d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
545 lines
15 KiB
C++
545 lines
15 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/core_string_names.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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emit_signal(CoreStringNames::get_singleton()->changed);
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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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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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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::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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Ref<Resource> Resource::duplicate_for_local_scene(Node *p_for_scene, HashMap<Ref<Resource>, Ref<Resource>> &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);
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if (p.get_type() == Variant::OBJECT) {
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Ref<Resource> sr = p;
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if (sr.is_valid()) {
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if (sr->is_local_to_scene()) {
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if (remap_cache.has(sr)) {
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p = remap_cache[sr];
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} else {
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Ref<Resource> dupe = sr->duplicate_for_local_scene(p_for_scene, remap_cache);
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p = dupe;
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remap_cache[sr] = dupe;
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}
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}
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}
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}
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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::configure_for_local_scene(Node *p_for_scene, HashMap<Ref<Resource>, Ref<Resource>> &remap_cache) {
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List<PropertyInfo> plist;
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get_property_list(&plist);
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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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if (p.get_type() == Variant::OBJECT) {
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Ref<Resource> sr = p;
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if (sr.is_valid()) {
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if (sr->is_local_to_scene()) {
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if (!remap_cache.has(sr)) {
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sr->configure_for_local_scene(p_for_scene, remap_cache);
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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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}
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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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if ((p.get_type() == Variant::DICTIONARY || p.get_type() == Variant::ARRAY)) {
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r->set(E.name, p.duplicate(p_subresources));
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} else if (p.get_type() == Variant::OBJECT && (p_subresources || (E.usage & PROPERTY_USAGE_DO_NOT_SHARE_ON_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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}
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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;
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ret.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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void Resource::register_owner(Object *p_owner) {
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owners.insert(p_owner->get_instance_id());
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}
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void Resource::unregister_owner(Object *p_owner) {
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owners.erase(p_owner->get_instance_id());
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}
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void Resource::notify_change_to_owners() {
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for (const ObjectID &E : owners) {
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Object *obj = ObjectDB::get_instance(E);
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ERR_CONTINUE_MSG(!obj, "Object was deleted, while still owning a resource."); //wtf
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//TODO store string
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obj->call("resource_changed", Ref<Resource>(this));
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}
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}
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#ifdef TOOLS_ENABLED
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uint32_t Resource::hash_edited_version() 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(), 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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// Can't use GDVIRTUAL in Resource, so this will have to be done with a signal
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emit_signal(SNAME("setup_local_to_scene_requested"));
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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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bool Resource::is_translation_remapped() const {
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return remapped_list.in_list();
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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_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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MethodInfo get_rid_bind("_get_rid");
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get_rid_bind.return_val.type = Variant::RID;
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::ClassDB::add_virtual_method(get_class_static(), get_rid_bind, true, Vector<String>(), true);
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}
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Resource::Resource() :
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remapped_list(this) {}
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Resource::~Resource() {
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if (!path_cache.is_empty()) {
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ResourceCache::lock.lock();
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ResourceCache::resources.erase(path_cache);
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ResourceCache::lock.unlock();
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}
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if (owners.size()) {
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WARN_PRINT("Resource is still owned.");
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}
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}
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HashMap<String, Resource *> ResourceCache::resources;
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#ifdef TOOLS_ENABLED
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HashMap<String, HashMap<String, String>> ResourceCache::resource_path_cache;
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#endif
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Mutex ResourceCache::lock;
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#ifdef TOOLS_ENABLED
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RWLock ResourceCache::path_cache_lock;
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#endif
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void ResourceCache::clear() {
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if (resources.size()) {
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ERR_PRINT("Resources still in use at exit (run with --verbose for details).");
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if (OS::get_singleton()->is_stdout_verbose()) {
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for (const KeyValue<String, Resource *> &E : resources) {
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print_line(vformat("Resource still in use: %s (%s)", E.key, E.value->get_class()));
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}
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}
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}
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resources.clear();
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}
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void ResourceCache::reload_externals() {
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}
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bool ResourceCache::has(const String &p_path) {
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lock.lock();
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Resource **res = resources.getptr(p_path);
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if (res && (*res)->get_reference_count() == 0) {
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// This resource is in the process of being deleted, ignore its existence.
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(*res)->path_cache = String();
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resources.erase(p_path);
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|
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();
|
|
for (KeyValue<String, Resource *> &E : resources) {
|
|
p_resources->push_back(Ref<Resource>(E.value));
|
|
}
|
|
lock.unlock();
|
|
}
|
|
|
|
int ResourceCache::get_cached_resource_count() {
|
|
lock.lock();
|
|
int rc = resources.size();
|
|
lock.unlock();
|
|
|
|
return rc;
|
|
}
|