[PD-cvs] externals/grill/dynext/src main.cpp,NONE,1.1

Update of /cvsroot/pure-data/externals/grill/dynext/src In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv23953/src

Added Files: main.cpp Log Message:

--- NEW FILE: main.cpp --- /*

dyn~ - dynamical object management for PD

Copyright (c)2003-2004 Thomas Grill (xovo@gmx.net) For information on usage and redistribution, and for a DISCLAIMER OF ALL WARRANTIES, see the file, "license.txt," in this distribution.

-- this is all a bit hacky, but hey, it's PD! --

*/

#include <flext.h>

#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406) #error You need at least flext version 0.4.6 #endif

#define DYN_VERSION "0.1.1pre"

#if FLEXT_SYS != FLEXT_SYS_PD #error Sorry, dyn~ works for PD only! #endif

#include "flinternal.h" #include <stdlib.h>

#ifdef _MSC_VER #pragma warning(disable: 4091 4244) #endif #include "g_canvas.h"

class dyn: public flext_dsp { FLEXT_HEADER_S(dyn,flext_dsp,setup) public: dyn(int argc,const t_atom *argv); virtual ~dyn();

void m_reset(); void m_reload(); // refresh objects/abstractions void m_newobj(int argc,const t_atom *argv); void m_newmsg(int argc,const t_atom *argv); void m_newtext(int argc,const t_atom *argv); void m_del(const t_symbol *n); void m_connect(int argc,const t_atom *argv) { ConnDis(true,argc,argv); } void m_disconnect(int argc,const t_atom *argv) { ConnDis(false,argc,argv); } void m_send(int argc,const t_atom *argv); void m_vis(bool vis);

protected:

static const t_symbol *k_obj,*k_msg,*k_text;

class obj { public: obj(unsigned long i,t_gobj *o): id(i),object(o),nxt(NULL) {}

void Add(obj *o);

unsigned long id; t_gobj *object; obj *nxt; } *root;

obj *Find(const t_symbol *n); t_glist *FindCanvas(const t_symbol *n); void Add(const t_symbol *n,t_gobj *o);

t_gobj *New(const t_symbol *kind,int _argc_,const t_atom *_argv_,bool add = true); void Delete(t_gobj *o);

void ConnDis(bool conn,int argc,const t_atom *argv);

virtual bool m_method_(int n,const t_symbol *s,int argc,const t_atom *argv); virtual void m_dsp(int n,t_signalvec const *insigs,t_signalvec const *outsigs); virtual void m_signal(int n,t_sample *const *insigs,t_sample *const *outsigs);

// proxy object class proxy { public: t_object obj; dyn *th; int n; t_sample *buf; t_sample defsig;

void init(dyn *t);

static void px_exit(proxy *px) { if(px->buf) FreeAligned(px->buf); } };

// proxy for inbound messages class proxyin: public proxy { public: t_outlet *outlet;

void Message(const t_symbol *s,int argc,const t_atom *argv) { typedmess((t_pd *)&obj,(t_symbol *)s,argc,(t_atom *)argv); }

void init(dyn *t,bool s);

static void px_method(proxyin *obj,const t_symbol *s,int argc,const t_atom *argv) { outlet_anything(obj->outlet,(t_symbol *)s,argc,(t_atom *)argv); }

static void dsp(proxyin *x, t_signal **sp); };

// proxy for outbound messages class proxyout: public proxy { public: int outlet;

void init(dyn *t,int o,bool s);

static void px_method(proxyout *obj,const t_symbol *s,int argc,const t_atom *argv) { obj->th->ToOutAnything(obj->outlet,s,argc,argv); }

static void dsp(proxyout *x, t_signal **sp); };

static t_class *pxin_class,*pxout_class; static t_class *pxins_class,*pxouts_class;

proxyin **pxin; proxyout **pxout;

static t_object *pxin_new() { return (t_object *)pd_new(pxin_class); } static t_object *pxins_new() { return (t_object *)pd_new(pxins_class); } static t_object *pxout_new() { return (t_object *)pd_new(pxout_class); } static t_object *pxouts_new() { return (t_object *)pd_new(pxouts_class); }

int m_inlets,s_inlets,m_outlets,s_outlets; t_canvas *canvas;

private: static void setup(t_classid c);

