initial commit, 4.5 stable
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173
core/io/resource_importer.h
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173
core/io/resource_importer.h
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/**************************************************************************/
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/* resource_importer.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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#pragma once
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#include "core/io/resource_loader.h"
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#include "core/io/resource_saver.h"
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class ResourceImporter;
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class ResourceFormatImporter;
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typedef Ref<Resource> (*ResourceFormatImporterLoadOnStartup)(ResourceFormatImporter *p_importer, const String &p_path, Error *r_error, bool p_use_sub_threads, float *r_progress, ResourceFormatLoader::CacheMode p_cache_mode);
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class ResourceFormatImporter : public ResourceFormatLoader {
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struct PathAndType {
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String path;
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String type;
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String importer;
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String group_file;
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Variant metadata;
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ResourceUID::ID uid = ResourceUID::INVALID_ID;
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};
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Error _get_path_and_type(const String &p_path, PathAndType &r_path_and_type, bool p_load, bool *r_valid = nullptr) const;
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static inline ResourceFormatImporter *singleton = nullptr;
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//need them to stay in order to compute the settings hash
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struct SortImporterByName {
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bool operator()(const Ref<ResourceImporter> &p_a, const Ref<ResourceImporter> &p_b) const;
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};
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Vector<Ref<ResourceImporter>> importers;
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public:
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static ResourceFormatImporter *get_singleton() { return singleton; }
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virtual Ref<Resource> load(const String &p_path, const String &p_original_path = "", Error *r_error = nullptr, bool p_use_sub_threads = false, float *r_progress = nullptr, CacheMode p_cache_mode = CACHE_MODE_REUSE) override;
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Ref<Resource> load_internal(const String &p_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode, bool p_silence_errors);
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virtual void get_recognized_extensions(List<String> *p_extensions) const override;
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virtual void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const override;
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virtual bool recognize_path(const String &p_path, const String &p_for_type = String()) 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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virtual ResourceUID::ID get_resource_uid(const String &p_path) const override;
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virtual bool has_custom_uid_support() const override;
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virtual Variant get_resource_metadata(const String &p_path) const;
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virtual bool is_import_valid(const String &p_path) const override;
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virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false) override;
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virtual bool is_imported(const String &p_path) const override { return recognize_path(p_path); }
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virtual String get_import_group_file(const String &p_path) const override;
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virtual void get_classes_used(const String &p_path, HashSet<StringName> *r_classes) override;
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virtual bool exists(const String &p_path) const override;
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void get_build_dependencies(const String &p_path, HashSet<String> *r_dependencies);
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virtual int get_import_order(const String &p_path) const override;
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Error get_import_order_threads_and_importer(const String &p_path, int &r_order, bool &r_can_threads, String &r_importer) const;
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String get_internal_resource_path(const String &p_path) const;
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void get_internal_resource_path_list(const String &p_path, List<String> *r_paths);
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void add_importer(const Ref<ResourceImporter> &p_importer, bool p_first_priority = false);
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void remove_importer(const Ref<ResourceImporter> &p_importer) { importers.erase(p_importer); }
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Ref<ResourceImporter> get_importer_by_name(const String &p_name) const;
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Ref<ResourceImporter> get_importer_by_file(const String &p_file) const;
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void get_importers_for_file(const String &p_file, List<Ref<ResourceImporter>> *r_importers);
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void get_importers(List<Ref<ResourceImporter>> *r_importers);
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bool are_import_settings_valid(const String &p_path) const;
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String get_import_settings_hash() const;
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String get_import_base_path(const String &p_for_file) const;
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Error get_resource_import_info(const String &p_path, StringName &r_type, ResourceUID::ID &r_uid, String &r_import_group_file) const;
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ResourceFormatImporter();
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};
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class ResourceImporter : public RefCounted {
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GDCLASS(ResourceImporter, RefCounted);
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protected:
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GDVIRTUAL1RC(Vector<String>, _get_build_dependencies, String)
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static void _bind_methods();
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public:
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static inline ResourceFormatImporterLoadOnStartup load_on_startup = nullptr;
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virtual String get_importer_name() const = 0;
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virtual String get_visible_name() const = 0;
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virtual void get_recognized_extensions(List<String> *p_extensions) const = 0;
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virtual String get_save_extension() const = 0;
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virtual String get_resource_type() const = 0;
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virtual float get_priority() const { return 1.0; }
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virtual int get_import_order() const { return IMPORT_ORDER_DEFAULT; }
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virtual int get_format_version() const { return 0; }
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struct ImportOption {
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PropertyInfo option;
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Variant default_value;
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ImportOption(const PropertyInfo &p_info, const Variant &p_default) :
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option(p_info),
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default_value(p_default) {
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}
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ImportOption() {}
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};
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enum ImportOrder {
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IMPORT_ORDER_DEFAULT = 0,
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IMPORT_ORDER_SCENE = 100,
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};
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virtual bool has_advanced_options() const { return false; }
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virtual void show_advanced_options(const String &p_path) {}
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virtual int get_preset_count() const { return 0; }
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virtual String get_preset_name(int p_idx) const { return String(); }
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virtual void get_import_options(const String &p_path, List<ImportOption> *r_options, int p_preset = 0) const = 0;
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virtual bool get_option_visibility(const String &p_path, const String &p_option, const HashMap<StringName, Variant> &p_options) const = 0;
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virtual void handle_compatibility_options(HashMap<StringName, Variant> &p_import_params) const {}
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virtual String get_option_group_file() const { return String(); }
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virtual Error import(ResourceUID::ID p_source_id, const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) = 0;
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virtual bool can_import_threaded() const { return false; }
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virtual void import_threaded_begin() {}
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virtual void import_threaded_end() {}
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virtual Error import_group_file(const String &p_group_file, const HashMap<String, HashMap<StringName, Variant>> &p_source_file_options, const HashMap<String, String> &p_base_paths) { return ERR_UNAVAILABLE; }
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virtual bool are_import_settings_valid(const String &p_path, const Dictionary &p_meta) const { return true; }
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virtual String get_import_settings_string() const { return String(); }
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virtual void get_build_dependencies(const String &p_path, HashSet<String> *r_build_dependencies);
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};
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VARIANT_ENUM_CAST(ResourceImporter::ImportOrder);
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class ResourceFormatImporterSaver : public ResourceFormatSaver {
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GDCLASS(ResourceFormatImporterSaver, ResourceFormatSaver)
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public:
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virtual Error set_uid(const String &p_path, ResourceUID::ID p_uid) override;
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};
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