godot/core/resource.cpp
Rémi Verschelde 1426cd3b3a
One Copyright Update to rule them all
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".

Backported from #70885.
2023-01-10 15:26:54 +01:00

516 lines
14 KiB
C++

/**************************************************************************/
/* resource.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "resource.h"
#include "core/core_string_names.h"
#include "core/io/resource_loader.h"
#include "core/os/file_access.h"
#include "core/os/os.h"
#include "core/script_language.h"
#include "scene/main/node.h" //only so casting works
#include <stdio.h>
void Resource::emit_changed() {
emit_signal(CoreStringNames::get_singleton()->changed);
}
void Resource::_resource_path_changed() {
}
void Resource::set_path(const String &p_path, bool p_take_over) {
if (path_cache == p_path) {
return;
}
if (path_cache != "") {
ResourceCache::lock.write_lock();
ResourceCache::resources.erase(path_cache);
ResourceCache::lock.write_unlock();
}
path_cache = "";
ResourceCache::lock.read_lock();
bool has_path = ResourceCache::resources.has(p_path);
ResourceCache::lock.read_unlock();
if (has_path) {
if (p_take_over) {
ResourceCache::lock.write_lock();
Resource **res = ResourceCache::resources.getptr(p_path);
if (res) {
(*res)->set_name("");
}
ResourceCache::lock.write_unlock();
} else {
ResourceCache::lock.read_lock();
bool exists = ResourceCache::resources.has(p_path);
ResourceCache::lock.read_unlock();
ERR_FAIL_COND_MSG(exists, "Another resource is loaded from path '" + p_path + "' (possible cyclic resource inclusion).");
}
}
path_cache = p_path;
if (path_cache != "") {
ResourceCache::lock.write_lock();
ResourceCache::resources[path_cache] = this;
ResourceCache::lock.write_unlock();
}
_change_notify("resource_path");
_resource_path_changed();
}
String Resource::get_path() const {
return path_cache;
}
void Resource::set_subindex(int p_sub_index) {
subindex = p_sub_index;
}
int Resource::get_subindex() const {
return subindex;
}
void Resource::set_name(const String &p_name) {
name = p_name;
_change_notify("resource_name");
}
String Resource::get_name() const {
return name;
}
bool Resource::editor_can_reload_from_file() {
return true; //by default yes
}
void Resource::reload_from_file() {
String path = get_path();
if (!path.is_resource_file()) {
return;
}
Ref<Resource> s = ResourceLoader::load(ResourceLoader::path_remap(path), get_class(), true);
if (!s.is_valid()) {
return;
}
List<PropertyInfo> pi;
s->get_property_list(&pi);
for (List<PropertyInfo>::Element *E = pi.front(); E; E = E->next()) {
if (!(E->get().usage & PROPERTY_USAGE_STORAGE)) {
continue;
}
if (E->get().name == "resource_path") {
continue; //do not change path
}
set(E->get().name, s->get(E->get().name));
}
}
Ref<Resource> Resource::duplicate_for_local_scene(Node *p_for_scene, Map<Ref<Resource>, Ref<Resource>> &remap_cache) {
List<PropertyInfo> plist;
get_property_list(&plist);
Ref<Resource> r = Object::cast_to<Resource>(ClassDB::instance(get_class()));
ERR_FAIL_COND_V(r.is_null(), Ref<Resource>());
r->local_scene = p_for_scene;
for (List<PropertyInfo>::Element *E = plist.front(); E; E = E->next()) {
if (!(E->get().usage & PROPERTY_USAGE_STORAGE)) {
continue;
}
Variant p = get(E->get().name);
if (p.get_type() == Variant::OBJECT) {
RES sr = p;
if (sr.is_valid()) {
if (sr->is_local_to_scene()) {
if (remap_cache.has(sr)) {
p = remap_cache[sr];
} else {
RES dupe = sr->duplicate_for_local_scene(p_for_scene, remap_cache);
