linux tcl_wrap.cxx *.o *~
.SUFFIXES:
ifeq ($(OS),darwin)
PDSUF = .pd_darwin
PDBUNDLEFLAGS = -bundle -flat_namespace -undefined suppress
else
ifeq ($(OS),nt)
PDSUF = .dll
PDBUNDLEFLAGS = -shared
else
PDSUF = .pd_linux
PDBUNDLEFLAGS = -shared -rdynamic
endif
endif
tcl:: tcl.pd_linux
tcl.pd_linux: tcl_wrap.cxx tcl_extras.cxx tcl_loader.cxx tcl_extras.h Makefile
$(LDSHARED) $(CFLAGS) -DPDSUF=\"$(PDSUF)\" -o tcl$(PDSUF) \
tcl_wrap.cxx tcl_extras.cxx tcl_loader.cxx $(LDSOFLAGS)
tcl_wrap.cxx: tcl.i tcl_extras.h
swig -v -c++ -tcl -o tcl_wrap.cxx -I/usr/include -I/usr/local/include tcl.i
--- NEW FILE: list_change.tcl ---
source pdlib.tcl
pd::class list_change {
# inlet float
outlet list
# outlet float
constructor {
if [pd::args] {
set n [pd::arg_int 0]
for {set i 0} {$i < $n} {incr i} {
pd::add_inlet $self float
}
}
set @curlist {}
}
0_list {
set newlist $args
if {$newlist != $@curlist} {
pd::outlet $self 0 list $newlist
}
set @curlist $newlist
pd::outlet $self 1 float [pd::inlet $self 1]
}
0_bang {
pd::post "right value is: [pd::inlet $self 1]"
}
}
--- NEW FILE: tcl_extras.h ---
#include "m_pd.h"
#include <tcl.h>
typedef struct t_tcl {
t_object o;
Tcl_Obj *self;
} t_tcl;
void poststring2 (const char* s);
t_class* tclpd_class_new (char* name, int flags);
t_pd* tclpd_get_instance (const char* cereal);
t_object* tclpd_get_object (const char* cereal);
t_pd* tclpd_get_object_pd (const char* cereal);
int pd_to_tcl (t_atom* input, Tcl_Obj** output);
int tcl_to_pd (Tcl_Obj* input, t_atom* output);
extern Tcl_Interp *tcl_for_pd;
/* tcl loader */
typedef int (*loader_t)(t_canvas *canvas, char *classname);
extern "C" void sys_register_loader(loader_t loader);
extern "C" int sys_onloadlist(char *classname);
extern "C" void sys_putonloadlist(char *classname);
extern "C" void class_set_extern_dir(t_symbol *s);
extern "C" int tclpd_do_load_lib (t_canvas *canvas, char *objectname);
--- NEW FILE: COPYING ---
GNU GENERAL PUBLIC LICENSE
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END OF TERMS AND CONDITIONS
--- NEW FILE: README ---
Tcl for Pd
==========
this library allows you to to write externals for Pd using the
Tcl language. despite tot/toxy/widget externals, Tcl code ran
with tclpd actually runs in server (rather than gui process).
this is a PRE-ALPHA release: it means something work, but don't
expect to do serious things right now. also expect changes to
the Tcl API and around.
Data conversion between Tcl <=> Pd
==================================
In pd exists 'atoms'. An atom is a float, a symbol, a list item,
and such.
Tcl does not have data types. In Tcl everything is a string,
also numbers and lists. Just when something needs to be read as
number, then evaluation comes in.
This leads to loss of information about atom types. Imagine a
symbol '456' comes into tclpd, you won't know anymore if "456"
is a symbol or a float.
Here a little convention comes in action: in tclpd an atom gets
converted to a two-item list, where first item is atom type,
and second item is its value.
Some examples of conversion:
Pd: 456
Tcl: {float 456}
Pd: symbol foo
Tcl: {symbol foo}
Pd: list cat dog 123 456 weee
Tcl: {{symbol cat} {symbol dog} {float 123} {float 456} {symbol wee}}
Examples
========
I provided small examples.
after loading pd with option '-lib tcl', just type the filename
(minus the .tcl extension) to load the Tcl externals examples.
actually there is one simple example: list_change (behaves like
[change] object, but work with lists only)
examples make use of pdlib.tcl, a little API I wrote to make
things more cute.
you are free to not use it (just look in pdlib.tcl to know what
happens for real) or better: YOU ARE ENCOURAGED to write an OOP
system for writing externals with tclpd.
