5e144022e7
- Unify documentation, hoping to clear misconcepctions about about propagation of the cache mode across dependant loads. - Clarify in docs that `CACHE_MODE_REPLACE` now also works on the main resource (from #87008). - Add two recursive modes, counterparts of `CACHE_MODE_REPLACE` and `CACHE_MODE_IGNORE`, since it seems some need them (see #59669, #82830). - Let resources, even loaded with one of the ignore-cache modes, get a path, which is useful for tools.
281 lines
12 KiB
C++
281 lines
12 KiB
C++
/**************************************************************************/
|
|
/* resource_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 RESOURCE_LOADER_H
|
|
#define RESOURCE_LOADER_H
|
|
|
|
#include "core/io/resource.h"
|
|
#include "core/object/gdvirtual.gen.inc"
|
|
#include "core/object/worker_thread_pool.h"
|
|
#include "core/os/semaphore.h"
|
|
#include "core/os/thread.h"
|
|
|
|
class ConditionVariable;
|
|
|
|
template <int Tag>
|
|
class SafeBinaryMutex;
|
|
|
|
class ResourceFormatLoader : public RefCounted {
|
|
GDCLASS(ResourceFormatLoader, RefCounted);
|
|
|
|
public:
|
|
enum CacheMode {
|
|
CACHE_MODE_IGNORE,
|
|
CACHE_MODE_REUSE,
|
|
CACHE_MODE_REPLACE,
|
|
CACHE_MODE_IGNORE_DEEP,
|
|
CACHE_MODE_REPLACE_DEEP,
|
|
};
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
GDVIRTUAL0RC(Vector<String>, _get_recognized_extensions)
|
|
GDVIRTUAL2RC(bool, _recognize_path, String, StringName)
|
|
GDVIRTUAL1RC(bool, _handles_type, StringName)
|
|
GDVIRTUAL1RC(String, _get_resource_type, String)
|
|
GDVIRTUAL1RC(String, _get_resource_script_class, String)
|
|
GDVIRTUAL1RC(ResourceUID::ID, _get_resource_uid, String)
|
|
GDVIRTUAL2RC(Vector<String>, _get_dependencies, String, bool)
|
|
GDVIRTUAL1RC(Vector<String>, _get_classes_used, String)
|
|
GDVIRTUAL2RC(Error, _rename_dependencies, String, Dictionary)
|
|
GDVIRTUAL1RC(bool, _exists, String)
|
|
|
|
GDVIRTUAL4RC(Variant, _load, String, String, bool, int)
|
|
|
|
public:
|
|
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);
|
|
virtual bool exists(const String &p_path) const;
|
|
virtual void get_recognized_extensions(List<String> *p_extensions) const;
|
|
virtual void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const;
|
|
virtual bool recognize_path(const String &p_path, const String &p_for_type = String()) const;
|
|
virtual bool handles_type(const String &p_type) const;
|
|
virtual void get_classes_used(const String &p_path, HashSet<StringName> *r_classes);
|
|
virtual String get_resource_type(const String &p_path) const;
|
|
virtual String get_resource_script_class(const String &p_path) const;
|
|
virtual ResourceUID::ID get_resource_uid(const String &p_path) const;
|
|
virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
|
|
virtual Error rename_dependencies(const String &p_path, const HashMap<String, String> &p_map);
|
|
virtual bool is_import_valid(const String &p_path) const { return true; }
|
|
virtual bool is_imported(const String &p_path) const { return false; }
|
|
virtual int get_import_order(const String &p_path) const { return 0; }
|
|
virtual String get_import_group_file(const String &p_path) const { return ""; } //no group
|
|
|
|
virtual ~ResourceFormatLoader() {}
|
|
};
|
|
|
|
VARIANT_ENUM_CAST(ResourceFormatLoader::CacheMode)
|
|
|
|
typedef void (*ResourceLoadErrorNotify)(const String &p_text);
|
|
typedef void (*DependencyErrorNotify)(const String &p_loading, const String &p_which, const String &p_type);
|
|
|
|
typedef Error (*ResourceLoaderImport)(const String &p_path);
