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235 lines
12 KiB
C++
235 lines
12 KiB
C++
/**************************************************************************/
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/* gdextension.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef GDEXTENSION_H
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#define GDEXTENSION_H
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#include <functional>
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#include "core/extension/gdextension_interface.h"
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#include "core/io/config_file.h"
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#include "core/io/resource_loader.h"
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#include "core/object/ref_counted.h"
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#include "core/os/shared_object.h"
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class GDExtensionMethodBind;
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class GDExtension : public Resource {
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GDCLASS(GDExtension, Resource)
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friend class GDExtensionManager;
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void *library = nullptr; // pointer if valid,
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String library_path;
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bool reloadable = false;
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struct Extension {
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ObjectGDExtension gdextension;
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#ifdef TOOLS_ENABLED
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bool is_reloading = false;
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HashMap<StringName, GDExtensionMethodBind *> methods;
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HashSet<ObjectID> instances;
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struct InstanceState {
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List<Pair<String, Variant>> properties;
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bool is_placeholder = false;
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};
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HashMap<ObjectID, InstanceState> instance_state;
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#endif
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};
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HashMap<StringName, Extension> extension_classes;
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struct ClassCreationDeprecatedInfo {
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#ifndef DISABLE_DEPRECATED
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GDExtensionClassNotification notification_func = nullptr;
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GDExtensionClassFreePropertyList free_property_list_func = nullptr;
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#endif // DISABLE_DEPRECATED
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};
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#ifndef DISABLE_DEPRECATED
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static void _register_extension_class(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo *p_extension_funcs);
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static void _register_extension_class2(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo2 *p_extension_funcs);
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#endif // DISABLE_DEPRECATED
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static void _register_extension_class3(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs);
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static void _register_extension_class_internal(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs, const ClassCreationDeprecatedInfo *p_deprecated_funcs = nullptr);
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static void _register_extension_class_method(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionClassMethodInfo *p_method_info);
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static void _register_extension_class_virtual_method(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionClassVirtualMethodInfo *p_method_info);
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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);
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static void _register_extension_class_property(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionPropertyInfo *p_info, GDExtensionConstStringNamePtr p_setter, GDExtensionConstStringNamePtr p_getter);
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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);
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static void _register_extension_class_property_group(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_group_name, GDExtensionConstStringNamePtr p_prefix);
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static void _register_extension_class_property_subgroup(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_subgroup_name, GDExtensionConstStringNamePtr p_prefix);
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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);
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static void _unregister_extension_class(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name);
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static void _get_library_path(GDExtensionClassLibraryPtr p_library, GDExtensionStringPtr r_path);
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GDExtensionInitialization initialization;
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int32_t level_initialized = -1;
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#ifdef TOOLS_ENABLED
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uint64_t resource_last_modified_time = 0;
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uint64_t library_last_modified_time = 0;
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bool is_reloading = false;
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Vector<GDExtensionMethodBind *> invalid_methods;
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Vector<ObjectID> instance_bindings;
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static void _track_instance(void *p_user_data, void *p_instance);
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static void _untrack_instance(void *p_user_data, void *p_instance);
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void _clear_extension(Extension *p_extension);
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// Only called by GDExtensionManager during the reload process.
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void prepare_reload();
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void finish_reload();
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void clear_instance_bindings();
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#endif
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static HashMap<StringName, GDExtensionInterfaceFunctionPtr> gdextension_interface_functions;
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protected:
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static void _bind_methods();
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public:
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HashMap<String, String> class_icon_paths;
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virtual bool editor_can_reload_from_file() override { return false; } // Reloading is handled in a special way.