FLEXT_CALLBACK(m_reset) FLEXT_CALLBACK(m_reload) FLEXT_CALLBACK_V(m_newobj) FLEXT_CALLBACK_V(m_newmsg) FLEXT_CALLBACK_V(m_newtext) FLEXT_CALLBACK_S(m_del) FLEXT_CALLBACK_V(m_connect) FLEXT_CALLBACK_V(m_disconnect) FLEXT_CALLBACK_V(m_send) FLEXT_CALLBACK_B(m_vis)

static const t_symbol *sym_dot,*sym_dynsin,*sym_dynsout,*sym_dynin,*sym_dynout,*sym_dyncanvas; static const t_symbol *sym_vis,*sym_loadbang,*sym_dsp; };

FLEXT_NEW_DSP_V("dyn~",dyn)

t_class *dyn::pxin_class = NULL,*dyn::pxout_class = NULL; t_class *dyn::pxins_class = NULL,*dyn::pxouts_class = NULL;

const t_symbol *dyn::k_obj = NULL; const t_symbol *dyn::k_msg = NULL; const t_symbol *dyn::k_text = NULL;

const t_symbol *dyn::sym_dot = NULL; const t_symbol *dyn::sym_dynsin = NULL; const t_symbol *dyn::sym_dynsout = NULL; const t_symbol *dyn::sym_dynin = NULL; const t_symbol *dyn::sym_dynout = NULL; const t_symbol *dyn::sym_dyncanvas = NULL;

const t_symbol *dyn::sym_vis = NULL; const t_symbol *dyn::sym_loadbang = NULL; const t_symbol *dyn::sym_dsp = NULL;

void dyn::setup(t_classid c) { post(""); post("dyn~ %s - dynamic object management, (C)2003-04 Thomas Grill",DYN_VERSION); post("");

sym_dynsin = MakeSymbol("dyn_in~"); sym_dynsout = MakeSymbol("dyn_out~"); sym_dynin = MakeSymbol("dyn_in"); sym_dynout = MakeSymbol("dyn_out");

sym_dot = MakeSymbol("."); sym_dyncanvas = MakeSymbol(" dyn~-canvas ");

// set up proxy class for inbound messages pxin_class = class_new(const_cast<t_symbol *>(sym_dynin),(t_newmethod)pxin_new,(t_method)proxy::px_exit,sizeof(proxyin),0, A_NULL); add_anything(pxin_class,proxyin::px_method);

// set up proxy class for inbound signals pxins_class = class_new(const_cast<t_symbol *>(sym_dynsin),(t_newmethod)pxins_new,(t_method)proxy::px_exit,sizeof(proxyin),0, A_NULL); add_dsp(pxins_class,proxyin::dsp); CLASS_MAINSIGNALIN(pxins_class, proxyin, defsig);

// set up proxy class for outbound messages pxout_class = class_new(const_cast<t_symbol *>(sym_dynout),(t_newmethod)pxout_new,(t_method)proxy::px_exit,sizeof(proxyout),0, A_NULL); add_anything(pxout_class,proxyout::px_method);

// set up proxy class for outbound signals pxouts_class = class_new(const_cast<t_symbol *>(sym_dynsout),(t_newmethod)pxouts_new,(t_method)proxy::px_exit,sizeof(proxyout),0, A_NULL); add_dsp(pxouts_class,proxyout::dsp); CLASS_MAINSIGNALIN(pxouts_class, proxyout, defsig);