|
|
typedef void (*ResourceLoadedCallback)(Ref<Resource> p_resource, const String &p_path);
|
|
|
|
class ResourceLoader {
|
|
enum {
|
|
MAX_LOADERS = 64
|
|
};
|
|
|
|
public:
|
|
enum ThreadLoadStatus {
|
|
THREAD_LOAD_INVALID_RESOURCE,
|
|
THREAD_LOAD_IN_PROGRESS,
|
|
THREAD_LOAD_FAILED,
|
|
THREAD_LOAD_LOADED
|
|
};
|
|
|
|
enum LoadThreadMode {
|
|
LOAD_THREAD_FROM_CURRENT,
|
|
LOAD_THREAD_SPAWN_SINGLE,
|
|
LOAD_THREAD_DISTRIBUTE,
|
|
};
|
|
|
|
struct LoadToken : public RefCounted {
|
|
String local_path;
|
|
String user_path;
|
|
Ref<Resource> res_if_unregistered;
|
|
|
|
void clear();
|
|
|
|
virtual ~LoadToken();
|
|
};
|
|
|
|
static const int BINARY_MUTEX_TAG = 1;
|
|
|
|
static Ref<LoadToken> _load_start(const String &p_path, const String &p_type_hint, LoadThreadMode p_thread_mode, ResourceFormatLoader::CacheMode p_cache_mode);
|
|
static Ref<Resource> _load_complete(LoadToken &p_load_token, Error *r_error);
|
|
|
|
private:
|
|
static Ref<Resource> _load_complete_inner(LoadToken &p_load_token, Error *r_error, MutexLock<SafeBinaryMutex<BINARY_MUTEX_TAG>> &p_thread_load_lock);
|
|
|
|
static Ref<ResourceFormatLoader> loader[MAX_LOADERS];
|
|
static int loader_count;
|
|
static bool timestamp_on_load;
|
|
|
|
static void *err_notify_ud;
|
|
static ResourceLoadErrorNotify err_notify;
|
|
static void *dep_err_notify_ud;
|
|
static DependencyErrorNotify dep_err_notify;
|
|
static bool abort_on_missing_resource;
|
|
static bool create_missing_resources_if_class_unavailable;
|
|
static HashMap<String, Vector<String>> translation_remaps;
|
|
static HashMap<String, String> path_remaps;
|
|
|
|
static String _path_remap(const String &p_path, bool *r_translation_remapped = nullptr);
|
|
friend class Resource;
|
|
|
|
static SelfList<Resource>::List remapped_list;
|
|
|
|
friend class ResourceFormatImporter;
|
|
|
|
static Ref<Resource> _load(const String &p_path, const String &p_original_path, const String &p_type_hint, ResourceFormatLoader::CacheMode p_cache_mode, Error *r_error, bool p_use_sub_threads, float *r_progress);
|
|
|
|
static ResourceLoadedCallback _loaded_callback;
|
|
|
|
static Ref<ResourceFormatLoader> _find_custom_resource_format_loader(const String &path);
|
|
|
|
struct ThreadLoadTask {
|
|
WorkerThreadPool::TaskID task_id = 0; // Used if run on a worker thread from the pool.
|
|
Thread::ID thread_id = 0; // Used if running on an user thread (e.g., simple non-threaded load).
|
|
bool awaited = false; // If it's in the pool, this helps not awaiting from more than one dependent thread.
|
|
ConditionVariable *cond_var = nullptr; // In not in the worker pool or already awaiting, this is used as a secondary awaiting mechanism.
|
|
LoadToken *load_token = nullptr;
|
|
String local_path;
|
|
String remapped_path;
|
|
String dependent_path;
|
|
String type_hint;
|
|
float progress = 0.0f;
|
|
float max_reported_progress = 0.0f;
|
|
ThreadLoadStatus status = THREAD_LOAD_IN_PROGRESS;
|
|
ResourceFormatLoader::CacheMode cache_mode = ResourceFormatLoader::CACHE_MODE_REUSE;
|
|
Error error = OK;
|
|
Ref<Resource> resource;
|
|
bool xl_remapped = false;
|
|
bool use_sub_threads = false;
|
|
HashSet<String> sub_tasks;
|
|
};
|
|
|
|
static void _thread_load_function(void *p_userdata);
|
|
|
|
static thread_local int load_nesting;
|
|
static thread_local WorkerThreadPool::TaskID caller_task_id;
|
|
static thread_local Vector<String> *load_paths_stack; // A pointer to avoid broken TLS implementations from double-running the destructor.
