1196 lines
37 KiB
C++
1196 lines
37 KiB
C++
/**************************************************************************/
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/* resource_loader.cpp */
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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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#include "resource_loader.h"
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#include "core/config/project_settings.h"
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#include "core/io/file_access.h"
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#include "core/io/resource_importer.h"
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#include "core/object/script_language.h"
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#include "core/os/condition_variable.h"
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#include "core/os/os.h"
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#include "core/string/print_string.h"
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#include "core/string/translation.h"
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#include "core/variant/variant_parser.h"
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#ifdef DEBUG_LOAD_THREADED
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#define print_lt(m_text) print_line(m_text)
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#else
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#define print_lt(m_text)
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#endif
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Ref<ResourceFormatLoader> ResourceLoader::loader[ResourceLoader::MAX_LOADERS];
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int ResourceLoader::loader_count = 0;
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bool ResourceFormatLoader::recognize_path(const String &p_path, const String &p_for_type) const {
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bool ret = false;
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if (GDVIRTUAL_CALL(_recognize_path, p_path, p_for_type, ret)) {
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return ret;
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}
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String extension = p_path.get_extension();
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List<String> extensions;
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if (p_for_type.is_empty()) {
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get_recognized_extensions(&extensions);
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} else {
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get_recognized_extensions_for_type(p_for_type, &extensions);
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}
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for (const String &E : extensions) {
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if (E.nocasecmp_to(extension) == 0) {
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return true;
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}
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}
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return false;
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}
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bool ResourceFormatLoader::handles_type(const String &p_type) const {
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bool success = false;
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GDVIRTUAL_CALL(_handles_type, p_type, success);
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return success;
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}
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void ResourceFormatLoader::get_classes_used(const String &p_path, HashSet<StringName> *r_classes) {
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Vector<String> ret;
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if (GDVIRTUAL_CALL(_get_classes_used, p_path, ret)) {
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for (int i = 0; i < ret.size(); i++) {
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r_classes->insert(ret[i]);
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}
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return;
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}
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String res = get_resource_type(p_path);
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if (!res.is_empty()) {
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r_classes->insert(res);
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}
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}
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String ResourceFormatLoader::get_resource_type(const String &p_path) const {
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String ret;
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GDVIRTUAL_CALL(_get_resource_type, p_path, ret);
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return ret;
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}
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String ResourceFormatLoader::get_resource_script_class(const String &p_path) const {
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String ret;
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GDVIRTUAL_CALL(_get_resource_script_class, p_path, ret);
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return ret;
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}
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ResourceUID::ID ResourceFormatLoader::get_resource_uid(const String &p_path) const {
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int64_t uid = ResourceUID::INVALID_ID;
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GDVIRTUAL_CALL(_get_resource_uid, p_path, uid);
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return uid;
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}
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void ResourceFormatLoader::get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const {
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if (p_type.is_empty() || handles_type(p_type)) {
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get_recognized_extensions(p_extensions);
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}
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}
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void ResourceLoader::get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) {
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for (int i = 0; i < loader_count; i++) {
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loader[i]->get_recognized_extensions_for_type(p_type, p_extensions);
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}
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}
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bool ResourceFormatLoader::exists(const String &p_path) const {
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bool success = false;
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if (GDVIRTUAL_CALL(_exists, p_path, success)) {
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return success;
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}
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return FileAccess::exists(p_path); // By default just check file.
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}
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void ResourceFormatLoader::get_recognized_extensions(List<String> *p_extensions) const {
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PackedStringArray exts;
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if (GDVIRTUAL_CALL(_get_recognized_extensions, exts)) {
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const String *r = exts.ptr();
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for (int i = 0; i < exts.size(); ++i) {
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p_extensions->push_back(r[i]);
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}
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}
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}
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Ref<Resource> ResourceFormatLoader::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
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Variant res;
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if (GDVIRTUAL_CALL(_load, p_path, p_original_path, p_use_sub_threads, p_cache_mode, res)) {
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if (res.get_type() == Variant::INT) { // Error code, abort.
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if (r_error) {
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*r_error = (Error)res.operator int64_t();
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}
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return Ref<Resource>();
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} else { // Success, pass on result.
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if (r_error) {
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*r_error = OK;
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}
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return res;
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}
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}
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ERR_FAIL_V_MSG(Ref<Resource>(), "Failed to load resource '" + p_path + "'. ResourceFormatLoader::load was not implemented for this resource type.");
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}
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void ResourceFormatLoader::get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types) {
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PackedStringArray deps;
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if (GDVIRTUAL_CALL(_get_dependencies, p_path, p_add_types, deps)) {
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const String *r = deps.ptr();
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for (int i = 0; i < deps.size(); ++i) {
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p_dependencies->push_back(r[i]);
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}
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}
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}
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Error ResourceFormatLoader::rename_dependencies(const String &p_path, const HashMap<String, String> &p_map) {
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Dictionary deps_dict;
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for (KeyValue<String, String> E : p_map) {
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deps_dict[E.key] = E.value;
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}
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Error err = OK;
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GDVIRTUAL_CALL(_rename_dependencies, p_path, deps_dict, err);
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return err;
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}
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void ResourceFormatLoader::_bind_methods() {
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BIND_ENUM_CONSTANT(CACHE_MODE_IGNORE);
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BIND_ENUM_CONSTANT(CACHE_MODE_REUSE);
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BIND_ENUM_CONSTANT(CACHE_MODE_REPLACE);
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GDVIRTUAL_BIND(_get_recognized_extensions);
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GDVIRTUAL_BIND(_recognize_path, "path", "type");
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GDVIRTUAL_BIND(_handles_type, "type");
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GDVIRTUAL_BIND(_get_resource_type, "path");
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GDVIRTUAL_BIND(_get_resource_script_class, "path");
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GDVIRTUAL_BIND(_get_resource_uid, "path");
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GDVIRTUAL_BIND(_get_dependencies, "path", "add_types");
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GDVIRTUAL_BIND(_rename_dependencies, "path", "renames");
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GDVIRTUAL_BIND(_exists, "path");
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GDVIRTUAL_BIND(_get_classes_used, "path");
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GDVIRTUAL_BIND(_load, "path", "original_path", "use_sub_threads", "cache_mode");
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}
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///////////////////////////////////
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// This should be robust enough to be called redundantly without issues.
