cff69b0612
This is done only in the editor and only on Windows, to avoid a file lock that prevents the original library being updated (e.g. by a compiler). When the game runs it will load the original DLL and pick up any changes, only the editor will stay with the copy (until it is restarted and create a new copy). The copy is done in place by prepending a `~` to the original file name, so dependencies that are loaded with a relative file path still work. When the library is unloaded the copy file is deleted. The copy is also marked as hidden to not show up in explorer.
142 lines
7.5 KiB
C++
142 lines
7.5 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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class GDExtension : public Resource {
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GDCLASS(GDExtension, Resource)
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void *library = nullptr; // pointer if valid,
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String library_path;
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#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
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String temp_lib_path;
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#endif
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struct Extension {
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ObjectGDExtension gdextension;
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};
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HashMap<StringName, Extension> extension_classes;
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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_class_method(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionClassMethodInfo *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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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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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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Error open_library(const String &p_path, const String &p_entry_symbol);
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void close_library();
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#if defined(WINDOWS_ENABLED) && defined(TOOLS_ENABLED)
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void set_temp_library_path(const String &p_path) { temp_lib_path = p_path; }
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#endif
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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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bool is_library_open() const;
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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(StringName p_function_name, GDExtensionInterfaceFunctionPtr p_function_pointer);
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static GDExtensionInterfaceFunctionPtr get_interface_function(StringName p_function_name);
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static void initialize_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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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);
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virtual void get_recognized_extensions(List<String> *p_extensions) const;
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virtual bool handles_type(const String &p_type) const;
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virtual String get_resource_type(const String &p_path) const;
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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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#endif // TOOLS_ENABLED
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#endif // GDEXTENSION_H
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