mv *.cxx *.c

svn path=/trunk/externals/loaders/tclpd/; revision=15442

1 files changed, 446 insertions, 0 deletions

diff --git a/tcl_class.c b/tcl_class.c
new file mode 100644
index 0000000..25af02d
--- /dev/null
+++ b/tcl_class.c
@@ -0,0 +1,446 @@
+#include "tcl_extras.h"
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define CLASS_TABLE_SIZE (1 << 7)
+#define OBJECT_TABLE_SIZE (1 << 8)
+
+static inline uint32_t hash_str(const char *s)
+{
+	const unsigned char *p = (const unsigned char *)s;
+	uint32_t h = 5381;
+
+	while (*p) {
+		h *= 33;
+		h ^= *p++;
+	}
+
+	return h ^ (h >> 16);
+}
+
+typedef struct list_node
+{
+	const char* k;
+	void* v;
+	struct list_node* next;
+} list_node_t;
+
+static inline list_node_t* list_add(list_node_t* head, const char* k, void* v)
+{
+	list_node_t* n = (list_node_t*)malloc(sizeof(list_node_t));
+	n->next = head;
+	n->k = k;
+	n->v = v;
+	return n;
+}
+
+static inline list_node_t* list_remove(list_node_t* head, const char* k)
+{
+	list_node_t* tmp;
+
+	// head remove
+	while(head && strcmp(head->k, k) == 0)
+	{
+		tmp = head;
+		head = head->next;
+		free(tmp);
+	}
+
+	list_node_t* p = head;
+
+	// normal (non-head) remove
+	while(p->next)
+	{
+		if(strcmp(p->next->k, k) == 0)
+		{
+			tmp = p->next;
+			p->next = p->next->next;
+			free(tmp);
+			continue;
+		}
+		p = p->next;
+	}
+
+	return head;
+}
+
+static inline void* list_get(list_node_t* head, const char* k)
+{
+	while(head)
+	{
+		if(strcmp(head->k, k) == 0)
+			return head->v;
+		head = head->next;
+	}
+	return (void*)0;
+}
+
+static inline void list_print(list_node_t* head)
+{
+	if(!head)
+	{
+		printf("NULL\n");
+		return;
+	}
+	while(head)
+	{
+		printf("%s=x%8.8X", head->k, head->v);
+		if(head->next) printf(", ");
+		head = head->next;
+	}
+	printf("\n");
+}
+
+
+static list_node_t* class_tbl[CLASS_TABLE_SIZE];
+static list_node_t* object_tbl[OBJECT_TABLE_SIZE];
+
+static inline void class_table_add(const char* name, t_class* c)
+{
+	uint32_t h = hash_str(name) % CLASS_TABLE_SIZE;
+	class_tbl[h] = list_add(class_tbl[h], name, (void*)c);
+}
+
+static inline void class_table_remove(const char* name)
+{
+	uint32_t h = hash_str(name) % CLASS_TABLE_SIZE;
+	class_tbl[h] = list_remove(class_tbl[h], name);
+}
+
+static inline t_class* class_table_get(const char* name)
+{
+	uint32_t h = hash_str(name) % CLASS_TABLE_SIZE;
+	return (t_class*)list_get(class_tbl[h], name);
+}
+
+static inline void object_table_add(const char* name, t_pd* o)
+{
+	uint32_t h = hash_str(name) % OBJECT_TABLE_SIZE;
+	object_tbl[h] = list_add(object_tbl[h], name, (void*)o);
+}
+
+static inline void object_table_remove(const char* name)
+{
+	uint32_t h = hash_str(name) % OBJECT_TABLE_SIZE;
+	object_tbl[h] = list_remove(object_tbl[h], name);
+}
+
+static inline t_pd* object_table_get(const char* name)
+{
+	uint32_t h = hash_str(name) % OBJECT_TABLE_SIZE;
+	return (t_pd*)list_get(object_tbl[h], name);
+}
+
+static unsigned long objectSequentialId = 0;
+
+static list_node_t* class_tbl[CLASS_TABLE_SIZE];
+static list_node_t* object_tbl[OBJECT_TABLE_SIZE];
+
+/* set up the class that handles loading of tcl classes */
+t_class* tclpd_class_new(const char* name, int flags) {
+    t_class* c = class_new(gensym(name), (t_newmethod)tclpd_new,
+        (t_method)tclpd_free, sizeof(t_tcl), flags, A_GIMME, A_NULL);
+
+    if(!class_table_get(name))
+	    class_table_add(name, c);
+
+    class_addanything(c, tclpd_anything);
+    class_addmethod(c, (t_method)tclpd_loadbang, gensym("loadbang"), A_NULL);
+    
+    // always set save function. it will call the default if
+    // none exists in tcl space.