// set up dyn~ FLEXT_CADDMETHOD_(c,0,"reset",m_reset); FLEXT_CADDMETHOD_(c,0,"reload",m_reload); FLEXT_CADDMETHOD_(c,0,"newobj",m_newobj); FLEXT_CADDMETHOD_(c,0,"newmsg",m_newmsg); FLEXT_CADDMETHOD_(c,0,"newtext",m_newtext); FLEXT_CADDMETHOD_(c,0,"del",m_del); FLEXT_CADDMETHOD_(c,0,"conn",m_connect); FLEXT_CADDMETHOD_(c,0,"dis",m_disconnect); FLEXT_CADDMETHOD_(c,0,"send",m_send); FLEXT_CADDMETHOD_(c,0,"vis",m_vis);

// set up symbols k_obj = MakeSymbol("obj"); k_msg = MakeSymbol("msg"); k_text = MakeSymbol("text");

sym_vis = MakeSymbol("vis"); sym_loadbang = MakeSymbol("loadbang"); sym_dsp = MakeSymbol("dsp"); }

/* There must be a separate canvas for the dynamically created objects as some mechanisms in PD (like copy/cut/paste) get confused otherwise. On the other hand it seems to be possible to create objects without a canvas. They won't receive DSP processing, though, hence it's only possible for message objects. Problems arise when an object is not yet loaded... the canvas environment is then needed to load it.. if there is no canvas, PD currently crashes.

How to create the canvas: 1) via direct call to canvas_new() 2) a message to pd_canvasmaker con: does not return a pointer for the created canvas

There are two possibilities for the canvas 1) make a sub canvas to the one where dyn~ resides: pro: no problems with environment (abstractions are found and loaded correctly) 2) make a root canvas: pro: it will be in the canvas list per default, hence DSP is processed con: canvas environment must be created manually (is normally done by pd_canvasmaker if there is a directory set, which is again done somewhere else)

Enabling DSP on the subcanvas 1) send it a "dsp" message (see rabin~ by K.Czaja)... but, which signal vector should be taken? -> answer: NONE! (just send NULL) 2) add it to the list of _root_ canvases (these will be DSP-processed per default) (for this the canvas_addtolist and canvas_takefromlist functions are used) however, it's not clear if this can lead to problems since it is no root-canvas!

In all cases the 1)s have been chosen as the cleaner solution */

dyn::dyn(int argc,const t_atom *argv): root(NULL), canvas(NULL), pxin(NULL),pxout(NULL) { if(argc < 4) { post("%s - Syntax: dyn~ sig-ins msg-ins sig-outs msg-outs",thisName()); InitProblem(); return; }

s_inlets = GetAInt(argv[0]); m_inlets = GetAInt(argv[1]); s_outlets = GetAInt(argv[2]); m_outlets = GetAInt(argv[3]);

int i;

// --- make a sub-canvas for dyn~ ------

t_atom arg[6]; SetInt(arg[0],0); // xpos SetInt(arg[1],0); // ypos SetInt(arg[2],700); // xwidth SetInt(arg[3],520); // xwidth SetSymbol(arg[4],sym_dyncanvas); // canvas name SetInt(arg[5],0); // visible

canvas = canvas_new(NULL, NULL, 6, arg); // must do that.... canvas_unsetcurrent(canvas);

// --- create inlet proxies ------

pxin = new proxyin *[s_inlets+m_inlets]; for(i = 0; i < s_inlets+m_inlets; ++i) { bool sig = i < s_inlets;

t_atom lst[5]; SetInt(lst[0],i*100); SetInt(lst[1],10); SetSymbol(lst[2],sym_dot); SetSymbol(lst[3],sym__); SetSymbol(lst[4],sig?sym_dynsin:sym_dynin);

try { pxin[i] = (proxyin *)New(k_obj,5,lst,false); if(pxin[i]) pxin[i]->init(this,sig); } catch(...) { error("%s - Error creating inlet proxy",thisName()); } }

