godot/modules/gdnative/gdnative/gdnative.cpp

194 lines
7.5 KiB
C++

/*************************************************************************/
/* gdnative.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "gdnative/gdnative.h"
#include "core/class_db.h"
#include "core/engine.h"
#include "core/error_macros.h"
#include "core/global_constants.h"
#include "core/os/os.h"
#include "core/variant.h"
#include "modules/gdnative/gdnative.h"
#ifdef __cplusplus
extern "C" {
#endif
void GDAPI godot_object_destroy(godot_object *p_o) {
memdelete((Object *)p_o);
}
// Singleton API
godot_object GDAPI *godot_global_get_singleton(char *p_name) {
return (godot_object *)Engine::get_singleton()->get_singleton_object(String(p_name));
} // result shouldn't be freed
// MethodBind API
godot_method_bind GDAPI *godot_method_bind_get_method(const char *p_classname, const char *p_methodname) {
MethodBind *mb = ClassDB::get_method(StringName(p_classname), StringName(p_methodname));
// MethodBind *mb = ClassDB::get_method("Node", "get_name");
return (godot_method_bind *)mb;
}
void GDAPI godot_method_bind_ptrcall(godot_method_bind *p_method_bind, godot_object *p_instance, const void **p_args, void *p_ret) {
MethodBind *mb = (MethodBind *)p_method_bind;
Object *o = (Object *)p_instance;
mb->ptrcall(o, p_args, p_ret);
}
godot_variant GDAPI godot_method_bind_call(godot_method_bind *p_method_bind, godot_object *p_instance, const godot_variant **p_args, const int p_arg_count, godot_variant_call_error *p_call_error) {
MethodBind *mb = (MethodBind *)p_method_bind;
Object *o = (Object *)p_instance;
const Variant **args = (const Variant **)p_args;
godot_variant ret;
godot_variant_new_nil(&ret);
Variant *ret_val = (Variant *)&ret;
Variant::CallError r_error;
*ret_val = mb->call(o, args, p_arg_count, r_error);
if (p_call_error) {
p_call_error->error = (godot_variant_call_error_error)r_error.error;
p_call_error->argument = r_error.argument;
p_call_error->expected = (godot_variant_type)r_error.expected;
}
return ret;
}
godot_class_constructor GDAPI godot_get_class_constructor(const char *p_classname) {
ClassDB::ClassInfo *class_info = ClassDB::classes.getptr(StringName(p_classname));
if (class_info)
return (godot_class_constructor)class_info->creation_func;
return NULL;
}
godot_dictionary GDAPI godot_get_global_constants() {
godot_dictionary constants;
godot_dictionary_new(&constants);
Dictionary *p_constants = (Dictionary *)&constants;
const int constants_count = GlobalConstants::get_global_constant_count();
for (int i = 0; i < constants_count; ++i) {
const char *name = GlobalConstants::get_global_constant_name(i);
int value = GlobalConstants::get_global_constant_value(i);
(*p_constants)[name] = value;
}
return constants;
}
// System functions
void GDAPI godot_register_native_call_type(const char *p_call_type, native_call_cb p_callback) {
GDNativeCallRegistry::get_singleton()->register_native_call_type(StringName(p_call_type), p_callback);
}
void GDAPI *godot_alloc(int p_bytes) {
return memalloc(p_bytes);
}
void GDAPI *godot_realloc(void *p_ptr, int p_bytes) {
return memrealloc(p_ptr, p_bytes);
}
void GDAPI godot_free(void *p_ptr) {
memfree(p_ptr);
}
void GDAPI godot_print_error(const char *p_description, const char *p_function, const char *p_file, int p_line) {
_err_print_error(p_function, p_file, p_line, p_description, ERR_HANDLER_ERROR);
}
void GDAPI godot_print_warning(const char *p_description, const char *p_function, const char *p_file, int p_line) {
_err_print_error(p_function, p_file, p_line, p_description, ERR_HANDLER_WARNING);
}
void GDAPI godot_print(const godot_string *p_message) {
print_line(*(String *)p_message);
}
void _gdnative_report_version_mismatch(const godot_object *p_library, const char *p_ext, godot_gdnative_api_version p_want, godot_gdnative_api_version p_have) {
String message = "Error loading GDNative file ";
GDNativeLibrary *library = (GDNativeLibrary *)p_library;
message += library->get_current_library_path() + ": Extension \"" + p_ext + "\" can't be loaded.\n";
Dictionary versions;
versions["have_major"] = p_have.major;
versions["have_minor"] = p_have.minor;
versions["want_major"] = p_want.major;
versions["want_minor"] = p_want.minor;
message += String("Got version {have_major}.{have_minor} but needs {want_major}.{want_minor}!").format(versions);
_err_print_error("gdnative_init", library->get_current_library_path().utf8().ptr(), 0, message.utf8().ptr());
}
void _gdnative_report_loading_error(const godot_object *p_library, const char *p_what) {
String message = "Error loading GDNative file ";
GDNativeLibrary *library = (GDNativeLibrary *)p_library;
message += library->get_current_library_path() + ": " + p_what;
_err_print_error("gdnative_init", library->get_current_library_path().utf8().ptr(), 0, message.utf8().ptr());
}
bool GDAPI godot_is_instance_valid(const godot_object *p_object) {
return ObjectDB::instance_validate((Object *)p_object);
}
godot_object GDAPI *godot_instance_from_id(godot_int p_instance_id) {
return (godot_object *)ObjectDB::get_instance((ObjectID)p_instance_id);
}
void *godot_get_class_tag(const godot_string_name *p_class) {
StringName class_name = *(StringName *)p_class;
ClassDB::ClassInfo *class_info = ClassDB::classes.getptr(class_name);
return class_info ? class_info->class_ptr : NULL;
}
godot_object *godot_object_cast_to(const godot_object *p_object, void *p_class_tag) {
if (!p_object)
return NULL;
Object *o = (Object *)p_object;
return o->is_class_ptr(p_class_tag) ? (godot_object *)o : NULL;
}
#ifdef __cplusplus
}
#endif