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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".
686 lines
20 KiB
C++
686 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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|
}
|
|
|
|
ResourceCache::lock.unlock();
|
|
}
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
//helps keep IDs same number when loading/saving scenes. -1 clears ID and it Returns -1 when no id stored
|
|
void Resource::set_id_for_path(const String &p_path, const String &p_id) {
|
|
if (p_id.is_empty()) {
|
|
ResourceCache::path_cache_lock.write_lock();
|
|
ResourceCache::resource_path_cache[p_path].erase(get_path());
|
|
ResourceCache::path_cache_lock.write_unlock();
|
|
} else {
|
|
ResourceCache::path_cache_lock.write_lock();
|
|
ResourceCache::resource_path_cache[p_path][get_path()] = p_id;
|
|
ResourceCache::path_cache_lock.write_unlock();
|
|
}
|
|
}
|
|
|
|
String Resource::get_id_for_path(const String &p_path) const {
|
|
ResourceCache::path_cache_lock.read_lock();
|
|
if (ResourceCache::resource_path_cache[p_path].has(get_path())) {
|
|
String result = ResourceCache::resource_path_cache[p_path][get_path()];
|
|
ResourceCache::path_cache_lock.read_unlock();
|
|
return result;
|
|
} else {
|
|
ResourceCache::path_cache_lock.read_unlock();
|
|
return "";
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void Resource::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_path", "path"), &Resource::_set_path);
|
|
ClassDB::bind_method(D_METHOD("take_over_path", "path"), &Resource::_take_over_path);
|
|
ClassDB::bind_method(D_METHOD("get_path"), &Resource::get_path);
|
|
ClassDB::bind_method(D_METHOD("set_name", "name"), &Resource::set_name);
|
|
ClassDB::bind_method(D_METHOD("get_name"), &Resource::get_name);
|
|
ClassDB::bind_method(D_METHOD("get_rid"), &Resource::get_rid);
|
|
ClassDB::bind_method(D_METHOD("set_local_to_scene", "enable"), &Resource::set_local_to_scene);
|
|
ClassDB::bind_method(D_METHOD("is_local_to_scene"), &Resource::is_local_to_scene);
|
|
ClassDB::bind_method(D_METHOD("get_local_scene"), &Resource::get_local_scene);
|
|
ClassDB::bind_method(D_METHOD("setup_local_to_scene"), &Resource::setup_local_to_scene);
|
|
|
|
ClassDB::bind_static_method("Resource", D_METHOD("generate_scene_unique_id"), &Resource::generate_scene_unique_id);
|
|
ClassDB::bind_method(D_METHOD("set_scene_unique_id", "id"), &Resource::set_scene_unique_id);
|
|
ClassDB::bind_method(D_METHOD("get_scene_unique_id"), &Resource::get_scene_unique_id);
|
|
|
|
ClassDB::bind_method(D_METHOD("emit_changed"), &Resource::emit_changed);
|
|
|
|
ClassDB::bind_method(D_METHOD("duplicate", "subresources"), &Resource::duplicate, DEFVAL(false));
|
|
ADD_SIGNAL(MethodInfo("changed"));
|
|
ADD_SIGNAL(MethodInfo("setup_local_to_scene_requested"));
|
|
|
|
ADD_GROUP("Resource", "resource_");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "resource_local_to_scene"), "set_local_to_scene", "is_local_to_scene");
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "resource_path", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "set_path", "get_path");
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "resource_name"), "set_name", "get_name");
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "resource_scene_unique_id", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_scene_unique_id", "get_scene_unique_id");
|
|
|
|
MethodInfo get_rid_bind("_get_rid");
|
|
get_rid_bind.return_val.type = Variant::RID;
|
|
|
|
::ClassDB::add_virtual_method(get_class_static(), get_rid_bind, true, Vector<String>(), true);
|
|
GDVIRTUAL_BIND(_setup_local_to_scene);
|
|
}
|
|
|
|
Resource::Resource() :
|
|
remapped_list(this) {}
|
|
|
|
Resource::~Resource() {
|
|
if (unlikely(path_cache.is_empty())) {
|
|
return;
|
|
}
|
|
|
|
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;
|
|
}
|