62d9ce6445
These deferring measures were added to aid threaded resource loading in being safe. They were removed as seemingly unneeded, but it seems they are needed so resources involved in threaded loading interact with others only after "sync points".
685 lines
20 KiB
C++
685 lines
20 KiB
C++
/**************************************************************************/
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/* resource.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.h"
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#include "core/io/file_access.h"
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#include "core/io/resource_loader.h"
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#include "core/math/math_funcs.h"
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#include "core/object/script_language.h"
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#include "core/os/os.h"
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#include "scene/main/node.h" //only so casting works
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#include <stdio.h>
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void Resource::emit_changed() {
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if (ResourceLoader::is_within_load() && MessageQueue::get_main_singleton() != MessageQueue::get_singleton() && !MessageQueue::get_singleton()->is_flushing()) {
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// Let the connection happen on the call queue, later, since signals are not thread-safe.
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call_deferred("emit_signal", CoreStringName(changed));
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} else {
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emit_signal(CoreStringName(changed));
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}
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}
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void Resource::_resource_path_changed() {
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}
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void Resource::set_path(const String &p_path, bool p_take_over) {
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if (path_cache == p_path) {
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return;
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}
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if (p_path.is_empty()) {
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p_take_over = false; // Can't take over an empty path
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}
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ResourceCache::lock.lock();
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if (!path_cache.is_empty()) {
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ResourceCache::resources.erase(path_cache);
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}
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path_cache = "";
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Ref<Resource> existing = ResourceCache::get_ref(p_path);
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if (existing.is_valid()) {
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if (p_take_over) {
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existing->path_cache = String();
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ResourceCache::resources.erase(p_path);
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} else {
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ResourceCache::lock.unlock();
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ERR_FAIL_MSG("Another resource is loaded from path '" + p_path + "' (possible cyclic resource inclusion).");
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}
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}
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path_cache = p_path;
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if (!path_cache.is_empty()) {
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ResourceCache::resources[path_cache] = this;
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}
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ResourceCache::lock.unlock();
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_resource_path_changed();
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}
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String Resource::get_path() const {
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return path_cache;
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}
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void Resource::set_path_cache(const String &p_path) {
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path_cache = p_path;
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}
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String Resource::generate_scene_unique_id() {
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// Generate a unique enough hash, but still user-readable.
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// If it's not unique it does not matter because the saver will try again.
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OS::DateTime dt = OS::get_singleton()->get_datetime();
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uint32_t hash = hash_murmur3_one_32(OS::get_singleton()->get_ticks_usec());
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hash = hash_murmur3_one_32(dt.year, hash);
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hash = hash_murmur3_one_32(dt.month, hash);
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hash = hash_murmur3_one_32(dt.day, hash);
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hash = hash_murmur3_one_32(dt.hour, hash);
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hash = hash_murmur3_one_32(dt.minute, hash);
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hash = hash_murmur3_one_32(dt.second, hash);
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hash = hash_murmur3_one_32(Math::rand(), hash);
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static constexpr uint32_t characters = 5;
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static constexpr uint32_t char_count = ('z' - 'a');
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static constexpr uint32_t base = char_count + ('9' - '0');
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String id;
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for (uint32_t i = 0; i < characters; i++) {
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uint32_t c = hash % base;
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if (c < char_count) {
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id += String::chr('a' + c);
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} else {
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id += String::chr('0' + (c - char_count));
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}
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hash /= base;
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}
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return id;
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}
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void Resource::set_scene_unique_id(const String &p_id) {
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bool is_valid = true;
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for (int i = 0; i < p_id.length(); i++) {
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if (!is_ascii_identifier_char(p_id[i])) {
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is_valid = false;
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scene_unique_id = Resource::generate_scene_unique_id();
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break;
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}
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}
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ERR_FAIL_COND_MSG(!is_valid, "The scene unique ID must contain only letters, numbers, and underscores.");
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scene_unique_id = p_id;
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}
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String Resource::get_scene_unique_id() const {
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return scene_unique_id;
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}
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void Resource::set_name(const String &p_name) {
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name = p_name;
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emit_changed();
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}
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String Resource::get_name() const {
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return name;
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}
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void Resource::update_configuration_warning() {
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if (_update_configuration_warning) {
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_update_configuration_warning();
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}
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}
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bool Resource::editor_can_reload_from_file() {
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return true; //by default yes
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}
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void Resource::connect_changed(const Callable &p_callable, uint32_t p_flags) {
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if (ResourceLoader::is_within_load() && MessageQueue::get_main_singleton() != MessageQueue::get_singleton() && !MessageQueue::get_singleton()->is_flushing()) {
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// Let the check and connection happen on the call queue, later, since signals are not thread-safe.