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void ResourceLoader::LoadToken::clear() {
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thread_load_mutex.lock();
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WorkerThreadPool::TaskID task_to_await = 0;
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if (!local_path.is_empty()) { // Empty is used for the special case where the load task is not registered.
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DEV_ASSERT(thread_load_tasks.has(local_path));
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ThreadLoadTask &load_task = thread_load_tasks[local_path];
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if (!load_task.awaited) {
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task_to_await = load_task.task_id;
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load_task.awaited = true;
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}
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thread_load_tasks.erase(local_path);
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local_path.clear();
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}
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if (!user_path.is_empty()) {
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DEV_ASSERT(user_load_tokens.has(user_path));
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user_load_tokens.erase(user_path);
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user_path.clear();
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}
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thread_load_mutex.unlock();
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// If task is unused, await it here, locally, now the token data is consistent.
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if (task_to_await) {
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WorkerThreadPool::get_singleton()->wait_for_task_completion(task_to_await);
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}
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}
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ResourceLoader::LoadToken::~LoadToken() {
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clear();
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}
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Ref<Resource> ResourceLoader::_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) {
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load_nesting++;
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if (load_paths_stack->size()) {
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thread_load_mutex.lock();
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HashMap<String, ThreadLoadTask>::Iterator E = thread_load_tasks.find(load_paths_stack->get(load_paths_stack->size() - 1));
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if (E) {
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E->value.sub_tasks.insert(p_original_path);
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}
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thread_load_mutex.unlock();
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}
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load_paths_stack->push_back(p_original_path);
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// Try all loaders and pick the first match for the type hint
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bool found = false;
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Ref<Resource> res;
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for (int i = 0; i < loader_count; i++) {
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if (!loader[i]->recognize_path(p_path, p_type_hint)) {
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continue;
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}
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found = true;
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res = loader[i]->load(p_path, !p_original_path.is_empty() ? p_original_path : p_path, r_error, p_use_sub_threads, r_progress, p_cache_mode);
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if (!res.is_null()) {
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break;
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}
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}
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load_paths_stack->resize(load_paths_stack->size() - 1);
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load_nesting--;
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if (!res.is_null()) {
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return res;
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}
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ERR_FAIL_COND_V_MSG(found, Ref<Resource>(),
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vformat("Failed loading resource: %s. Make sure resources have been imported by opening the project in the editor at least once.", p_path));
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#ifdef TOOLS_ENABLED
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Ref<FileAccess> file_check = FileAccess::create(FileAccess::ACCESS_RESOURCES);
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ERR_FAIL_COND_V_MSG(!file_check->file_exists(p_path), Ref<Resource>(), vformat("Resource file not found: %s (expected type: %s)", p_path, p_type_hint));
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#endif
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ERR_FAIL_V_MSG(Ref<Resource>(), vformat("No loader found for resource: %s (expected type: %s)", p_path, p_type_hint));
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}
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void ResourceLoader::_thread_load_function(void *p_userdata) {
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ThreadLoadTask &load_task = *(ThreadLoadTask *)p_userdata;
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thread_load_mutex.lock();
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caller_task_id = load_task.task_id;
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if (cleaning_tasks) {
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load_task.status = THREAD_LOAD_FAILED;
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thread_load_mutex.unlock();
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return;
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}
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thread_load_mutex.unlock();
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// Thread-safe either if it's the current thread or a brand new one.