p = dupe;
remap_cache[sr] = dupe;
}
}
}
}
r->set(E->get().name, p);
}
return r;
}
void Resource::configure_for_local_scene(Node *p_for_scene, Map<Ref<Resource>, Ref<Resource>> &remap_cache) {
List<PropertyInfo> plist;
get_property_list(&plist);
local_scene = p_for_scene;
for (List<PropertyInfo>::Element *E = plist.front(); E; E = E->next()) {
if (!(E->get().usage & PROPERTY_USAGE_STORAGE)) {
continue;
}
Variant p = get(E->get().name);
if (p.get_type() == Variant::OBJECT) {
RES sr = p;
if (sr.is_valid()) {
if (sr->is_local_to_scene()) {
if (!remap_cache.has(sr)) {
sr->configure_for_local_scene(p_for_scene, remap_cache);
remap_cache[sr] = sr;
}
}
}
}
}
}
Ref<Resource> Resource::duplicate(bool p_subresources) const {
List<PropertyInfo> plist;
get_property_list(&plist);
Ref<Resource> r = (Resource *)ClassDB::instance(get_class());
ERR_FAIL_COND_V(r.is_null(), Ref<Resource>());
for (List<PropertyInfo>::Element *E = plist.front(); E; E = E->next()) {
if (!(E->get().usage & PROPERTY_USAGE_STORAGE)) {
continue;
}
Variant p = get(E->get().name);
if ((p.get_type() == Variant::DICTIONARY || p.get_type() == Variant::ARRAY)) {
r->set(E->get().name, p.duplicate(p_subresources));
} else if (p.get_type() == Variant::OBJECT && (p_subresources || (E->get().usage & PROPERTY_USAGE_DO_NOT_SHARE_ON_DUPLICATE))) {
RES sr = p;
if (sr.is_valid()) {
r->set(E->get().name, sr->duplicate(p_subresources));
}
} else {
r->set(E->get().name, p);
}
}
return r;
}
void Resource::_set_path(const String &p_path) {
set_path(p_path, false);
}
void Resource::_take_over_path(const String &p_path) {
set_path(p_path, true);
}
RID Resource::get_rid() const {
return RID();
}
void Resource::register_owner(Object *p_owner) {
owners.insert(p_owner->get_instance_id());
}
void Resource::unregister_owner(Object *p_owner) {
owners.erase(p_owner->get_instance_id());
}
void Resource::notify_change_to_owners() {
for (Set<ObjectID>::Element *E = owners.front(); E; E = E->next()) {
Object *obj = ObjectDB::get_instance(E->get());
ERR_CONTINUE_MSG(!obj, "Object was deleted, while still owning a resource."); //wtf
//TODO store string
obj->call("resource_changed", RES(this));
}
}
#ifdef TOOLS_ENABLED
uint32_t Resource::hash_edited_version() const {
uint32_t hash = hash_djb2_one_32(get_edited_version());
List<PropertyInfo> plist;
get_property_list(&plist);
for (List<PropertyInfo>::Element *E = plist.front(); E; E = E->next()) {
if (E->get().usage & PROPERTY_USAGE_STORAGE && E->get().type == Variant::OBJECT && E->get().hint == PROPERTY_HINT_RESOURCE_TYPE) {
RES res = get(E->get().name);
if (res.is_valid()) {
hash = hash_djb2_one_32(res->hash_edited_version(), hash);
}
}
}
return hash;
}
#endif
void Resource::set_local_to_scene(bool p_enable) {
local_to_scene = p_enable;
}
bool Resource::is_local_to_scene() const {
return local_to_scene;
}
Node *Resource::get_local_scene() const {
if (local_scene) {
return local_scene;
}
if (_get_local_scene_func) {
return _get_local_scene_func();
}
return nullptr;
}
void Resource::setup_local_to_scene() {
if (get_script_instance()) {
get_script_instance()->call("_setup_local_to_scene");
}
}
Node *(*Resource::_get_local_scene_func)() = nullptr;
void Resource::set_as_translation_remapped(bool p_remapped) {
if (remapped_list.in_list() == p_remapped) {
return;
}
ResourceCache::lock.write_lock();
if (p_remapped) {
ResourceLoader::remapped_list.add(&remapped_list);
} else {