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callable_mp(this, &Resource::connect_changed).call_deferred(p_callable, p_flags);
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return;
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}
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if (!is_connected(CoreStringName(changed), p_callable) || p_flags & CONNECT_REFERENCE_COUNTED) {
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connect(CoreStringName(changed), p_callable, p_flags);
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}
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}
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void Resource::disconnect_changed(const Callable &p_callable) {
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if (ResourceLoader::is_within_load() && MessageQueue::get_main_singleton() != MessageQueue::get_singleton() && !MessageQueue::get_singleton()->is_flushing()) {
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// Let the check and disconnection happen on the call queue, later, since signals are not thread-safe.
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callable_mp(this, &Resource::disconnect_changed).call_deferred(p_callable);
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return;
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}
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if (is_connected(CoreStringName(changed), p_callable)) {
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disconnect(CoreStringName(changed), p_callable);
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}
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}
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void Resource::reset_state() {
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}
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Error Resource::copy_from(const Ref<Resource> &p_resource) {
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ERR_FAIL_COND_V(p_resource.is_null(), ERR_INVALID_PARAMETER);
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if (get_class() != p_resource->get_class()) {
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return ERR_INVALID_PARAMETER;
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}
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reset_state(); // May want to reset state.
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List<PropertyInfo> pi;
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p_resource->get_property_list(&pi);
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for (const PropertyInfo &E : pi) {
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if (!(E.usage & PROPERTY_USAGE_STORAGE)) {
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continue;
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}
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if (E.name == "resource_path") {
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continue; //do not change path
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}
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set(E.name, p_resource->get(E.name));
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}
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return OK;
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}
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void Resource::reload_from_file() {
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String path = get_path();
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if (!path.is_resource_file()) {
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return;
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}
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Ref<Resource> s = ResourceLoader::load(ResourceLoader::path_remap(path), get_class(), ResourceFormatLoader::CACHE_MODE_IGNORE);
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if (!s.is_valid()) {
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return;
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}
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copy_from(s);
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}
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void Resource::_dupe_sub_resources(Variant &r_variant, Node *p_for_scene, HashMap<Ref<Resource>, Ref<Resource>> &p_remap_cache) {
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switch (r_variant.get_type()) {
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case Variant::ARRAY: {
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Array a = r_variant;
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for (int i = 0; i < a.size(); i++) {
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_dupe_sub_resources(a[i], p_for_scene, p_remap_cache);
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}
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} break;
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case Variant::DICTIONARY: {
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Dictionary d = r_variant;
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List<Variant> keys;
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d.get_key_list(&keys);
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for (Variant &k : keys) {
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if (k.get_type() == Variant::OBJECT) {
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// Replace in dictionary key.
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Ref<Resource> sr = k;
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if (sr.is_valid() && sr->is_local_to_scene()) {
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if (p_remap_cache.has(sr)) {
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d[p_remap_cache[sr]] = d[k];
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d.erase(k);
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} else {
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Ref<Resource> dupe = sr->duplicate_for_local_scene(p_for_scene, p_remap_cache);
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d[dupe] = d[k];
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d.erase(k);
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p_remap_cache[sr] = dupe;
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}
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}
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} else {
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_dupe_sub_resources(k, p_for_scene, p_remap_cache);
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}
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_dupe_sub_resources(d[k], p_for_scene, p_remap_cache);
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}
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} break;
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case Variant::OBJECT: {
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Ref<Resource> sr = r_variant;
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if (sr.is_valid() && sr->is_local_to_scene()) {
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if (p_remap_cache.has(sr)) {
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r_variant = p_remap_cache[sr];
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} else {
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Ref<Resource> dupe = sr->duplicate_for_local_scene(p_for_scene, p_remap_cache);
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r_variant = dupe;
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p_remap_cache[sr] = dupe;
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}
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}
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} break;
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default: {
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}
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}
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}
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Ref<Resource> Resource::duplicate_for_local_scene(Node *p_for_scene, HashMap<Ref<Resource>, Ref<Resource>> &p_remap_cache) {
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List<PropertyInfo> plist;
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get_property_list(&plist);
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Ref<Resource> r = Object::cast_to<Resource>(ClassDB::instantiate(get_class()));
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ERR_FAIL_COND_V(r.is_null(), Ref<Resource>());
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r->local_scene = p_for_scene;
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for (const PropertyInfo &E : plist) {
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if (!(E.usage & PROPERTY_USAGE_STORAGE)) {
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continue;
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}
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Variant p = get(E.name).duplicate(true);
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_dupe_sub_resources(p, p_for_scene, p_remap_cache);
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r->set(E.name, p);
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}
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return r;
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}
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void Resource::_find_sub_resources(const Variant &p_variant, HashSet<Ref<Resource>> &p_resources_found) {
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switch (p_variant.get_type()) {
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case Variant::ARRAY: {
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Array a = p_variant;
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for (int i = 0; i < a.size(); i++) {
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_find_sub_resources(a[i], p_resources_found);
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}
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} break;
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case Variant::DICTIONARY: {
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Dictionary d = p_variant;
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List<Variant> keys;
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d.get_key_list(&keys);
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for (const Variant &k : keys) {
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_find_sub_resources(k, p_resources_found);
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_find_sub_resources(d[k], p_resources_found);
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}