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CallQueue *mq_override = nullptr;
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if (load_nesting == 0) {
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load_paths_stack = memnew(Vector<String>);
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if (!load_task.dependent_path.is_empty()) {
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load_paths_stack->push_back(load_task.dependent_path);
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}
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if (!Thread::is_main_thread()) {
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mq_override = memnew(CallQueue);
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MessageQueue::set_thread_singleton_override(mq_override);
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set_current_thread_safe_for_nodes(true);
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}
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} else {
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DEV_ASSERT(load_task.dependent_path.is_empty());
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}
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// --
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if (!Thread::is_main_thread()) {
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set_current_thread_safe_for_nodes(true);
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}
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Ref<Resource> res = _load(load_task.remapped_path, load_task.remapped_path != load_task.local_path ? load_task.local_path : String(), load_task.type_hint, load_task.cache_mode, &load_task.error, load_task.use_sub_threads, &load_task.progress);
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if (mq_override) {
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mq_override->flush();
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}
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thread_load_mutex.lock();
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load_task.resource = res;
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load_task.progress = 1.0; //it was fully loaded at this point, so force progress to 1.0
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if (load_task.error != OK) {
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load_task.status = THREAD_LOAD_FAILED;
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} else {
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load_task.status = THREAD_LOAD_LOADED;
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}
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if (load_task.cond_var) {
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load_task.cond_var->notify_all();
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memdelete(load_task.cond_var);
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load_task.cond_var = nullptr;
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}
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if (load_task.resource.is_valid()) {
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if (load_task.cache_mode != ResourceFormatLoader::CACHE_MODE_IGNORE) {
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load_task.resource->set_path(load_task.local_path);
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} else if (!load_task.local_path.is_resource_file()) {
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load_task.resource->set_path_cache(load_task.local_path);
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}
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if (load_task.xl_remapped) {
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load_task.resource->set_as_translation_remapped(true);
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}
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#ifdef TOOLS_ENABLED
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load_task.resource->set_edited(false);
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if (timestamp_on_load) {
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uint64_t mt = FileAccess::get_modified_time(load_task.remapped_path);
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//printf("mt %s: %lli\n",remapped_path.utf8().get_data(),mt);
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load_task.resource->set_last_modified_time(mt);
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}
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#endif
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if (_loaded_callback) {
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_loaded_callback(load_task.resource, load_task.local_path);
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}
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}
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thread_load_mutex.unlock();
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if (load_nesting == 0) {
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if (mq_override) {
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memdelete(mq_override);
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}
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memdelete(load_paths_stack);
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}
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}
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static String _validate_local_path(const String &p_path) {
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ResourceUID::ID uid = ResourceUID::get_singleton()->text_to_id(p_path);
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if (uid != ResourceUID::INVALID_ID) {
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return ResourceUID::get_singleton()->get_id_path(uid);
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} else if (p_path.is_relative_path()) {
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return "res://" + p_path;
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} else {
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return ProjectSettings::get_singleton()->localize_path(p_path);
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}
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}
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Error ResourceLoader::load_threaded_request(const String &p_path, const String &p_type_hint, bool p_use_sub_threads, ResourceFormatLoader::CacheMode p_cache_mode) {
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thread_load_mutex.lock();
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if (user_load_tokens.has(p_path)) {
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print_verbose("load_threaded_request(): Another threaded load for resource path '" + p_path + "' has been initiated. Not an error.");
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user_load_tokens[p_path]->reference(); // Additional request.
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thread_load_mutex.unlock();
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return OK;
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}
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user_load_tokens[p_path] = nullptr;
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thread_load_mutex.unlock();
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Ref<ResourceLoader::LoadToken> token = _load_start(p_path, p_type_hint, p_use_sub_threads ? LOAD_THREAD_DISTRIBUTE : LOAD_THREAD_SPAWN_SINGLE, p_cache_mode);
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if (token.is_valid()) {
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thread_load_mutex.lock();
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token->user_path = p_path;
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token->reference(); // First request.
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user_load_tokens[p_path] = token.ptr();
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print_lt("REQUEST: user load tokens: " + itos(user_load_tokens.size()));
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thread_load_mutex.unlock();
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return OK;
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} else {
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return FAILED;
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}
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}
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Ref<Resource> ResourceLoader::load(const String &p_path, const String &p_type_hint, ResourceFormatLoader::CacheMode p_cache_mode, Error *r_error) {
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if (r_error) {
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*r_error = OK;
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}
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Ref<LoadToken> load_token = _load_start(p_path, p_type_hint, LOAD_THREAD_FROM_CURRENT, p_cache_mode);
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if (!load_token.is_valid()) {
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if (r_error) {
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*r_error = FAILED;
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}
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return Ref<Resource>();
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}
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Ref<Resource> res = _load_complete(*load_token.ptr(), r_error);
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return res;
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}
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Ref<ResourceLoader::LoadToken> ResourceLoader::_load_start(const String &p_path, const String &p_type_hint, LoadThreadMode p_thread_mode, ResourceFormatLoader::CacheMode p_cache_mode) {
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String local_path = _validate_local_path(p_path);
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Ref<LoadToken> load_token;
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bool must_not_register = false;
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ThreadLoadTask unregistered_load_task; // Once set, must be valid up to the call to do the load.
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ThreadLoadTask *load_task_ptr = nullptr;
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bool run_on_current_thread = false;
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{
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MutexLock thread_load_lock(thread_load_mutex);
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if (thread_load_tasks.has(local_path)) {
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load_token = Ref<LoadToken>(thread_load_tasks[local_path].load_token);
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if (!load_token.is_valid()) {
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// The token is dying (reached 0 on another thread).
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// Ensure it's killed now so the path can be safely reused right away.
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thread_load_tasks[local_path].load_token->clear();
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} else {
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if (p_cache_mode != ResourceFormatLoader::CACHE_MODE_IGNORE) {
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return load_token;
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}
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}
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}
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load_token.instantiate();
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load_token->local_path = local_path;
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//create load task
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{
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ThreadLoadTask load_task;
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load_task.remapped_path = _path_remap(local_path, &load_task.xl_remapped);
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load_task.load_token = load_token.ptr();
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load_task.local_path = local_path;
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load_task.type_hint = p_type_hint;
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load_task.cache_mode = p_cache_mode;
|
|
load_task.use_sub_threads = p_thread_mode == LOAD_THREAD_DISTRIBUTE;
|
|
if (p_cache_mode != ResourceFormatLoader::CACHE_MODE_IGNORE) {
|
|
Ref<Resource> existing = ResourceCache::get_ref(local_path);
|
|
if (existing.is_valid()) {
|
|
//referencing is fine
|
|
load_task.resource = existing;
|
|
load_task.status = THREAD_LOAD_LOADED;
|
|
load_task.progress = 1.0;
|
|
thread_load_tasks[local_path] = load_task;
|
|
return load_token;
|
|
}
|
|
}
|
|
|
|
// If we want to ignore cache, but there's another task loading it, we can't add this one to the map and we also have to finish unconditionally synchronously.
