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@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 Version 2, June 1991

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--- 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@gmail.com * Mathieu Bouchard matju@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@gmail.com, Mathieu Bouchard matju@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); }