Authors
=======
* Federico Ferri <mescalinum(a)gmail.com>
* Mathieu Bouchard <matju(a)artengine.ca>
License
=======
See COPYING file provided with the package.
--- NEW FILE: tcl_extras.cxx ---
#include "tcl_extras.h"
#include <map>
#include <string>
using namespace std;
static long cereal=0;
map<string,t_class*> class_table;
map<string,t_pd*> object_table;
void poststring2 (const char *s) {post("%s",s);}
static void *tclpd_init (t_symbol *classsym, int ac, t_atom *at) {
const char *name = classsym->s_name;
t_class *qlass = class_table[string(name)];
t_tcl *self = (t_tcl *)pd_new(qlass);
char s[32];
sprintf(s,"pd%06lx",cereal++);
self->self = Tcl_NewStringObj(s,strlen(s));
object_table[string(s)] = (t_pd*)self;
Tcl_IncrRefCount(self->self);
Tcl_Obj *av[ac+2];
av[0] = Tcl_NewStringObj(name,strlen(name));
av[1] = self->self;
for(int i=0; i<ac; i++) {
if(pd_to_tcl(&at[i], &av[2+i]) == TCL_ERROR) {
post("tcl error: %s\n", Tcl_GetString(Tcl_GetObjResult(tcl_for_pd)));
pd_free((t_pd *)self);
return 0;
}
}
if (Tcl_EvalObjv(tcl_for_pd,ac+2,av,0) != TCL_OK) {
post("tcl error: %s\n", Tcl_GetString(Tcl_GetObjResult(tcl_for_pd)));
pd_free((t_pd *)self);
return 0;
}
return self;
}
t_pd* tclpd_get_instance(const char* cereal) {
return object_table[cereal];
}
t_object* tclpd_get_object(const char* cereal) {
t_tcl* x = (t_tcl*)tclpd_get_instance(cereal);
return &x->o;
}
t_pd* tclpd_get_object_pd(const char* cereal) {
t_object* o = tclpd_get_object(cereal);
return &o->ob_pd;
}
static void tclpd_anything (t_tcl *self, t_symbol *s, int ac, t_atom *at) {
/* proxy method */
Tcl_Obj *av[ac+2];
av[0] = self->self;
av[1] = Tcl_NewIntObj(0); // TODO: 0 -> outlet_number
Tcl_AppendToObj(av[1],"_",1);
Tcl_AppendToObj(av[1],s->s_name,strlen(s->s_name)); // selector
for(int i=0; i<ac; i++) {
if(pd_to_tcl(&at[i], &av[2+i]) == TCL_ERROR) {
post("tcl error: %s\n", Tcl_GetString(Tcl_GetObjResult(tcl_for_pd)));
return;
}
}
if (Tcl_EvalObjv(tcl_for_pd,ac+2,av,0) != TCL_OK)
post("tcl error: %s\n", Tcl_GetString(Tcl_GetObjResult(tcl_for_pd)));
}
static void tclpd_free (t_tcl *self) {
post("tclpd_free called");
}
t_class *tclpd_class_new (char *name, int flags) {
t_class *qlass = class_new(gensym(name), (t_newmethod) tclpd_init,
(t_method) tclpd_free, sizeof(t_tcl), flags, A_GIMME, A_NULL);
class_table[string(name)] = qlass;
class_addanything(qlass,tclpd_anything);
return qlass;
}
--- NEW FILE: tcl.i ---
%module tclpd
%include exception.i
%include cpointer.i
/* functions that are in m_pd.h but don't exist in modern versions of pd */
%ignore pd_getfilename;
%ignore pd_getdirname;
%ignore pd_anything;
%ignore class_parentwidget;
%ignore sys_isreadablefile;
%ignore garray_get;
%ignore c_extern;
%ignore c_addmess;
/* functions that are only in Miller's pd, not in devel_0_39/DesireData */
%ignore sys_idlehook;
/* functions that are not supported by DesireData */
%ignore class_getpropertiesfn;
%ignore class_setpropertiesfn;
%ignore class_getwidget;
%ignore class_setwidget;