|
|
must_not_register = thread_load_tasks.has(local_path) && p_cache_mode == ResourceFormatLoader::CACHE_MODE_IGNORE;
|
|
if (must_not_register) {
|
|
load_token->local_path.clear();
|
|
unregistered_load_task = load_task;
|
|
} else {
|
|
thread_load_tasks[local_path] = load_task;
|
|
}
|
|
|
|
load_task_ptr = must_not_register ? &unregistered_load_task : &thread_load_tasks[local_path];
|
|
}
|
|
|
|
run_on_current_thread = must_not_register || p_thread_mode == LOAD_THREAD_FROM_CURRENT;
|
|
|
|
if (run_on_current_thread) {
|
|
load_task_ptr->thread_id = Thread::get_caller_id();
|
|
} else {
|
|
load_task_ptr->task_id = WorkerThreadPool::get_singleton()->add_native_task(&ResourceLoader::_thread_load_function, load_task_ptr);
|
|
}
|
|
}
|
|
|
|
if (run_on_current_thread) {
|
|
_thread_load_function(load_task_ptr);
|
|
if (must_not_register) {
|
|
load_token->res_if_unregistered = load_task_ptr->resource;
|
|
}
|
|
}
|
|
|
|
return load_token;
|
|
}
|
|
|
|
float ResourceLoader::_dependency_get_progress(const String &p_path) {
|
|
if (thread_load_tasks.has(p_path)) {
|
|
ThreadLoadTask &load_task = thread_load_tasks[p_path];
|
|
float current_progress = 0.0;
|
|
int dep_count = load_task.sub_tasks.size();
|
|
if (dep_count > 0) {
|
|
for (const String &E : load_task.sub_tasks) {
|
|
current_progress += _dependency_get_progress(E);
|
|
}
|
|
current_progress /= float(dep_count);
|
|
current_progress *= 0.5;
|
|
current_progress += load_task.progress * 0.5;
|
|
} else {
|
|
current_progress = load_task.progress;
|
|
}
|
|
load_task.max_reported_progress = MAX(load_task.max_reported_progress, current_progress);
|
|
return load_task.max_reported_progress;
|
|
} else {
|
|
return 1.0; //assume finished loading it so it no longer exists
|
|
}
|
|
}
|
|
|
|
ResourceLoader::ThreadLoadStatus ResourceLoader::load_threaded_get_status(const String &p_path, float *r_progress) {
|
|
MutexLock thread_load_lock(thread_load_mutex);
|
|
|
|
if (!user_load_tokens.has(p_path)) {
|
|
print_verbose("load_threaded_get_status(): No threaded load for resource path '" + p_path + "' has been initiated or its result has already been collected.");
|
|
return THREAD_LOAD_INVALID_RESOURCE;
|
|
}
|
|
|
|
String local_path = _validate_local_path(p_path);
|
|
if (!thread_load_tasks.has(local_path)) {
|
|
#ifdef DEV_ENABLED
|
|
CRASH_NOW();
|
|
#endif
|
|
// On non-dev, be defensive and at least avoid crashing (at this point at least).
|
|
return THREAD_LOAD_INVALID_RESOURCE;
|
|
}
|
|
|
|
ThreadLoadTask &load_task = thread_load_tasks[local_path];
|
|
ThreadLoadStatus status;
|
|
status = load_task.status;
|
|
if (r_progress) {
|
|
*r_progress = _dependency_get_progress(local_path);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
Ref<Resource> ResourceLoader::load_threaded_get(const String &p_path, Error *r_error) {
|
|
if (r_error) {
|
|
*r_error = OK;
|
|
}
|
|
|
|
Ref<Resource> res;
|
|
{
|
|
MutexLock thread_load_lock(thread_load_mutex);
|
|
|
|
if (!user_load_tokens.has(p_path)) {
|
|
print_verbose("load_threaded_get(): No threaded load for resource path '" + p_path + "' has been initiated or its result has already been collected.");
|
|
if (r_error) {
|
|
*r_error = ERR_INVALID_PARAMETER;
|
|
}
|
|
return Ref<Resource>();
|
|
}
|
|
|
|
LoadToken *load_token = user_load_tokens[p_path];
|
|
if (!load_token) {
|
|
// This happens if requested from one thread and rapidly querying from another.
|
|
if (r_error) {
|
|
*r_error = ERR_BUSY;
|
|
}
|
|
return Ref<Resource>();
|
|
}
|
|
res = _load_complete_inner(*load_token, r_error, thread_load_lock);
|
|
if (load_token->unreference()) {
|
|
memdelete(load_token);
|
|
}
|
|
}
|
|
|
|
print_lt("GET: user load tokens: " + itos(user_load_tokens.size()));
|
|
|
|
return res;
|
|
}
|
|
|
|
Ref<Resource> ResourceLoader::_load_complete(LoadToken &p_load_token, Error *r_error) {
|
|
MutexLock thread_load_lock(thread_load_mutex);
|
|
return _load_complete_inner(p_load_token, r_error, thread_load_lock);
|
|
}
|
|
|
|
Ref<Resource> ResourceLoader::_load_complete_inner(LoadToken &p_load_token, Error *r_error, MutexLock<SafeBinaryMutex<BINARY_MUTEX_TAG>> &p_thread_load_lock) {
|
|
if (r_error) {
|
|
*r_error = OK;
|
|
}
|
|
|
|
if (!p_load_token.local_path.is_empty()) {
|
|
if (!thread_load_tasks.has(p_load_token.local_path)) {
|
|
#ifdef DEV_ENABLED
|
|
CRASH_NOW();
|
|
#endif
|
|
// On non-dev, be defensive and at least avoid crashing (at this point at least).