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} break;
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case Variant::OBJECT: {
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Ref<Resource> r = p_variant;
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if (r.is_valid()) {
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p_resources_found.insert(r);
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}
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} break;
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default: {
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}
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}
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}
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void Resource::configure_for_local_scene(Node *p_for_scene, HashMap<Ref<Resource>, Ref<Resource>> &p_remap_cache) {
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List<PropertyInfo> plist;
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get_property_list(&plist);
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reset_local_to_scene();
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local_scene = p_for_scene;
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for (const PropertyInfo &E : plist) {
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if (!(E.usage & PROPERTY_USAGE_STORAGE)) {
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continue;
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}
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Variant p = get(E.name);
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HashSet<Ref<Resource>> sub_resources;
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_find_sub_resources(p, sub_resources);
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for (Ref<Resource> sr : sub_resources) {
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if (sr->is_local_to_scene()) {
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if (!p_remap_cache.has(sr)) {
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sr->configure_for_local_scene(p_for_scene, p_remap_cache);
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p_remap_cache[sr] = sr;
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}
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}
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}
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}
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}
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Ref<Resource> Resource::duplicate(bool p_subresources) const {
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List<PropertyInfo> plist;
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get_property_list(&plist);
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Ref<Resource> r = static_cast<Resource *>(ClassDB::instantiate(get_class()));
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ERR_FAIL_COND_V(r.is_null(), Ref<Resource>());
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for (const PropertyInfo &E : plist) {
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if (!(E.usage & PROPERTY_USAGE_STORAGE)) {
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continue;
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}
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Variant p = get(E.name);
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switch (p.get_type()) {
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case Variant::Type::DICTIONARY:
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case Variant::Type::ARRAY:
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case Variant::Type::PACKED_BYTE_ARRAY:
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case Variant::Type::PACKED_COLOR_ARRAY:
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case Variant::Type::PACKED_INT32_ARRAY:
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case Variant::Type::PACKED_INT64_ARRAY:
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case Variant::Type::PACKED_FLOAT32_ARRAY:
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case Variant::Type::PACKED_FLOAT64_ARRAY:
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case Variant::Type::PACKED_STRING_ARRAY:
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case Variant::Type::PACKED_VECTOR2_ARRAY:
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case Variant::Type::PACKED_VECTOR3_ARRAY:
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case Variant::Type::PACKED_VECTOR4_ARRAY: {
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r->set(E.name, p.duplicate(p_subresources));
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} break;
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case Variant::Type::OBJECT: {
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if (!(E.usage & PROPERTY_USAGE_NEVER_DUPLICATE) && (p_subresources || (E.usage & PROPERTY_USAGE_ALWAYS_DUPLICATE))) {
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Ref<Resource> sr = p;
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if (sr.is_valid()) {
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r->set(E.name, sr->duplicate(p_subresources));
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}
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} else {
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r->set(E.name, p);
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}
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} break;
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default: {
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r->set(E.name, p);
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}
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}
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}
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return r;
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}
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void Resource::_set_path(const String &p_path) {
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set_path(p_path, false);
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}
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void Resource::_take_over_path(const String &p_path) {
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set_path(p_path, true);
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}
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RID Resource::get_rid() const {
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if (get_script_instance()) {
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Callable::CallError ce;
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RID ret = get_script_instance()->callp(SNAME("_get_rid"), nullptr, 0, ce);
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if (ce.error == Callable::CallError::CALL_OK && ret.is_valid()) {
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return ret;
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}
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}
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if (_get_extension() && _get_extension()->get_rid) {
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RID ret = RID::from_uint64(_get_extension()->get_rid(_get_extension_instance()));
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if (ret.is_valid()) {
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return ret;
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}
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}
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return RID();
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}
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#ifdef TOOLS_ENABLED
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uint32_t Resource::hash_edited_version_for_preview() const {
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uint32_t hash = hash_murmur3_one_32(get_edited_version());
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List<PropertyInfo> plist;
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get_property_list(&plist);
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for (const PropertyInfo &E : plist) {
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if (E.usage & PROPERTY_USAGE_STORAGE && E.type == Variant::OBJECT && E.hint == PROPERTY_HINT_RESOURCE_TYPE) {
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Ref<Resource> res = get(E.name);
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if (res.is_valid()) {
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hash = hash_murmur3_one_32(res->hash_edited_version_for_preview(), hash);
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}
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}
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}
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return hash;
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}
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#endif
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void Resource::set_local_to_scene(bool p_enable) {
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local_to_scene = p_enable;
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}
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bool Resource::is_local_to_scene() const {
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return local_to_scene;
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}
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Node *Resource::get_local_scene() const {
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if (local_scene) {
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return local_scene;
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}
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if (_get_local_scene_func) {
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return _get_local_scene_func();
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}
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return nullptr;
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}
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void Resource::setup_local_to_scene() {
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emit_signal(SNAME("setup_local_to_scene_requested"));
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GDVIRTUAL_CALL(_setup_local_to_scene);
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}
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void Resource::reset_local_to_scene() {
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// Restores the state as if setup_local_to_scene() hadn't been called.