%ignore sys_fontwidth;
%ignore sys_fontheight;
%ignore sys_queuegui;
%ignore sys_unqueuegui;
%ignore sys_pretendguibytes;
%ignore class_setparentwidget;
%ignore pd_getparentwidget;
%ignore getzbytes;
%ignore gfxstub_new;
%ignore gfxstub_deleteforkey;
%ignore glist_grab;
/* functions that we can't auto-wrap, because they have varargs */
%ignore post;
%ignore class_new;
/* end of ignore-list */
%include "m_pd.h"
%include "tcl_extras.h"
%{
#include "m_pd.h"
typedef t_atom t_atom_array;
%}
%name(outlet_list) EXTERN void outlet_list(t_outlet *x, t_symbol *s, int argc, t_atom_array *argv);
%pointer_class(t_float, t_float)
%pointer_class(t_symbol, t_symbol)
%{
#include "tcl_extras.h"
#include <unistd.h>
#include "config.h"
Tcl_Interp *tcl_for_pd = 0;
extern "C" SWIGEXPORT int Tclpd_SafeInit(Tcl_Interp *interp);
extern "C" void tcl_setup (void) {
/* Pd initialization */
if (tcl_for_pd) {
post("Tcl: already loaded");
return;
}
post("Tcl external v0.1-alpha - 09.2007");
post("by Federico Ferri <mescalinum(a)gmail.com>, Mathieu Bouchard <matju(a)artengine.ca>");
tcl_for_pd = Tcl_CreateInterp();
Tcl_Init(tcl_for_pd);
Tclpd_SafeInit(tcl_for_pd);
char *dirname = new char[242];
char *dirresult = new char[242];
/* nameresult is only a pointer in dirresult space so don't delete[] it. */
char *nameresult;
if (getcwd(dirname,242)<0) {post("AAAARRRRGGGGHHHH!"); exit(69);}
int fd=open_via_path(dirname,"gridflow/tcl",PDSUF,dirresult,&nameresult,242,1);
if (fd<0) fd=open_via_path(dirname, "tcl",PDSUF,dirresult,&nameresult,242,1);
if (fd>=0) {
close(fd);
} else {
post("%s was not found via the -path!","tcl"PDSUF);
}
Tcl_SetVar(tcl_for_pd,"DIR",dirresult,0);
Tcl_Eval(tcl_for_pd,"set auto_path [concat [list $DIR/.. $DIR $DIR/optional/rblti] $auto_path]");
if (Tcl_Eval(tcl_for_pd,"source $DIR/tcl.tcl") == TCL_OK)
post("Tcl: loaded %s/tcl.tcl", dirresult);
if (Tcl_Eval(tcl_for_pd,"source $env(HOME)/.pd.tcl") == TCL_OK)
post("Tcl: loaded ~/.pd.tcl");
delete[] dirresult;
delete[] dirname;
post("Tcl: registering tcl loader");
sys_register_loader(tclpd_do_load_lib);
}
int tcl_to_pd(Tcl_Obj *input, t_atom *output) {
int llength;
if(Tcl_ListObjLength(tcl_for_pd, input, &llength) == TCL_ERROR)
return TCL_ERROR;
if(llength != 2)
/*SWIG_exception(SWIG_ValueError, "Bad t_atom: expeting a 2-elements list.");*/
return TCL_ERROR;
int i;
Tcl_Obj* obj[2];
for(i = 0; i < 2; i++) Tcl_ListObjIndex(tcl_for_pd, input, i, &obj[i]);
char* argv0 = Tcl_GetStringFromObj(obj[0], 0);
if(strcmp(argv0, "float") == 0) {
double dbl;
if(Tcl_GetDoubleFromObj(tcl_for_pd, obj[1], &dbl) == TCL_ERROR)
return TCL_ERROR;
SETFLOAT(output, dbl);
} else if(strcmp(argv0, "symbol") == 0) {
SETSYMBOL(output, gensym(Tcl_GetStringFromObj(obj[1], 0)));
} else if(strcmp(argv0, "pointer") == 0) {
// TODO:
}
return TCL_OK;
}
int pd_to_tcl(t_atom *input, Tcl_Obj **output) {
Tcl_Obj* tcl_t_atom[2];
/*post("pd_to_tcl got an atom of type %d (%s)",
input->a_type, input->a_type == A_FLOAT ? "A_FLOAT" :
input->a_type == A_SYMBOL ? "A_SYMBOL" :