|
|
if (r_error) {
|
|
*r_error = ERR_BUG;
|
|
}
|
|
return Ref<Resource>();
|
|
}
|
|
|
|
ThreadLoadTask &load_task = thread_load_tasks[p_load_token.local_path];
|
|
|
|
if (load_task.status == THREAD_LOAD_IN_PROGRESS) {
|
|
DEV_ASSERT((load_task.task_id == 0) != (load_task.thread_id == 0));
|
|
|
|
if ((load_task.task_id != 0 && load_task.task_id == caller_task_id) ||
|
|
(load_task.thread_id != 0 && load_task.thread_id == Thread::get_caller_id())) {
|
|
// Load is in progress, but it's precisely this thread the one in charge.
|
|
// That means this is a cyclic load.
|
|
if (r_error) {
|
|
*r_error = ERR_BUSY;
|
|
}
|
|
return Ref<Resource>();
|
|
}
|
|
|
|
if (load_task.task_id != 0) {
|
|
// Loading thread is in the worker pool.
|
|
load_task.awaited = true;
|
|
thread_load_mutex.unlock();
|
|
Error err = WorkerThreadPool::get_singleton()->wait_for_task_completion(load_task.task_id);
|
|
if (err == ERR_BUSY) {
|
|
// The WorkerThreadPool has scheduled tasks in a way that the current load depends on
|
|
// another one in a lower stack frame. Restart such load here. When the stack is eventually
|
|
// unrolled, the original load will have been notified to go on.
|
|
#ifdef DEV_ENABLED
|
|
print_verbose("ResourceLoader: Load task happened to wait on another one deep in the call stack. Attempting to avoid deadlock by re-issuing the load now.");
|
|
#endif
|
|
// CACHE_MODE_IGNORE is needed because, otherwise, the new request would just see there's
|
|
// an ongoing load for that resource and wait for it again. This value forces a new load.
|
|
Ref<ResourceLoader::LoadToken> token = _load_start(load_task.local_path, load_task.type_hint, LOAD_THREAD_DISTRIBUTE, ResourceFormatLoader::CACHE_MODE_IGNORE);
|
|
Ref<Resource> resource = _load_complete(*token.ptr(), &err);
|
|
if (r_error) {
|
|
*r_error = err;
|
|
}
|
|
thread_load_mutex.lock();
|
|
return resource;
|
|
} else {
|
|
DEV_ASSERT(err == OK);
|
|
thread_load_mutex.lock();
|
|
}
|
|
} else {
|
|
// Loading thread is main or user thread.
|
|
if (!load_task.cond_var) {
|
|
load_task.cond_var = memnew(ConditionVariable);
|
|
}
|
|
do {
|
|
load_task.cond_var->wait(p_thread_load_lock);
|
|
DEV_ASSERT(thread_load_tasks.has(p_load_token.local_path) && p_load_token.get_reference_count());
|
|
} while (load_task.cond_var);
|
|
}
|
|
}
|
|
|
|
if (cleaning_tasks) {
|
|
load_task.resource = Ref<Resource>();
|
|
load_task.error = FAILED;
|
|
}
|
|
|
|
Ref<Resource> resource = load_task.resource;
|
|
if (r_error) {
|
|
*r_error = load_task.error;
|
|
}
|
|
return resource;
|
|
} else {
|
|
// Special case of an unregistered task.
|
|
// The resource should have been loaded by now.
|
|
Ref<Resource> resource = p_load_token.res_if_unregistered;
|
|
if (!resource.is_valid()) {
|
|
if (r_error) {
|
|
*r_error = FAILED;
|
|
}
|
|
}
|
|
return resource;
|
|
}
|
|
}
|
|
|
|
bool ResourceLoader::exists(const String &p_path, const String &p_type_hint) {
|
|
String local_path = _validate_local_path(p_path);
|
|
|
|
if (ResourceCache::has(local_path)) {
|
|
return true; // If cached, it probably exists
|
|
}
|
|
|
|
bool xl_remapped = false;
|
|
String path = _path_remap(local_path, &xl_remapped);
|
|
|
|
// Try all loaders and pick the first match for the type hint
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(path, p_type_hint)) {
|
|
continue;
|
|
}
|
|
|
|
if (loader[i]->exists(path)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void ResourceLoader::add_resource_format_loader(Ref<ResourceFormatLoader> p_format_loader, bool p_at_front) {
|
|
ERR_FAIL_COND(p_format_loader.is_null());
|
|
ERR_FAIL_COND(loader_count >= MAX_LOADERS);
|
|
|
|
if (p_at_front) {
|
|
for (int i = loader_count; i > 0; i--) {
|
|
loader[i] = loader[i - 1];
|
|
}
|
|
loader[0] = p_format_loader;
|
|
loader_count++;
|
|
} else {
|
|
loader[loader_count++] = p_format_loader;
|
|
}
|
|
}
|
|
|
|
void ResourceLoader::remove_resource_format_loader(Ref<ResourceFormatLoader> p_format_loader) {
|
|
ERR_FAIL_COND(p_format_loader.is_null());
|
|
|
|
// Find loader
|
|
int i = 0;
|
|
for (; i < loader_count; ++i) {
|
|
if (loader[i] == p_format_loader) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
ERR_FAIL_COND(i >= loader_count); // Not found
|
|
|
|
// Shift next loaders up
|
|
for (; i < loader_count - 1; ++i) {
|
|
loader[i] = loader[i + 1];
|
|
}
|
|
loader[loader_count - 1].unref();
|
|
--loader_count;
|
|
}
|
|
|
|
int ResourceLoader::get_import_order(const String &p_path) {
|
|
String local_path = _path_remap(_validate_local_path(p_path));
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(local_path)) {
|
|
continue;
|
|
}
|
|
|
|