// --- create outlet proxies ------

pxout = new proxyout *[s_outlets+m_outlets]; for(i = 0; i < s_outlets+m_outlets; ++i) { bool sig = i < s_outlets;

t_atom lst[5]; SetInt(lst[0],i*100); SetInt(lst[1],500); SetSymbol(lst[2],sym_dot); SetSymbol(lst[3],sym__); SetSymbol(lst[4],sig?sym_dynsout:sym_dynout);

try { pxout[i] = (proxyout *)New(k_obj,5,lst,false); if(pxout[i]) pxout[i]->init(this,i,sig); } catch(...) { error("%s - Error creating outlet proxy",thisName()); } }

AddInSignal("Messages (newobj,newmsg,newtext,del,conn,dis)"); AddInSignal(s_inlets); AddInAnything(m_inlets); AddOutSignal(s_outlets); AddOutAnything(m_outlets); }

dyn::~dyn() { m_reset();

if(canvas) pd_free((t_pd *)canvas);

if(pxin) delete[] pxin; if(pxout) delete[] pxout; }

void dyn::obj::Add(obj *o) { if(nxt) nxt->Add(o); else nxt = o; }

dyn::obj *dyn::Find(const t_symbol *n) { unsigned long id = *(unsigned long *)n; obj *o; for(o = root; o && o->id != id; o = o->nxt) {} return o; }

t_glist *dyn::FindCanvas(const t_symbol *n) { if(n == sym_dot) return canvas; else { obj *o = Find(n); if(o && pd_class(&o->object->g_pd) == canvas_class) return (t_glist *)o->object; else return NULL; } }

void dyn::Add(const t_symbol *n,t_gobj *ob) { unsigned long id = *(unsigned long *)n; obj *o = new obj(id,ob); if(root) root->Add(o); else root = o; }

void dyn::Delete(t_gobj *o) { glist_delete(canvas,o); }

static t_gobj *GetLast(t_glist *gl) { t_gobj *go = gl->gl_list; if(go) while(go->g_next) go = go->g_next; return go; }

t_gobj *dyn::New(const t_symbol *kind,int _argc_,const t_atom *_argv_,bool add) { t_gobj *newest = NULL; const char *err = NULL; int argc = 0; t_atom *argv = NULL; const t_symbol *name = NULL,*canv = NULL; t_glist *glist = NULL;

if(_argc_ >= 4 && CanbeInt(_argv_[0]) && CanbeInt(_argv_[1]) && IsSymbol(_argv_[2]) && IsSymbol(_argv_[3])) { canv = GetSymbol(_argv_[2]); name = GetSymbol(_argv_[3]);

argc = _argc_-2; argv = new t_atom[argc]; SetInt(argv[0],GetAInt(_argv_[0])); SetInt(argv[1],GetAInt(_argv_[1])); for(int i = 0; i < argc-2; ++i) SetAtom(argv[i+2],_argv_[i+4]); } else if(_argc_ >= 3 && IsSymbol(_argv_[0]) && IsSymbol(_argv_[1])) { canv = GetSymbol(_argv_[0]); name = GetSymbol(_argv_[1]);

argc = _argc_; argv = new t_atom[argc]; // random position if not given SetInt(argv[0],rand()%600); SetInt(argv[1],50+rand()%400); for(int i = 0; i < argc-2; ++i) SetAtom(argv[i+2],_argv_[i+2]); }

if(argv) { if(add && (!name || name == sym_dot || Find(name))) err = "Object name is already present"; else if(!canv || !(glist = FindCanvas(canv))) err = "Canvas could not be found"; else { // set selected canvas as current canvas_setcurrent(glist);

t_gobj *last = GetLast(glist); pd_typedmess((t_pd *)glist,(t_symbol *)kind,argc,argv); newest = GetLast(glist);

if(kind == k_obj) { t_object *o = (t_object *)pd_newest();

if(!o) { // PD creates a text object when the intended object could not be created t_gobj *trash = GetLast(glist);

// Test for newly created object.... if(trash && last != trash) { // Delete it! glist_delete(glist,trash); } newest = NULL; } else newest = &o->te_g; }