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}
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Node *(*Resource::_get_local_scene_func)() = nullptr;
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void (*Resource::_update_configuration_warning)() = nullptr;
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void Resource::set_as_translation_remapped(bool p_remapped) {
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if (remapped_list.in_list() == p_remapped) {
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return;
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}
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ResourceCache::lock.lock();
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if (p_remapped) {
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ResourceLoader::remapped_list.add(&remapped_list);
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} else {
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ResourceLoader::remapped_list.remove(&remapped_list);
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}
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ResourceCache::lock.unlock();
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}
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#ifdef TOOLS_ENABLED
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//helps keep IDs same number when loading/saving scenes. -1 clears ID and it Returns -1 when no id stored
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void Resource::set_id_for_path(const String &p_path, const String &p_id) {
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if (p_id.is_empty()) {
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ResourceCache::path_cache_lock.write_lock();
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ResourceCache::resource_path_cache[p_path].erase(get_path());
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ResourceCache::path_cache_lock.write_unlock();
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} else {
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ResourceCache::path_cache_lock.write_lock();
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ResourceCache::resource_path_cache[p_path][get_path()] = p_id;
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ResourceCache::path_cache_lock.write_unlock();
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}
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}
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String Resource::get_id_for_path(const String &p_path) const {
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ResourceCache::path_cache_lock.read_lock();
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if (ResourceCache::resource_path_cache[p_path].has(get_path())) {
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String result = ResourceCache::resource_path_cache[p_path][get_path()];
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ResourceCache::path_cache_lock.read_unlock();
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return result;
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} else {
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ResourceCache::path_cache_lock.read_unlock();
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return "";
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}
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}
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#endif
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void Resource::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_path", "path"), &Resource::_set_path);
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ClassDB::bind_method(D_METHOD("take_over_path", "path"), &Resource::_take_over_path);
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ClassDB::bind_method(D_METHOD("get_path"), &Resource::get_path);
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ClassDB::bind_method(D_METHOD("set_name", "name"), &Resource::set_name);
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ClassDB::bind_method(D_METHOD("get_name"), &Resource::get_name);
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ClassDB::bind_method(D_METHOD("get_rid"), &Resource::get_rid);
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ClassDB::bind_method(D_METHOD("set_local_to_scene", "enable"), &Resource::set_local_to_scene);
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ClassDB::bind_method(D_METHOD("is_local_to_scene"), &Resource::is_local_to_scene);
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ClassDB::bind_method(D_METHOD("get_local_scene"), &Resource::get_local_scene);
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ClassDB::bind_method(D_METHOD("setup_local_to_scene"), &Resource::setup_local_to_scene);
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ClassDB::bind_static_method("Resource", D_METHOD("generate_scene_unique_id"), &Resource::generate_scene_unique_id);
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ClassDB::bind_method(D_METHOD("set_scene_unique_id", "id"), &Resource::set_scene_unique_id);
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ClassDB::bind_method(D_METHOD("get_scene_unique_id"), &Resource::get_scene_unique_id);
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ClassDB::bind_method(D_METHOD("emit_changed"), &Resource::emit_changed);
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ClassDB::bind_method(D_METHOD("duplicate", "subresources"), &Resource::duplicate, DEFVAL(false));
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ADD_SIGNAL(MethodInfo("changed"));
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ADD_SIGNAL(MethodInfo("setup_local_to_scene_requested"));
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ADD_GROUP("Resource", "resource_");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "resource_local_to_scene"), "set_local_to_scene", "is_local_to_scene");
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "resource_path", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "set_path", "get_path");
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "resource_name"), "set_name", "get_name");
|
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "resource_scene_unique_id", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_scene_unique_id", "get_scene_unique_id");
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|
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MethodInfo get_rid_bind("_get_rid");
|
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get_rid_bind.return_val.type = Variant::RID;
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|
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::ClassDB::add_virtual_method(get_class_static(), get_rid_bind, true, Vector<String>(), true);
|
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GDVIRTUAL_BIND(_setup_local_to_scene);
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}
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Resource::Resource() :
|
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remapped_list(this) {}
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|
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Resource::~Resource() {
|
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if (unlikely(path_cache.is_empty())) {
|
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return;
|
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}
|
|
|
|
ResourceCache::lock.lock();
|
|
// Only unregister from the cache if this is the actual resource listed there.