return loader[i]->get_import_order(p_path);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
String ResourceLoader::get_import_group_file(const String &p_path) {
|
|
String local_path = _path_remap(_validate_local_path(p_path));
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(local_path)) {
|
|
continue;
|
|
}
|
|
|
|
return loader[i]->get_import_group_file(p_path);
|
|
}
|
|
|
|
return String(); //not found
|
|
}
|
|
|
|
bool ResourceLoader::is_import_valid(const String &p_path) {
|
|
String local_path = _path_remap(_validate_local_path(p_path));
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(local_path)) {
|
|
continue;
|
|
}
|
|
|
|
return loader[i]->is_import_valid(p_path);
|
|
}
|
|
|
|
return false; //not found
|
|
}
|
|
|
|
bool ResourceLoader::is_imported(const String &p_path) {
|
|
String local_path = _path_remap(_validate_local_path(p_path));
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(local_path)) {
|
|
continue;
|
|
}
|
|
|
|
return loader[i]->is_imported(p_path);
|
|
}
|
|
|
|
return false; //not found
|
|
}
|
|
|
|
void ResourceLoader::get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types) {
|
|
String local_path = _path_remap(_validate_local_path(p_path));
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(local_path)) {
|
|
continue;
|
|
}
|
|
|
|
loader[i]->get_dependencies(local_path, p_dependencies, p_add_types);
|
|
}
|
|
}
|
|
|
|
Error ResourceLoader::rename_dependencies(const String &p_path, const HashMap<String, String> &p_map) {
|
|
String local_path = _path_remap(_validate_local_path(p_path));
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(local_path)) {
|
|
continue;
|
|
}
|
|
|
|
return loader[i]->rename_dependencies(local_path, p_map);
|
|
}
|
|
|
|
return OK; // ??
|
|
}
|
|
|
|
void ResourceLoader::get_classes_used(const String &p_path, HashSet<StringName> *r_classes) {
|
|
String local_path = _validate_local_path(p_path);
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
if (!loader[i]->recognize_path(local_path)) {
|
|
continue;
|
|
}
|
|
|
|
return loader[i]->get_classes_used(p_path, r_classes);
|
|
}
|
|
}
|
|
|
|
String ResourceLoader::get_resource_type(const String &p_path) {
|
|
String local_path = _validate_local_path(p_path);
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
String result = loader[i]->get_resource_type(local_path);
|
|
if (!result.is_empty()) {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
String ResourceLoader::get_resource_script_class(const String &p_path) {
|
|
String local_path = _validate_local_path(p_path);
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
String result = loader[i]->get_resource_script_class(local_path);
|
|
if (!result.is_empty()) {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
ResourceUID::ID ResourceLoader::get_resource_uid(const String &p_path) {
|
|
String local_path = _validate_local_path(p_path);
|
|
|
|
for (int i = 0; i < loader_count; i++) {
|
|
ResourceUID::ID id = loader[i]->get_resource_uid(local_path);
|
|
if (id != ResourceUID::INVALID_ID) {
|
|
return id;
|
|
}
|
|
}
|
|
|
|
return ResourceUID::INVALID_ID;
|
|
}
|
|
|
|
String ResourceLoader::_path_remap(const String &p_path, bool *r_translation_remapped) {
|
|
String new_path = p_path;
|
|
|
|
if (translation_remaps.has(p_path)) {
|
|
// translation_remaps has the following format:
|
|
// { "res://path.png": PackedStringArray( "res://path-ru.png:ru", "res://path-de.png:de" ) }
|
|
|
|
// To find the path of the remapped resource, we extract the locale name after
|
|
// the last ':' to match the project locale.
|
|
|
|
// An extra remap may still be necessary afterwards due to the text -> binary converter on export.
|
|
|
|
String locale = TranslationServer::get_singleton()->get_locale();
|
|
ERR_FAIL_COND_V_MSG(locale.length() < 2, p_path, "Could not remap path '" + p_path + "' for translation as configured locale '" + locale + "' is invalid.");
|
|
|
|
Vector<String> &res_remaps = *translation_remaps.getptr(new_path);
|
|
|
|
int best_score = 0;
|
|
for (int i = 0; i < res_remaps.size(); i++) {
|
|
int split = res_remaps[i].rfind(":");
|
|
if (split == -1) {
|
|
continue;
|
|
}
|
|
String l = res_remaps[i].substr(split + 1).strip_edges();
|
|
int score = TranslationServer::get_singleton()->compare_locales(locale, l);
|
|
if (score > 0 && score >= best_score) {
|
|
new_path = res_remaps[i].left(split);
|
|
best_score = score;
|
|
if (score == 10) {
|
|
break; // Exact match, skip the rest.
|
|
}
|
|
}
|
|
}
|
|
|
|
if (r_translation_remapped) {
|
|
*r_translation_remapped = true;
|
|
}
|
|
|
|
// Fallback to p_path if new_path does not exist.