|
|
static SafeBinaryMutex<BINARY_MUTEX_TAG> thread_load_mutex;
|
|
static HashMap<String, ThreadLoadTask> thread_load_tasks;
|
|
static bool cleaning_tasks;
|
|
|
|
static HashMap<String, LoadToken *> user_load_tokens;
|
|
|
|
static float _dependency_get_progress(const String &p_path);
|
|
|
|
public:
|
|
static Error load_threaded_request(const String &p_path, const String &p_type_hint = "", bool p_use_sub_threads = false, ResourceFormatLoader::CacheMode p_cache_mode = ResourceFormatLoader::CACHE_MODE_REUSE);
|
|
static ThreadLoadStatus load_threaded_get_status(const String &p_path, float *r_progress = nullptr);
|
|
static Ref<Resource> load_threaded_get(const String &p_path, Error *r_error = nullptr);
|
|
|
|
static bool is_within_load() { return load_nesting > 0; };
|
|
|
|
static Ref<Resource> load(const String &p_path, const String &p_type_hint = "", ResourceFormatLoader::CacheMode p_cache_mode = ResourceFormatLoader::CACHE_MODE_REUSE, Error *r_error = nullptr);
|
|
static bool exists(const String &p_path, const String &p_type_hint = "");
|
|
|
|
static void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions);
|
|
static void add_resource_format_loader(Ref<ResourceFormatLoader> p_format_loader, bool p_at_front = false);
|
|
static void remove_resource_format_loader(Ref<ResourceFormatLoader> p_format_loader);
|
|
static void get_classes_used(const String &p_path, HashSet<StringName> *r_classes);
|
|
static String get_resource_type(const String &p_path);
|
|
static String get_resource_script_class(const String &p_path);
|
|
static ResourceUID::ID get_resource_uid(const String &p_path);
|
|
static void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
|
|
static Error rename_dependencies(const String &p_path, const HashMap<String, String> &p_map);
|
|
static bool is_import_valid(const String &p_path);
|
|
static String get_import_group_file(const String &p_path);
|
|
static bool is_imported(const String &p_path);
|
|
static int get_import_order(const String &p_path);
|
|
|
|
static void set_timestamp_on_load(bool p_timestamp) { timestamp_on_load = p_timestamp; }
|
|
static bool get_timestamp_on_load() { return timestamp_on_load; }
|
|
|
|
// Loaders can safely use this regardless which thread they are running on.
|
|
static void notify_load_error(const String &p_err) {
|
|
if (err_notify) {
|
|
callable_mp_static(err_notify).bind(p_err).call_deferred();
|
|
}
|
|
}
|
|
static void set_error_notify_func(ResourceLoadErrorNotify p_err_notify) {
|
|
err_notify = p_err_notify;
|
|
}
|
|
|
|
// Loaders can safely use this regardless which thread they are running on.
|
|
static void notify_dependency_error(const String &p_path, const String &p_dependency, const String &p_type) {
|
|
if (dep_err_notify) {
|
|
if (Thread::get_caller_id() == Thread::get_main_id()) {
|
|
dep_err_notify(p_path, p_dependency, p_type);
|
|
} else {
|
|
callable_mp_static(dep_err_notify).bind(p_path, p_dependency, p_type).call_deferred();
|
|
}
|
|
}
|
|
}
|
|
static void set_dependency_error_notify_func(DependencyErrorNotify p_err_notify) {
|
|
dep_err_notify = p_err_notify;
|
|
}
|
|
|
|
static void set_abort_on_missing_resources(bool p_abort) { abort_on_missing_resource = p_abort; }
|
|
static bool get_abort_on_missing_resources() { return abort_on_missing_resource; }
|
|
|
|
static String path_remap(const String &p_path);
|
|
static String import_remap(const String &p_path);
|
|
|
|
static void load_path_remaps();
|
|
static void clear_path_remaps();
|
|
|
|
static void reload_translation_remaps();
|
|
static void load_translation_remaps();
|
|
static void clear_translation_remaps();
|
|
|
|
static void clear_thread_load_tasks();
|
|
|
|
static void set_load_callback(ResourceLoadedCallback p_callback);
|
|
static ResourceLoaderImport import;
|
|
|
|
static bool add_custom_resource_format_loader(const String &script_path);
|
|
static void add_custom_loaders();
|
|
static void remove_custom_loaders();
|
|
|
|
static void set_create_missing_resources_if_class_unavailable(bool p_enable);
|
|
_FORCE_INLINE_ static bool is_creating_missing_resources_if_class_unavailable_enabled() { return create_missing_resources_if_class_unavailable; }
|
|
|
|
static bool is_cleaning_tasks();
|
|
|
|
static void initialize();
|
|
static void finalize();
|
|
};
|
|
|
|
#endif // RESOURCE_LOADER_H
|