// look for latest created object if(newest) { // add to database if(add) Add(name,newest);

// send loadbang (if it is an abstraction) if(pd_class(&newest->g_pd) == canvas_class) { // hide the sub-canvas pd_vmess((t_pd *)newest,const_cast<t_symbol *>(sym_vis),"i",0);

// loadbang the abstraction pd_vmess((t_pd *)newest,const_cast<t_symbol *>(sym_loadbang),""); }

// restart dsp - that's necessary because ToCanvas is called manually canvas_update_dsp(); } else if(!err) err = "Could not create object";

// pop the current canvas canvas_unsetcurrent(glist); }

delete[] argv; } else if(!err) err = "new name object [args]";

if(err) throw err;

return newest; }

void dyn::m_reset() { obj *o = root; while(o) { Delete(o->object); obj *n = o->nxt; delete o; o = n; } root = NULL; }

void dyn::m_vis(bool vis) { canvas_vis(canvas,vis?1:0); }

void dyn::m_reload() { post("%s - reload: not implemented yet",thisName()); }

void dyn::m_newobj(int argc,const t_atom *argv) { try { New(k_obj,argc,argv); } catch(const char *err) { post("%s - %s",thisName(),err); } catch(...) { post("%s - unknown error",thisName()); } }

void dyn::m_newmsg(int argc,const t_atom *argv) { try { New(k_msg,argc,argv); } catch(const char *err) { post("%s - %s",thisName(),err); } catch(...) { post("%s - unknown error",thisName()); } }

void dyn::m_newtext(int argc,const t_atom *argv) { try { New(k_text,argc,argv); } catch(const char *err) { post("%s - %s",thisName(),err); } catch(...) { post("%s - unknown error",thisName()); } }

void dyn::m_del(const t_symbol *n) { unsigned long id = *(unsigned long *)n;

obj *p = NULL,*o = root; for(; o && o->id != id; p = o,o = o->nxt) {}

if(o) { if(p) p->nxt = o->nxt; else root = o->nxt;

Delete(o->object); delete o; } else post("%s - del: object not found",thisName()); }

void dyn::ConnDis(bool conn,int argc,const t_atom *argv) { const t_symbol *s_n = NULL,*d_n = NULL; int s_x,d_x;

if(argc == 4 && IsSymbol(argv[0]) && CanbeInt(argv[1]) && IsSymbol(argv[2]) && CanbeInt(argv[3])) { s_n = GetSymbol(argv[0]); s_x = GetAInt(argv[1]); d_n = GetSymbol(argv[2]); d_x = GetAInt(argv[3]); } else if(argc == 3 && CanbeInt(argv[0]) && IsSymbol(argv[1]) && CanbeInt(argv[2])) { s_n = NULL; s_x = GetAInt(argv[0]); d_n = GetSymbol(argv[1]); d_x = GetAInt(argv[2]); } else if(argc == 3 && IsSymbol(argv[0]) && CanbeInt(argv[1]) && CanbeInt(argv[2])) { s_n = GetSymbol(argv[0]); s_x = GetAInt(argv[1]); d_n = NULL; d_x = GetAInt(argv[2]); } else if(argc == 2 && CanbeInt(argv[0]) && CanbeInt(argv[1])) { // direct connection from proxy-in to proxy-out (for testing above all....) s_n = NULL; s_x = GetAInt(argv[0]); d_n = NULL; d_x = GetAInt(argv[1]); } else { post("%s - connect: [src] srcslot [dst] dstslot",thisName()); return; }

t_text *s_obj,*d_obj; if(s_n) { obj *s_o = Find(s_n); if(!s_o) { post("%s - connect: source "%s" not found",thisName(),GetString(s_n)); return; } s_obj = (t_text *)s_o->object; } else if(s_x < 0 && s_x >= s_inlets+m_inlets) { post("%s - connect: inlet %i out of range (0..%i)",thisName(),s_x,s_inlets+m_inlets-1); return; } else { s_obj = &pxin[s_x]->obj; s_x = 0; // always 0 for proxy }

if(d_n) { obj *d_o = Find(d_n); if(!d_o) { post("%s - connect: destination "%s" not found",thisName(),GetString(d_n)); return; } d_obj = (t_text *)d_o->object; } else if(d_x < 0 && d_x >= s_outlets+m_outlets) { post("%s - connect: outlet %i out of range (0..%i)",thisName(),d_x,s_outlets+m_outlets-1); return; } else { d_obj = &pxout[d_x]->obj; d_x = 0; // always 0 for proxy }