+    class_setsavefn(c, tclpd_save);
+
+    // check if properties function exists in tcl space.
+    char buf[80];
+    int res_i;
+    snprintf(buf, 80, "llength [info procs ::%s_object_properties]", name);
+    if(Tcl_Eval(tcl_for_pd, buf) == TCL_OK) {
+        Tcl_Obj* res = Tcl_GetObjResult(tcl_for_pd);
+        if(Tcl_GetIntFromObj(tcl_for_pd, res, &res_i) == TCL_OK) {
+            if(res_i) {
+                class_setpropertiesfn(c, tclpd_properties);
+            }
+#ifdef DEBUG
+            else {
+                post("tclpd_class_new: propertiesfn does not exist", buf);
+            }
+#endif
+        }
+#ifdef DEBUG
+        else {
+            post("tclpd_class_new: Tcl_GetIntFromObj returned an error");
+        }
+#endif
+    }
+#ifdef DEBUG
+    else {
+        post("tclpd_class_new: [info procs] returned an error");
+    }
+#endif
+    return c;
+}
+
+t_class* tclpd_guiclass_new(const char* name, int flags) {
+    t_class* c = tclpd_class_new(name, flags);
+    t_widgetbehavior* wb = (t_widgetbehavior*)getbytes(sizeof(t_widgetbehavior));
+    wb->w_getrectfn = tclpd_guiclass_getrect;
+    wb->w_displacefn = tclpd_guiclass_displace;
+    wb->w_selectfn = tclpd_guiclass_select;
+    wb->w_activatefn = NULL;
+    wb->w_deletefn = tclpd_guiclass_delete;
+    wb->w_visfn = tclpd_guiclass_vis;
+    wb->w_clickfn = tclpd_guiclass_click;
+    class_setwidget(c, wb);
+    return c;
+}
+
+t_tcl* tclpd_new(t_symbol* classsym, int ac, t_atom* at) {
+    // lookup in class table
+    const char* name = classsym->s_name;
+    t_class* qlass = class_table_get(name);
+
+    t_tcl* x = (t_tcl*)pd_new(qlass);
+    x->ninlets = 1 /* qlass->c_firstin ??? */;
+
+    x->classname = Tcl_NewStringObj(name, -1);
+    Tcl_IncrRefCount(x->classname);
+
+    char s[64];
+    snprintf(s, 64, "tclpd:%s:x%lx", name, objectSequentialId++);
+    x->self = Tcl_NewStringObj(s, -1);
+    Tcl_IncrRefCount(x->self);
+
+    x->x_glist = (t_glist*)canvas_getcurrent();
+
+    // store in object table (for later lookup)
+    if(!object_table_get(s))
+	    object_table_add(s, x);
+
+    // build constructor command
+    Tcl_Obj *av[ac+2]; InitArray(av, ac+2, NULL);
+    av[0] = x->classname;
+    Tcl_IncrRefCount(av[0]);
+    av[1] = x->self;
+    Tcl_IncrRefCount(av[1]);
+    for(int i=0; i<ac; i++) {
+        if(pd_to_tcl(&at[i], &av[2+i]) == TCL_ERROR) {
+#ifdef DEBUG
+            post("pd_to_tcl: tclpd_new: failed during conversion. check memory leaks!");
+#endif
+            goto error;
+        }
+    }
+    // call constructor
+    if(Tcl_EvalObjv(tcl_for_pd, ac+2, av, 0) != TCL_OK) {
+        goto error;
+    }
+
+    for(int i = 0; i < (ac+2); i++)
+        Tcl_DecrRefCount(av[i]);
+
+    return x;
+
+error:
+    tclpd_interp_error(TCL_ERROR);
+    for(int i = 0; i < (ac+2); i++) {
