godot/modules/gdnative/register_types.cpp
Karroffel 534d62d2f4 [GDNative] new GDNative API
This adds GDNative as a separate class type.
It can be used to interface with native libraries by
using "native calls", which can be registered by modules
(and in future other GDNative libraries?).

It also reworks the currently called "GDNativeScript" into a
"NativeScript" that just makes use of the new GDNative instead
of it being the component that implements that functionality.
2017-07-24 04:23:37 +02:00

79 lines
3.4 KiB
C++

/*************************************************************************/
/* register_types.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 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 "register_types.h"
#include "gdnative.h"
#include "io/resource_loader.h"
#include "io/resource_saver.h"
#include "core/os/os.h"
godot_variant cb_standard_varcall(void *handle, godot_string *p_procedure, godot_array *p_args) {
if (handle == NULL) {
ERR_PRINT("No valid library handle, can't call standard varcall procedure");
godot_variant ret;
godot_variant_new_nil(&ret);
return ret;
}
void *library_proc;
Error err = OS::get_singleton()->get_dynamic_library_symbol_handle(
handle,
*(String *)p_procedure,
library_proc);
if (err != OK) {
ERR_PRINT((String("GDNative procedure \"" + *(String *)p_procedure) + "\" does not exists and can't be called").utf8().get_data());
godot_variant ret;
godot_variant_new_nil(&ret);
return ret;
}
godot_gdnative_procedure_fn proc;
proc = (godot_gdnative_procedure_fn)library_proc;
return proc(NULL, p_args);
}
GDNativeCallRegistry *GDNativeCallRegistry::singleton;
void register_gdnative_types() {
ClassDB::register_class<GDNativeLibrary>();
ClassDB::register_class<GDNative>();
GDNativeCallRegistry::singleton = memnew(GDNativeCallRegistry);
GDNativeCallRegistry::singleton->register_native_call_type("standard_varcall", cb_standard_varcall);
}
void unregister_gdnative_types() {
memdelete(GDNativeCallRegistry::singleton);
}