#ifndef NO_VIS int s_oix = canvas_getindex(canvas,&s_obj->te_g); int d_oix = canvas_getindex(canvas,&d_obj->te_g); #endif

if(conn) { if(!canvas_isconnected(canvas,(t_text *)s_obj,s_x,(t_text *)d_obj,d_x)) { #ifdef NO_VIS if(!obj_connect(s_obj, s_x, d_obj, d_x)) post("%s - connect: connection could not be made",thisName()); #else canvas_connect(canvas,s_oix,s_x,d_oix,d_x); #endif } } else { #ifdef NO_VIS obj_disconnect(s_obj, s_x, d_obj, d_x); #else canvas_disconnect(canvas,s_oix,s_x,d_oix,d_x); #endif } }

bool dyn::m_method_(int n,const t_symbol *s,int argc,const t_atom *argv) { if(n == 0) // messages into inlet 0 are for dyn~ return flext_base::m_method_(n,s,argc,argv); else { // all other messages are forwarded to proxies (and connected objects) pxin[n-1]->Message(s,argc,argv); return true; } }

void dyn::m_send(int argc,const t_atom *argv) { if(argc < 2 || !IsSymbol(argv[0])) post("%s - Syntax: send name message [args]",thisName()); else { obj *o = Find(GetSymbol(argv[0])); if(!o) post("%s - send: object "%s" not found",thisName(),GetString(argv[0])); else pd_forwardmess((t_pd *)o->object,argc-1,(t_atom *)argv+1); } }

void dyn::proxy::init(dyn *t) { th = t; n = 0,buf = NULL; defsig = 0; }

void dyn::proxyin::dsp(proxyin *x,t_signal **sp) { int n = sp[0]->s_n; if(n != x->n) { // if vector size has changed make new buffer if(x->buf) FreeAligned(x->buf); x->buf = (t_sample *)NewAligned(sizeof(t_sample)*(x->n = n)); } dsp_add_copy(x->buf,sp[0]->s_vec,n); }

void dyn::proxyin::init(dyn *t,bool s) { proxy::init(t); outlet = outlet_new(&obj,s?&s_signal:&s_anything); }

void dyn::proxyout::dsp(proxyout *x,t_signal **sp) { int n = sp[0]->s_n; if(n != x->n) { // if vector size has changed make new buffer if(x->buf) FreeAligned(x->buf); x->buf = (t_sample *)NewAligned(sizeof(t_sample)*(x->n = n)); } dsp_add_copy(sp[0]->s_vec,x->buf,n); }

void dyn::proxyout::init(dyn *t,int o,bool s) { proxy::init(t); outlet = o; if(s) outlet_new(&obj,&s_signal); }

void dyn::m_dsp(int n,t_signalvec const *insigs,t_signalvec const *outsigs) { // add sub canvas to dsp list (no signal vector to borrow from .. set it to NULL) mess1((t_pd *)canvas,const_cast<t_symbol *>(sym_dsp),NULL);

flext_dsp::m_dsp(n,insigs,outsigs); }

void dyn::m_signal(int n,t_sample *const *insigs,t_sample *const *outsigs) { int i; for(i = 0; i < s_inlets; ++i) if(pxin[i]->buf) CopySamples(pxin[i]->buf,insigs[i+1],n); for(i = 0; i < s_outlets; ++i) if(pxout[i]->buf) CopySamples(outsigs[i],pxout[i]->buf,n); }