|
|
// (Other resources can have the same value in `path_cache` if loaded with `CACHE_IGNORE`.)
|
|
HashMap<String, Resource *>::Iterator E = ResourceCache::resources.find(path_cache);
|
|
if (likely(E && E->value == this)) {
|
|
ResourceCache::resources.remove(E);
|
|
}
|
|
ResourceCache::lock.unlock();
|
|
}
|
|
|
|
HashMap<String, Resource *> ResourceCache::resources;
|
|
#ifdef TOOLS_ENABLED
|
|
HashMap<String, HashMap<String, String>> ResourceCache::resource_path_cache;
|
|
#endif
|
|
|
|
Mutex ResourceCache::lock;
|
|
#ifdef TOOLS_ENABLED
|
|
RWLock ResourceCache::path_cache_lock;
|
|
#endif
|
|
|
|
void ResourceCache::clear() {
|
|
if (!resources.is_empty()) {
|
|
if (OS::get_singleton()->is_stdout_verbose()) {
|
|
ERR_PRINT(vformat("%d resources still in use at exit.", resources.size()));
|
|
for (const KeyValue<String, Resource *> &E : resources) {
|
|
print_line(vformat("Resource still in use: %s (%s)", E.key, E.value->get_class()));
|
|
}
|
|
} else {
|
|
ERR_PRINT(vformat("%d resources still in use at exit (run with --verbose for details).", resources.size()));
|
|
}
|
|
}
|
|
|
|
resources.clear();
|
|
}
|
|
|
|
bool ResourceCache::has(const String &p_path) {
|
|
lock.lock();
|
|
|
|
Resource **res = resources.getptr(p_path);
|
|
|
|
if (res && (*res)->get_reference_count() == 0) {
|
|
// This resource is in the process of being deleted, ignore its existence.
|
|
(*res)->path_cache = String();
|
|
resources.erase(p_path);
|
|
res = nullptr;
|
|
}
|
|
|
|
lock.unlock();
|
|
|
|
if (!res) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
Ref<Resource> ResourceCache::get_ref(const String &p_path) {
|
|
Ref<Resource> ref;
|
|
lock.lock();
|
|
|
|
Resource **res = resources.getptr(p_path);
|
|
|
|
if (res) {
|
|
ref = Ref<Resource>(*res);
|
|
}
|
|
|
|
if (res && !ref.is_valid()) {
|
|
// This resource is in the process of being deleted, ignore its existence
|
|
(*res)->path_cache = String();
|
|
resources.erase(p_path);
|
|
res = nullptr;
|
|
}
|
|
|
|
lock.unlock();
|
|
|
|
return ref;
|
|
}
|
|
|
|
void ResourceCache::get_cached_resources(List<Ref<Resource>> *p_resources) {
|
|
lock.lock();
|
|
|
|
LocalVector<String> to_remove;
|
|
|
|
for (KeyValue<String, Resource *> &E : resources) {
|
|
Ref<Resource> ref = Ref<Resource>(E.value);
|
|
|
|
if (!ref.is_valid()) {
|
|
// This resource is in the process of being deleted, ignore its existence
|
|
E.value->path_cache = String();
|
|
to_remove.push_back(E.key);
|
|
continue;
|
|
}
|
|
|
|
p_resources->push_back(ref);
|
|
}
|
|
|
|
for (const String &E : to_remove) {
|
|
resources.erase(E);
|
|
}
|
|
|
|
lock.unlock();
|
|
}
|
|
|
|
int ResourceCache::get_cached_resource_count() {
|
|
lock.lock();
|
|
int rc = resources.size();
|
|
lock.unlock();
|
|
|
|
return rc;
|
|
}
|