|
|
if (!FileAccess::exists(new_path + ".import") && !FileAccess::exists(new_path)) {
|
|
WARN_PRINT(vformat("Translation remap '%s' does not exist. Falling back to '%s'.", new_path, p_path));
|
|
new_path = p_path;
|
|
}
|
|
}
|
|
|
|
if (path_remaps.has(new_path)) {
|
|
new_path = path_remaps[new_path];
|
|
} else {
|
|
// Try file remap.
|
|
Error err;
|
|
Ref<FileAccess> f = FileAccess::open(new_path + ".remap", FileAccess::READ, &err);
|
|
if (f.is_valid()) {
|
|
VariantParser::StreamFile stream;
|
|
stream.f = f;
|
|
|
|
String assign;
|
|
Variant value;
|
|
VariantParser::Tag next_tag;
|
|
|
|
int lines = 0;
|
|
String error_text;
|
|
while (true) {
|
|
assign = Variant();
|
|
next_tag.fields.clear();
|
|
next_tag.name = String();
|
|
|
|
err = VariantParser::parse_tag_assign_eof(&stream, lines, error_text, next_tag, assign, value, nullptr, true);
|
|
if (err == ERR_FILE_EOF) {
|
|
break;
|
|
} else if (err != OK) {
|
|
ERR_PRINT("Parse error: " + p_path + ".remap:" + itos(lines) + " error: " + error_text + ".");
|
|
break;
|
|
}
|
|
|
|
if (assign == "path") {
|
|
new_path = value;
|
|
break;
|
|
} else if (next_tag.name != "remap") {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return new_path;
|
|
}
|
|
|
|
String ResourceLoader::import_remap(const String &p_path) {
|
|
if (ResourceFormatImporter::get_singleton()->recognize_path(p_path)) {
|
|
return ResourceFormatImporter::get_singleton()->get_internal_resource_path(p_path);
|
|
}
|
|
|
|
return p_path;
|
|
}
|
|
|
|
String ResourceLoader::path_remap(const String &p_path) {
|
|
return _path_remap(p_path);
|
|
}
|
|
|
|
void ResourceLoader::reload_translation_remaps() {
|
|
ResourceCache::lock.lock();
|
|
|
|
List<Resource *> to_reload;
|
|
SelfList<Resource> *E = remapped_list.first();
|
|
|
|
while (E) {
|
|
to_reload.push_back(E->self());
|
|
E = E->next();
|
|
}
|
|
|
|
ResourceCache::lock.unlock();
|
|
|
|
//now just make sure to not delete any of these resources while changing locale..
|
|
while (to_reload.front()) {
|
|
to_reload.front()->get()->reload_from_file();
|
|
to_reload.pop_front();
|
|
}
|
|
}
|
|
|
|
void ResourceLoader::load_translation_remaps() {
|
|
if (!ProjectSettings::get_singleton()->has_setting("internationalization/locale/translation_remaps")) {
|
|
return;
|
|
}
|
|
|
|
Dictionary remaps = GLOBAL_GET("internationalization/locale/translation_remaps");
|
|
List<Variant> keys;
|
|
remaps.get_key_list(&keys);
|
|
for (const Variant &E : keys) {
|
|
Array langs = remaps[E];
|
|
Vector<String> lang_remaps;
|
|
lang_remaps.resize(langs.size());
|
|
for (int i = 0; i < langs.size(); i++) {
|
|
lang_remaps.write[i] = langs[i];
|
|
}
|
|
|
|
translation_remaps[String(E)] = lang_remaps;
|
|
}
|
|
}
|
|
|
|
void ResourceLoader::clear_translation_remaps() {
|
|
translation_remaps.clear();
|
|
while (remapped_list.first() != nullptr) {
|
|
remapped_list.remove(remapped_list.first());
|
|
}
|
|
}
|
|
|
|
void ResourceLoader::clear_thread_load_tasks() {
|
|
// Bring the thing down as quickly as possible without causing deadlocks or leaks.
|
|
|
|
thread_load_mutex.lock();
|
|
cleaning_tasks = true;
|
|
|
|
while (true) {
|
|
bool none_running = true;
|
|
if (thread_load_tasks.size()) {
|
|
for (KeyValue<String, ResourceLoader::ThreadLoadTask> &E : thread_load_tasks) {
|
|
if (E.value.status == THREAD_LOAD_IN_PROGRESS) {
|
|
if (E.value.cond_var) {
|
|
E.value.cond_var->notify_all();
|
|
memdelete(E.value.cond_var);
|
|
E.value.cond_var = nullptr;
|
|
}
|
|
none_running = false;
|
|
}
|
|
}
|
|
}
|
|
if (none_running) {
|
|
break;
|
|
}
|
|
thread_load_mutex.unlock();
|
|
OS::get_singleton()->delay_usec(1000);
|
|
thread_load_mutex.lock();
|
|
}
|
|
|
|
while (user_load_tokens.begin()) {
|
|
// User load tokens remove themselves from the map on destruction.