ResourceLoader::remapped_list.remove(&remapped_list);
}
ResourceCache::lock.write_unlock();
}
bool Resource::is_translation_remapped() const {
return remapped_list.in_list();
}
#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, int p_id) {
if (p_id == -1) {
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();
}
}
int 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())) {
int 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 -1;
}
}
#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_method(D_METHOD("emit_changed"), &Resource::emit_changed);
ClassDB::bind_method(D_METHOD("duplicate", "subresources"), &Resource::duplicate, DEFVAL(false));
ADD_SIGNAL(MethodInfo("changed"));
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");
BIND_VMETHOD(MethodInfo("_setup_local_to_scene"));
}
Resource::Resource() :
remapped_list(this) {
#ifdef TOOLS_ENABLED
last_modified_time = 0;
import_last_modified_time = 0;
#endif
subindex = 0;
local_to_scene = false;
local_scene = nullptr;
}
Resource::~Resource() {
if (path_cache != "") {
ResourceCache::lock.write_lock();
ResourceCache::resources.erase(path_cache);
ResourceCache::lock.write_unlock();
}
if (owners.size()) {
WARN_PRINT("Resource is still owned.");
}
}
HashMap<String, Resource *> ResourceCache::resources;
#ifdef TOOLS_ENABLED
HashMap<String, HashMap<String, int>> ResourceCache::resource_path_cache;
#endif
RWLock ResourceCache::lock;
#ifdef TOOLS_ENABLED
RWLock ResourceCache::path_cache_lock;
#endif
void ResourceCache::clear() {
if (resources.size()) {
ERR_PRINT("Resources still in use at exit (run with --verbose for details).");
if (OS::get_singleton()->is_stdout_verbose()) {
const String *K = nullptr;
while ((K = resources.next(K))) {
Resource *r = resources[*K];
print_line(vformat("Resource still in use: %s (%s)", *K, r->get_class()));
}
}
}
resources.clear();
}
void ResourceCache::reload_externals() {
}
bool ResourceCache::has(const String &p_path) {
lock.read_lock();
bool b = resources.has(p_path);
lock.read_unlock();
return b;
}
Resource *ResourceCache::get(const String &p_path) {
lock.read_lock();
Resource **res = resources.getptr(p_path);
lock.read_unlock();
if (!res) {
return nullptr;
}
return *res;
}
void ResourceCache::get_cached_resources(List<Ref<Resource>> *p_resources) {
lock.read_lock();
const String *K = nullptr;
while ((K = resources.next(K))) {
Resource *r = resources[*K];
p_resources->push_back(Ref<Resource>(r));
}
lock.read_unlock();
}
int ResourceCache::get_cached_resource_count() {
lock.read_lock();
int rc = resources.size();
lock.read_unlock();
return rc;
}
void ResourceCache::dump(const char *p_file, bool p_short) {
#ifdef DEBUG_ENABLED
lock.read_lock();
Map<String, int> type_count;
FileAccess *f = nullptr;
if (p_file) {
f = FileAccess::open(String::utf8(p_file), FileAccess::WRITE);
ERR_FAIL_COND_MSG(!f, "Cannot create file at path '" + String::utf8(p_file) + "'.");
}
const String *K = nullptr;
while ((K = resources.next(K))) {
Resource *r = resources[*K];
if (!type_count.has(r->get_class())) {
type_count[r->get_class()] = 0;
}
type_count[r->get_class()]++;
if (!p_short) {
if (f) {
f->store_line(r->get_class() + ": " + r->get_path());
}
}
}
for (Map<String, int>::Element *E = type_count.front(); E; E = E->next()) {
if (f) {
f->store_line(E->key() + " count: " + itos(E->get()));
}
}
if (f) {
f->close();
memdelete(f);
}
lock.read_unlock();
#else
WARN_PRINT("ResourceCache::dump only with in debug builds.");
#endif
}