input->a_type == A_POINTER ? "A_POINTER" : "?");*/
switch (input->a_type) {
case A_FLOAT: {
tcl_t_atom[0] = Tcl_NewStringObj("float", -1);
tcl_t_atom[1] = Tcl_NewDoubleObj(input->a_w.w_float);
break;
}
case A_SYMBOL: {
tcl_t_atom[0] = Tcl_NewStringObj("symbol", -1);
tcl_t_atom[1] = Tcl_NewStringObj(input->a_w.w_symbol->s_name, strlen(input->a_w.w_symbol->s_name));
break;
}
case A_POINTER: {
tcl_t_atom[0] = Tcl_NewStringObj("pointer", -1);
tcl_t_atom[1] = Tcl_NewDoubleObj((long)input->a_w.w_gpointer);
break;
}
default: {
tcl_t_atom[0] = Tcl_NewStringObj("?", -1);
tcl_t_atom[1] = Tcl_NewStringObj("", 0);
break;
}
}
*output = Tcl_NewListObj(2, &tcl_t_atom[0]);
return TCL_OK;
}
%}
%typemap(in) t_atom * {
t_atom *a = (t_atom*)getbytes(sizeof(t_atom));
if(tcl_to_pd($input, a) == TCL_ERROR)
return TCL_ERROR;
$1 = a;
}
%typemap(freearg) t_atom * {
freebytes($1, sizeof(t_atom));
}
%typemap(out) t_atom* {
Tcl_Obj* res_obj;
if(pd_to_tcl($1, &res_obj) == TCL_ERROR)
return TCL_ERROR;
Tcl_SetObjResult(tcl_for_pd, res_obj);
}
/* helper functions for t_atom arrays */
%inline %{
t_atom_array *new_atom_array(int size) {
return (t_atom_array*)getbytes(size*sizeof(t_atom));
}
void delete_atom_array(t_atom_array *a, int size) {
freebytes(a, size*sizeof(t_atom));
}
t_atom* get_atom_array(t_atom_array *a, int index) {
return &a[index];
}
void set_atom_array(t_atom_array *a, int index, t_atom *n) {
memcpy(&a[index], n, sizeof(t_atom));
}
%}
--- NEW FILE: tcl_loader.cxx ---
#include "tcl_extras.h"
#include <string.h>
#include <unistd.h>
extern "C" int tclpd_do_load_lib(t_canvas *canvas, char *objectname)
{
char filename[MAXPDSTRING], dirbuf[MAXPDSTRING],
*classname, *nameptr;
int fd;
if (classname = strrchr(objectname, '/'))
classname++;
else classname = objectname;
if (sys_onloadlist(objectname))
{
post("%s: already loaded", objectname);
return (1);
}
/* try looking in the path for (objectname).(tcl) ... */
if ((fd = canvas_open(canvas, objectname, ".tcl",
dirbuf, &nameptr, MAXPDSTRING, 1)) >= 0)
goto gotone;
/* next try (objectname)/(classname).(sys_dllextent) ... */
strncpy(filename, objectname, MAXPDSTRING);
filename[MAXPDSTRING-2] = 0;
strcat(filename, "/");
strncat(filename, classname, MAXPDSTRING-strlen(filename));
filename[MAXPDSTRING-1] = 0;
if ((fd = canvas_open(canvas, filename, ".tcl",
dirbuf, &nameptr, MAXPDSTRING, 1)) >= 0)
goto gotone;
//post("Tcl_loader: tried and failed");
return (0);
gotone:
close(fd);
class_set_extern_dir(gensym(dirbuf));
/* rebuild the absolute pathname */
strncpy(filename, dirbuf, MAXPDSTRING);
filename[MAXPDSTRING-2] = 0;
strcat(filename, "/");
strncat(filename, nameptr, MAXPDSTRING-strlen(filename));
filename[MAXPDSTRING-1] = 0;
// load tcl:
char b[MAXPDSTRING+10];
snprintf(&b[0], MAXPDSTRING+10, "source %s", filename);
if (Tcl_Eval(tcl_for_pd,b) == TCL_OK)
post("Tcl_loader: loaded %s", b);
else
post("Tcl_loader: error trying to load %s", b);
class_set_extern_dir(&s_);
sys_putonloadlist(objectname);
return (1);
}