+        if(!av[i]) break;
+        Tcl_DecrRefCount(av[i]);
+    }
+    pd_free((t_pd*)x);
+    return 0;
+}
+
+void tclpd_free(t_tcl* x) {
+    // build destructor command
+    Tcl_Obj *sym = Tcl_NewStringObj(Tcl_GetStringFromObj(x->classname, NULL), -1);
+    Tcl_AppendToObj(sym, "_destructor", -1);
+    Tcl_Obj *av[2]; InitArray(av, 2, NULL);
+    av[0] = sym;
+    Tcl_IncrRefCount(av[0]);
+    av[1] = x->self;
+    Tcl_IncrRefCount(av[1]);
+    // call destructor
+    if(Tcl_EvalObjv(tcl_for_pd, 2, av, 0) != TCL_OK) {
+#ifdef DEBUG
+        post("tclpd_free: failed");
+#endif
+    }
+    Tcl_DecrRefCount(av[0]);
+    Tcl_DecrRefCount(av[1]);
+
+    Tcl_DecrRefCount(x->self);
+    Tcl_DecrRefCount(x->classname);
+#ifdef DEBUG
+    post("tclpd_free called");
+#endif
+}
+
+void tclpd_anything(t_tcl* x, t_symbol* s, int ac, t_atom* at) {
+    tclpd_inlet_anything(x, 0, s, ac, at);
+}
+
+void tclpd_inlet_anything(t_tcl* x, int inlet, t_symbol* s, int ac, t_atom* at) {
+    // proxy method - format: <self> <inlet#> <selector> ...
+    Tcl_Obj* av[ac+3]; InitArray(av, ac+3, NULL);
+    int result;
+
+    av[0] = x->self;
+    Tcl_IncrRefCount(av[0]);
+    av[1] = Tcl_NewIntObj(inlet);
+    Tcl_IncrRefCount(av[1]);
+    av[2] = Tcl_NewStringObj(s->s_name, -1);
+    Tcl_IncrRefCount(av[2]);
+    for(int i=0; i<ac; i++) {
+        if(pd_to_tcl(&at[i], &av[3+i]) == TCL_ERROR) {
+#ifdef DEBUG
+            post("pd_to_tcl: tclpd_inlet_anything: failed during conversion. check memory leaks!");
+#endif
+            goto error;
+        }
+    }
+    result = Tcl_EvalObjv(tcl_for_pd, ac+3, av, 0);
+    if(result != TCL_OK) {
+        goto error;
+    }
+
+    for(int i=0; i < (ac+3); i++)
+        Tcl_DecrRefCount(av[i]);
+
+    // OK
+    return;
+
+error:
+    tclpd_interp_error(TCL_ERROR);
+    for(int i=0; i < (ac+3); i++) {
+        if(!av[i]) break;
+        Tcl_DecrRefCount(av[i]);
+    }
+    return;
+}
+
+void tclpd_loadbang(t_tcl* x) {
+    tclpd_inlet_anything(x, 0, gensym("loadbang"), 0, NULL);
+}
+
+/* Tcl glue: */
+
+t_proxyinlet* tclpd_add_proxyinlet(t_tcl* x) {
+    t_proxyinlet* proxy = (t_proxyinlet*)pd_new(proxyinlet_class);
+    proxyinlet_init(proxy);
+    proxy->target = x;
+    proxy->ninlet = x->ninlets++;
+    inlet_new(&x->o, &proxy->obj.ob_pd, 0, 0);
+    return proxy;
+}
+
+t_tcl* tclpd_get_instance(const char* objectSequentialId) {
+    return (t_tcl*)object_table_get(objectSequentialId);
+}
+
+t_pd* tclpd_get_instance_pd(const char* objectSequentialId) {
+    return (t_pd*)object_table_get(objectSequentialId);
+}
+
+t_object* tclpd_get_object(const char* objectSequentialId) {
+    t_tcl* x = tclpd_get_instance(objectSequentialId);
+    return &x->o;
+}
+
+t_pd* tclpd_get_object_pd(const char* objectSequentialId) {
+    t_object* o = tclpd_get_object(objectSequentialId);