|
|
memdelete(user_load_tokens.begin()->value);
|
|
}
|
|
user_load_tokens.clear();
|
|
|
|
thread_load_tasks.clear();
|
|
|
|
cleaning_tasks = false;
|
|
thread_load_mutex.unlock();
|
|
}
|
|
|
|
void ResourceLoader::load_path_remaps() {
|
|
if (!ProjectSettings::get_singleton()->has_setting("path_remap/remapped_paths")) {
|
|
return;
|
|
}
|
|
|
|
Vector<String> remaps = GLOBAL_GET("path_remap/remapped_paths");
|
|
int rc = remaps.size();
|
|
ERR_FAIL_COND(rc & 1); //must be even
|
|
const String *r = remaps.ptr();
|
|
|
|
for (int i = 0; i < rc; i += 2) {
|
|
path_remaps[r[i]] = r[i + 1];
|
|
}
|
|
}
|
|
|
|
void ResourceLoader::clear_path_remaps() {
|
|
path_remaps.clear();
|
|
}
|
|
|
|
void ResourceLoader::set_load_callback(ResourceLoadedCallback p_callback) {
|
|
_loaded_callback = p_callback;
|
|
}
|
|
|
|
ResourceLoadedCallback ResourceLoader::_loaded_callback = nullptr;
|
|
|
|
Ref<ResourceFormatLoader> ResourceLoader::_find_custom_resource_format_loader(String path) {
|
|
for (int i = 0; i < loader_count; ++i) {
|
|
if (loader[i]->get_script_instance() && loader[i]->get_script_instance()->get_script()->get_path() == path) {
|
|
return loader[i];
|
|
}
|
|
}
|
|
return Ref<ResourceFormatLoader>();
|
|
}
|
|
|
|
bool ResourceLoader::add_custom_resource_format_loader(String script_path) {
|
|
if (_find_custom_resource_format_loader(script_path).is_valid()) {
|
|
return false;
|
|
}
|
|
|
|
Ref<Resource> res = ResourceLoader::load(script_path);
|
|
ERR_FAIL_COND_V(res.is_null(), false);
|
|
ERR_FAIL_COND_V(!res->is_class("Script"), false);
|
|
|
|
Ref<Script> s = res;
|
|
StringName ibt = s->get_instance_base_type();
|
|
bool valid_type = ClassDB::is_parent_class(ibt, "ResourceFormatLoader");
|
|
ERR_FAIL_COND_V_MSG(!valid_type, false, vformat("Failed to add a custom resource loader, script '%s' does not inherit 'ResourceFormatLoader'.", script_path));
|
|
|
|
Object *obj = ClassDB::instantiate(ibt);
|
|
ERR_FAIL_NULL_V_MSG(obj, false, vformat("Failed to add a custom resource loader, cannot instantiate '%s'.", ibt));
|
|
|
|
Ref<ResourceFormatLoader> crl = Object::cast_to<ResourceFormatLoader>(obj);
|
|
crl->set_script(s);
|
|
ResourceLoader::add_resource_format_loader(crl);
|
|
|
|
return true;
|
|
}
|
|
|
|
void ResourceLoader::set_create_missing_resources_if_class_unavailable(bool p_enable) {
|
|
create_missing_resources_if_class_unavailable = p_enable;
|
|
}
|
|
|
|
void ResourceLoader::add_custom_loaders() {
|
|
// Custom loaders registration exploits global class names
|
|
|
|
String custom_loader_base_class = ResourceFormatLoader::get_class_static();
|
|
|
|
List<StringName> global_classes;
|
|
ScriptServer::get_global_class_list(&global_classes);
|
|
|
|
for (const StringName &class_name : global_classes) {
|
|
StringName base_class = ScriptServer::get_global_class_native_base(class_name);
|
|
|
|
if (base_class == custom_loader_base_class) {
|
|
String path = ScriptServer::get_global_class_path(class_name);
|
|
add_custom_resource_format_loader(path);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ResourceLoader::remove_custom_loaders() {
|
|
Vector<Ref<ResourceFormatLoader>> custom_loaders;
|
|
for (int i = 0; i < loader_count; ++i) {
|
|
if (loader[i]->get_script_instance()) {
|
|
custom_loaders.push_back(loader[i]);
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < custom_loaders.size(); ++i) {
|
|
remove_resource_format_loader(custom_loaders[i]);
|
|
}
|
|
}
|
|
|
|
bool ResourceLoader::is_cleaning_tasks() {
|
|
MutexLock lock(thread_load_mutex);
|
|
return cleaning_tasks;
|
|
}
|
|
|
|
void ResourceLoader::initialize() {}
|
|
|
|
void ResourceLoader::finalize() {}
|
|
|
|
ResourceLoadErrorNotify ResourceLoader::err_notify = nullptr;
|
|
DependencyErrorNotify ResourceLoader::dep_err_notify = nullptr;
|
|
|
|
bool ResourceLoader::create_missing_resources_if_class_unavailable = false;
|
|
bool ResourceLoader::abort_on_missing_resource = true;
|
|
bool ResourceLoader::timestamp_on_load = false;
|
|
|
|
thread_local int ResourceLoader::load_nesting = 0;
|
|
thread_local WorkerThreadPool::TaskID ResourceLoader::caller_task_id = 0;
|
|
thread_local Vector<String> *ResourceLoader::load_paths_stack;
|
|
|
|
template <>
|
|
thread_local uint32_t SafeBinaryMutex<ResourceLoader::BINARY_MUTEX_TAG>::count = 0;
|
|
SafeBinaryMutex<ResourceLoader::BINARY_MUTEX_TAG> ResourceLoader::thread_load_mutex;
|
|
HashMap<String, ResourceLoader::ThreadLoadTask> ResourceLoader::thread_load_tasks;
|
|
bool ResourceLoader::cleaning_tasks = false;
|
|
|
|
HashMap<String, ResourceLoader::LoadToken *> ResourceLoader::user_load_tokens;
|
|
|
|
SelfList<Resource>::List ResourceLoader::remapped_list;
|
|
HashMap<String, Vector<String>> ResourceLoader::translation_remaps;
|
|
HashMap<String, String> ResourceLoader::path_remaps;
|
|
|
|
ResourceLoaderImport ResourceLoader::import = nullptr;
|