godot/core/extension/gdextension.h
2023-08-17 13:23:31 -05:00

143 lines
7.5 KiB
C++

/**************************************************************************/
/* gdextension.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#ifndef GDEXTENSION_H
#define GDEXTENSION_H
#include <functional>
#include "core/extension/gdextension_interface.h"
#include "core/io/config_file.h"
#include "core/io/resource_loader.h"
#include "core/object/ref_counted.h"
class GDExtension : public Resource {
GDCLASS(GDExtension, Resource)
void *library = nullptr; // pointer if valid,
String library_path;
#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
String temp_lib_path;
#endif
struct Extension {
ObjectGDExtension gdextension;
};
HashMap<StringName, Extension> extension_classes;
static void _register_extension_class(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo *p_extension_funcs);
static void _register_extension_class_method(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionClassMethodInfo *p_method_info);
static void _register_extension_class_integer_constant(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_enum_name, GDExtensionConstStringNamePtr p_constant_name, GDExtensionInt p_constant_value, GDExtensionBool p_is_bitfield);
static void _register_extension_class_property(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionPropertyInfo *p_info, GDExtensionConstStringNamePtr p_setter, GDExtensionConstStringNamePtr p_getter);
static void _register_extension_class_property_indexed(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionPropertyInfo *p_info, GDExtensionConstStringNamePtr p_setter, GDExtensionConstStringNamePtr p_getter, GDExtensionInt p_index);
static void _register_extension_class_property_group(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_group_name, GDExtensionConstStringNamePtr p_prefix);
static void _register_extension_class_property_subgroup(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_subgroup_name, GDExtensionConstStringNamePtr p_prefix);
static void _register_extension_class_signal(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_signal_name, const GDExtensionPropertyInfo *p_argument_info, GDExtensionInt p_argument_count);
static void _unregister_extension_class(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name);
static void _get_library_path(GDExtensionClassLibraryPtr p_library, GDExtensionStringPtr r_path);
GDExtensionInitialization initialization;
int32_t level_initialized = -1;
protected:
static void _bind_methods();
public:
HashMap<String, String> class_icon_paths;
static String get_extension_list_config_file();
static String find_extension_library(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature, PackedStringArray *r_tags = nullptr);
Error open_library(const String &p_path, const String &p_entry_symbol);
void close_library();
#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
void set_temp_library_path(const String &p_path) { temp_lib_path = p_path; }
String get_temp_library_path() const { return temp_lib_path; }
#endif
enum InitializationLevel {
INITIALIZATION_LEVEL_CORE = GDEXTENSION_INITIALIZATION_CORE,
INITIALIZATION_LEVEL_SERVERS = GDEXTENSION_INITIALIZATION_SERVERS,
INITIALIZATION_LEVEL_SCENE = GDEXTENSION_INITIALIZATION_SCENE,
INITIALIZATION_LEVEL_EDITOR = GDEXTENSION_INITIALIZATION_EDITOR
};
bool is_library_open() const;
InitializationLevel get_minimum_library_initialization_level() const;
void initialize_library(InitializationLevel p_level);
void deinitialize_library(InitializationLevel p_level);
static void register_interface_function(StringName p_function_name, GDExtensionInterfaceFunctionPtr p_function_pointer);
static GDExtensionInterfaceFunctionPtr get_interface_function(StringName p_function_name);
static void initialize_gdextensions();
GDExtension();
~GDExtension();
};
VARIANT_ENUM_CAST(GDExtension::InitializationLevel)
class GDExtensionResourceLoader : public ResourceFormatLoader {
public:
virtual Ref<Resource> load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads = false, float *r_progress = nullptr, CacheMode p_cache_mode = CACHE_MODE_REUSE);
virtual void get_recognized_extensions(List<String> *p_extensions) const;
virtual bool handles_type(const String &p_type) const;
virtual String get_resource_type(const String &p_path) const;
};
#ifdef TOOLS_ENABLED
class GDExtensionEditorPlugins {
private:
static Vector<StringName> extension_classes;
protected:
friend class EditorNode;
// Since this in core, we can't directly reference EditorNode, so it will
// set these function pointers in its constructor.
typedef void (*EditorPluginRegisterFunc)(const StringName &p_class_name);
static EditorPluginRegisterFunc editor_node_add_plugin;
static EditorPluginRegisterFunc editor_node_remove_plugin;
public:
static void add_extension_class(const StringName &p_class_name);
static void remove_extension_class(const StringName &p_class_name);
static const Vector<StringName> &get_extension_classes() {
return extension_classes;
}
};
#endif // TOOLS_ENABLED
#endif // GDEXTENSION_H