+    return &o->ob_pd;
+}
+
+t_glist* tclpd_get_glist(const char* objectSequentialId) {
+    t_tcl* x = tclpd_get_instance(objectSequentialId);
+    return x->x_glist;
+}
+
+t_symbol* null_symbol() {
+    return (t_symbol*)0;
+}
+
+void poststring2 (const char *s) {
+    post("%s", s);
+}
+
+void tclpd_save(t_gobj* z, t_binbuf* b) {
+    Tcl_Obj* av[3]; InitArray(av, 3, NULL);
+    Tcl_Obj* res;
+
+    t_tcl* x = (t_tcl*)z;
+
+    av[0] = x->self;
+    Tcl_IncrRefCount(av[0]);
+    av[1] = Tcl_NewStringObj("object", -1);
+    Tcl_IncrRefCount(av[1]);
+    av[2] = Tcl_NewStringObj("save", -1);
+    Tcl_IncrRefCount(av[2]);
+    int result = Tcl_EvalObjv(tcl_for_pd, 3, av, 0);
+    if(result == TCL_OK) {
+        res = Tcl_GetObjResult(tcl_for_pd);
+        Tcl_IncrRefCount(res);
+        int objc;
+        Tcl_Obj** objv;
+        result = Tcl_ListObjGetElements(tcl_for_pd, res, &objc, &objv);
+        if(result == TCL_OK) {
+            if(objc == 0 && objv == NULL) {
+                // call default savefn
+                text_save(z, b);
+            } else {
+                // do custom savefn
+                int i;
+                double tmp;
+                for(i = 0; i < objc; i++) {
+                    result = Tcl_GetDoubleFromObj(tcl_for_pd, objv[i], &tmp);
+                    if(result == TCL_OK) {
+                        binbuf_addv(b, "f", (t_float)tmp);
+                    } else {
+                        char* tmps = Tcl_GetStringFromObj(objv[i], NULL);
+                        if(!strcmp(tmps, ";")) {
+                            binbuf_addv(b, ";");
+                        } else {
+                            binbuf_addv(b, "s", gensym(tmps));
+                        }
+                    }
+                }
+            }
+        } else {
+            pd_error(x, "Tcl: object save: failed");
+            tclpd_interp_error(result);
+        }
+        Tcl_DecrRefCount(res);
+    } else {
+        pd_error(x, "Tcl: object save: failed");
+        tclpd_interp_error(result);
+    }
+    Tcl_DecrRefCount(av[0]);
+    Tcl_DecrRefCount(av[1]);
+    Tcl_DecrRefCount(av[2]);
+}
+
+void tclpd_properties(t_gobj* z, t_glist* owner) {
+    Tcl_Obj* av[3]; InitArray(av, 3, NULL);
+    Tcl_Obj* res;
+
+    t_tcl* x = (t_tcl*)z;
+
+    av[0] = x->self;
+    Tcl_IncrRefCount(av[0]);
+    av[1] = Tcl_NewStringObj("object", -1);
+    Tcl_IncrRefCount(av[1]);
+    av[2] = Tcl_NewStringObj("properties", -1);
+    Tcl_IncrRefCount(av[2]);
+    int result = Tcl_EvalObjv(tcl_for_pd, 3, av, 0);
+    if(result != TCL_OK) {
+        //res = Tcl_GetObjResult(tcl_for_pd);
+        pd_error(x, "Tcl: object properties: failed");
+        tclpd_interp_error(result);
+    }
+    Tcl_DecrRefCount(av[0]);
+    Tcl_DecrRefCount(av[1]);
+    Tcl_DecrRefCount(av[2]);
+}