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static String get_extension_list_config_file();
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static String find_extension_library(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature, PackedStringArray *r_tags = nullptr);
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static Vector<SharedObject> find_extension_dependencies(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature);
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Error open_library(const String &p_path, const String &p_entry_symbol, Vector<SharedObject> *p_dependencies = nullptr);
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void close_library();
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enum InitializationLevel {
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INITIALIZATION_LEVEL_CORE = GDEXTENSION_INITIALIZATION_CORE,
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INITIALIZATION_LEVEL_SERVERS = GDEXTENSION_INITIALIZATION_SERVERS,
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INITIALIZATION_LEVEL_SCENE = GDEXTENSION_INITIALIZATION_SCENE,
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INITIALIZATION_LEVEL_EDITOR = GDEXTENSION_INITIALIZATION_EDITOR
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};
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protected:
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#ifndef DISABLE_DEPRECATED
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Error _open_library_bind_compat_88418(const String &p_path, const String &p_entry_symbol);
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void _close_library_bind_compat_88418();
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void _initialize_library_bind_compat_88418(InitializationLevel p_level);
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static void _bind_compatibility_methods();
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#endif
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public:
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bool is_library_open() const;
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#ifdef TOOLS_ENABLED
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bool is_reloadable() const { return reloadable; }
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void set_reloadable(bool p_reloadable) { reloadable = p_reloadable; }
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bool has_library_changed() const;
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void update_last_modified_time(uint64_t p_resource_last_modified_time, uint64_t p_library_last_modified_time) {
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resource_last_modified_time = p_resource_last_modified_time;
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library_last_modified_time = p_library_last_modified_time;
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}
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void track_instance_binding(Object *p_object);
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void untrack_instance_binding(Object *p_object);
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#endif
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InitializationLevel get_minimum_library_initialization_level() const;
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void initialize_library(InitializationLevel p_level);
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void deinitialize_library(InitializationLevel p_level);
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static void register_interface_function(const StringName &p_function_name, GDExtensionInterfaceFunctionPtr p_function_pointer);
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static GDExtensionInterfaceFunctionPtr get_interface_function(const StringName &p_function_name);
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static void initialize_gdextensions();
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static void finalize_gdextensions();
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GDExtension();
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~GDExtension();
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};
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VARIANT_ENUM_CAST(GDExtension::InitializationLevel)
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class GDExtensionResourceLoader : public ResourceFormatLoader {
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public:
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static Error load_gdextension_resource(const String &p_path, Ref<GDExtension> &p_extension);
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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) override;
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virtual void get_recognized_extensions(List<String> *p_extensions) const override;
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virtual bool handles_type(const String &p_type) const override;
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virtual String get_resource_type(const String &p_path) const override;
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};
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#ifdef TOOLS_ENABLED
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class GDExtensionEditorPlugins {
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private:
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static Vector<StringName> extension_classes;
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protected:
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friend class EditorNode;
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// Since this in core, we can't directly reference EditorNode, so it will
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// set these function pointers in its constructor.
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typedef void (*EditorPluginRegisterFunc)(const StringName &p_class_name);
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static EditorPluginRegisterFunc editor_node_add_plugin;
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static EditorPluginRegisterFunc editor_node_remove_plugin;
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public:
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static void add_extension_class(const StringName &p_class_name);
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static void remove_extension_class(const StringName &p_class_name);
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static const Vector<StringName> &get_extension_classes() {
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return extension_classes;
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}
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};
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class GDExtensionEditorHelp {
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protected:
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friend class EditorHelp;
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// Similarly to EditorNode above, we need to be able to ask EditorHelp to parse
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// new documentation data. Note though that, differently from EditorHelp, this
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// is initialized even _before_ it gets instantiated, as we need to rely on
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// this method while initializing the engine.
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typedef void (*EditorHelpLoadXmlBufferFunc)(const uint8_t *p_buffer, int p_size);
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static EditorHelpLoadXmlBufferFunc editor_help_load_xml_buffer;
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typedef void (*EditorHelpRemoveClassFunc)(const String &p_class);
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static EditorHelpRemoveClassFunc editor_help_remove_class;
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public:
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static void load_xml_buffer(const uint8_t *p_buffer, int p_size);
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static void remove_class(const String &p_class);
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};
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#endif // TOOLS_ENABLED
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#endif // GDEXTENSION_H
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