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* Based on top of the GDExtensionLoader PR: godotengine#91166 * Add a new GodotInstance GDCLASS that provides startup and iteration commands to control a Godot instance. * Adds a libgodot_create_godot_instance entry point that creates a new Godot instance and returns a GodotInstance object. * Adds a libgodot_destroy_godot_instance entry point that destroys the Godot instance. * Allow specifying an external native rendering surface handle to render Godot into the UI of a host application. * It is also possible to embed multiple Godot windows into the UI of a host application. * Currently supported on MacOS and iOS Sample Apps: https://github.com/migeran/libgodot_project Developed by [Migeran](https://migeran.com) Sponsors & Acknowledgements: * Initial development sponsored by [Smirk Software](https://www.smirk.gg/) * Rebasing to Godot 4.3 and further development sponsored by [Xibbon Inc.](https://xibbon.com) * The GDExtension registration of the host process & build system changes were based on @Faolan-Rad's LibGodot PR: godotengine#72883 Co-Authored-By: Gabor Koncz <[email protected]>
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| @@ -0,0 +1,71 @@ | ||
| /**************************************************************************/ | ||
| /* gdextension_function_loader.cpp */ | ||
| /**************************************************************************/ | ||
| /* 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. */ | ||
| /**************************************************************************/ | ||
|
|
||
| #include "gdextension_function_loader.h" | ||
| #include "core/config/project_settings.h" | ||
| #include "gdextension.h" | ||
|
|
||
| Error GDExtensionFunctionLoader::open_library(const String &p_path) { | ||
| ERR_FAIL_COND_V_MSG(!p_path.begins_with("libgodot://"), ERR_FILE_NOT_FOUND, "Function based GDExtensions should have a path starting with libgodot://"); | ||
| ERR_FAIL_COND_V_MSG(!initialization_function, ERR_DOES_NOT_EXIST, "Initialization function is required for function based GDExtensions."); | ||
|
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| library_path = p_path; | ||
|
|
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| return OK; | ||
| } | ||
|
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| Error GDExtensionFunctionLoader::initialize(GDExtensionInterfaceGetProcAddress p_get_proc_address, const Ref<GDExtension> &p_extension, GDExtensionInitialization *r_initialization) { | ||
| ERR_FAIL_COND_V_MSG(!initialization_function, ERR_DOES_NOT_EXIST, "Initialization function is required for function based GDExtensions."); | ||
| GDExtensionBool ret = initialization_function(p_get_proc_address, p_extension.ptr(), r_initialization); | ||
|
|
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| if (ret) { | ||
| return OK; | ||
| } else { | ||
| ERR_PRINT("GDExtension initialization function for '" + library_path + "' returned an error."); | ||
| return FAILED; | ||
| } | ||
| } | ||
|
|
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| void GDExtensionFunctionLoader::close_library() { | ||
| initialization_function = nullptr; | ||
| library_path.clear(); | ||
| } | ||
|
|
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| bool GDExtensionFunctionLoader::is_library_open() const { | ||
| return !library_path.is_empty(); | ||
| } | ||
|
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| bool GDExtensionFunctionLoader::has_library_changed() const { | ||
| return false; | ||
| } | ||
|
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| void GDExtensionFunctionLoader::set_initialization_function(GDExtensionInitializationFunction p_initialization_function) { | ||
| initialization_function = p_initialization_function; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| /**************************************************************************/ | ||
| /* gdextension_function_loader.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_FUNCTION_LOADER_H | ||
| #define GDEXTENSION_FUNCTION_LOADER_H | ||
|
|
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| #include "core/extension/gdextension_loader.h" | ||
| #include "core/os/shared_object.h" | ||
| #include <functional> | ||
|
|
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| class GDExtension; | ||
|
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| class GDExtensionFunctionLoader : public GDExtensionLoader { | ||
| friend class GDExtensionManager; | ||
| friend class GDExtension; | ||
|
|
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| private: | ||
| String library_path; | ||
| GDExtensionInitializationFunction initialization_function = nullptr; | ||
|
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| public: | ||
| Error open_library(const String &p_path) override; | ||
| Error initialize(GDExtensionInterfaceGetProcAddress p_get_proc_address, const Ref<GDExtension> &p_extension, GDExtensionInitialization *r_initialization) override; | ||
| void close_library() override; | ||
| bool is_library_open() const override; | ||
| bool has_library_changed() const override; | ||
|
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| void set_initialization_function(GDExtensionInitializationFunction initialization_function); | ||
| }; | ||
|
|
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| #endif // GDEXTENSION_FUNCTION_LOADER_H |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| /**************************************************************************/ | ||
| /* godot_instance.cpp */ | ||
| /**************************************************************************/ | ||
| /* 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. */ | ||
| /**************************************************************************/ | ||
|
|
||
| #include "godot_instance.h" | ||
| #include "core/extension/gdextension_manager.h" | ||
| #include "main/main.h" | ||
| #include "servers/display_server.h" | ||
|
|
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| void GodotInstance::_bind_methods() { | ||
| ClassDB::bind_method(D_METHOD("start"), &GodotInstance::start); | ||
| ClassDB::bind_method(D_METHOD("is_started"), &GodotInstance::is_started); | ||
| ClassDB::bind_method(D_METHOD("iteration"), &GodotInstance::iteration); | ||
| } | ||
|
|
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| GodotInstance::GodotInstance() { | ||
| } | ||
|
|
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| GodotInstance::~GodotInstance() { | ||
| } | ||
|
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| bool GodotInstance::initialize(GDExtensionInitializationFunction p_init_func) { | ||
| GDExtensionManager *gdextension_manager = GDExtensionManager::get_singleton(); | ||
| GDExtensionConstPtr<const GDExtensionInitializationFunction> ptr((const GDExtensionInitializationFunction *)&p_init_func); | ||
| GDExtensionManager::LoadStatus status = gdextension_manager->load_function_extension("libgodot://main", ptr); | ||
| return status == GDExtensionManager::LoadStatus::LOAD_STATUS_OK; | ||
| } | ||
|
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| bool GodotInstance::start() { | ||
| Error err = Main::setup2(); | ||
| if (err != OK) { | ||
| return false; | ||
| } | ||
| started = Main::start() == EXIT_SUCCESS; | ||
| if (started) { | ||
| OS::get_singleton()->get_main_loop()->initialize(); | ||
| } | ||
| return started; | ||
| } | ||
|
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| bool GodotInstance::is_started() { | ||
| return started; | ||
| } | ||
|
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| bool GodotInstance::iteration() { | ||
| DisplayServer::get_singleton()->process_events(); | ||
| return Main::iteration(); | ||
| } | ||
|
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| void GodotInstance::stop() { | ||
| if (started) { | ||
| OS::get_singleton()->get_main_loop()->finalize(); | ||
| } | ||
| started = false; | ||
| } |
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