godot/core/io/resource_import.cpp

348 lines
9.8 KiB
C++

/*************************************************************************/
/* resource_import.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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_import.h"
#include "os/os.h"
#include "variant_parser.h"
Error ResourceFormatImporter::_get_path_and_type(const String &p_path, PathAndType &r_path_and_type, bool *r_valid) const {
Error err;
FileAccess *f = FileAccess::open(p_path + ".import", FileAccess::READ, &err);
if (!f) {
if (r_valid) {
*r_valid = false;
}
return err;
}
VariantParser::StreamFile stream;
stream.f = f;
String assign;
Variant value;
VariantParser::Tag next_tag;
if (r_valid) {
*r_valid = true;
}
int lines = 0;
String error_text;
bool path_found = false; //first match must have priority
while (true) {
assign = Variant();
next_tag.fields.clear();
next_tag.name = String();
err = VariantParser::parse_tag_assign_eof(&stream, lines, error_text, next_tag, assign, value, NULL, true);
if (err == ERR_FILE_EOF) {
memdelete(f);
return OK;
} else if (err != OK) {
ERR_PRINTS("ResourceFormatImporter::load - " + p_path + ".import:" + itos(lines) + " error: " + error_text);
memdelete(f);
return err;
}
if (assign != String()) {
if (!path_found && assign.begins_with("path.") && r_path_and_type.path == String()) {
String feature = assign.get_slicec('.', 1);
if (OS::get_singleton()->check_feature_support(feature)) {
r_path_and_type.path = value;
path_found = true; //first match must have priority
}
} else if (!path_found && assign == "path") {
r_path_and_type.path = value;
path_found = true; //first match must have priority
} else if (assign == "type") {
r_path_and_type.type = value;
} else if (assign == "valid") {
if (r_valid) {
*r_valid = value;
}
}
} else if (next_tag.name != "remap") {
break;
}
}
memdelete(f);
if (r_path_and_type.path == String() || r_path_and_type.type == String()) {
return ERR_FILE_CORRUPT;
}
return OK;
}
RES ResourceFormatImporter::load(const String &p_path, const String &p_original_path, Error *r_error) {
PathAndType pat;
Error err = _get_path_and_type(p_path, pat);
if (err != OK) {
if (r_error)
*r_error = err;
return RES();
}
RES res = ResourceLoader::_load(pat.path, p_path, pat.type, false, r_error);
#ifdef TOOLS_ENABLED
if (res.is_valid()) {
res->set_import_last_modified_time(res->get_last_modified_time()); //pass this, if used
res->set_import_path(pat.path);
}
#endif
return res;
}
void ResourceFormatImporter::get_recognized_extensions(List<String> *p_extensions) const {
Set<String> found;
for (Set<Ref<ResourceImporter> >::Element *E = importers.front(); E; E = E->next()) {
List<String> local_exts;
E->get()->get_recognized_extensions(&local_exts);
for (List<String>::Element *F = local_exts.front(); F; F = F->next()) {
if (!found.has(F->get())) {
p_extensions->push_back(F->get());
found.insert(F->get());
}
}
}
}
void ResourceFormatImporter::get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const {
if (p_type == "") {
return get_recognized_extensions(p_extensions);
}
Set<String> found;
for (Set<Ref<ResourceImporter> >::Element *E = importers.front(); E; E = E->next()) {
String res_type = E->get()->get_resource_type();
if (res_type == String())
continue;
if (!ClassDB::is_parent_class(res_type, p_type))
continue;
List<String> local_exts;
E->get()->get_recognized_extensions(&local_exts);
for (List<String>::Element *F = local_exts.front(); F; F = F->next()) {
if (!found.has(F->get())) {
p_extensions->push_back(F->get());
found.insert(F->get());
}
}
}
}
bool ResourceFormatImporter::recognize_path(const String &p_path, const String &p_for_type) const {
return FileAccess::exists(p_path + ".import");
}
bool ResourceFormatImporter::can_be_imported(const String &p_path) const {
return ResourceFormatLoader::recognize_path(p_path);
}
bool ResourceFormatImporter::handles_type(const String &p_type) const {
for (Set<Ref<ResourceImporter> >::Element *E = importers.front(); E; E = E->next()) {
String res_type = E->get()->get_resource_type();
if (res_type == String())
continue;
if (ClassDB::is_parent_class(res_type, p_type))
return true;
}
return true;
}
String ResourceFormatImporter::get_internal_resource_path(const String &p_path) const {
PathAndType pat;
Error err = _get_path_and_type(p_path, pat);
if (err != OK) {
return String();
}
return pat.path;
}
void ResourceFormatImporter::get_internal_resource_path_list(const String &p_path, List<String> *r_paths) {
Error err;
FileAccess *f = FileAccess::open(p_path + ".import", FileAccess::READ, &err);
if (!f)
return;
VariantParser::StreamFile stream;
stream.f = f;
String assign;
Variant value;
VariantParser::Tag next_tag;
int lines = 0;
String error_text;
while (true) {
assign = Variant();
next_tag.fields.clear();
next_tag.name = String();
err = VariantParser::parse_tag_assign_eof(&stream, lines, error_text, next_tag, assign, value, NULL, true);
if (err == ERR_FILE_EOF) {
memdelete(f);
return;
} else if (err != OK) {
ERR_PRINTS("ResourceFormatImporter::get_internal_resource_path_list - " + p_path + ".import:" + itos(lines) + " error: " + error_text);
memdelete(f);
return;
}
if (assign != String()) {
if (assign.begins_with("path.")) {
r_paths->push_back(value);
} else if (assign == "path") {
r_paths->push_back(value);
}
} else if (next_tag.name != "remap") {
break;
}
}
memdelete(f);
}
bool ResourceFormatImporter::is_import_valid(const String &p_path) const {
bool valid = true;
PathAndType pat;
_get_path_and_type(p_path, pat, &valid);
return valid;
}
String ResourceFormatImporter::get_resource_type(const String &p_path) const {
PathAndType pat;
Error err = _get_path_and_type(p_path, pat);
if (err != OK) {
return "";
}
return pat.type;
}
void ResourceFormatImporter::get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types) {
PathAndType pat;
Error err = _get_path_and_type(p_path, pat);
if (err != OK) {
return;
}
return ResourceLoader::get_dependencies(pat.path, p_dependencies, p_add_types);
}
Ref<ResourceImporter> ResourceFormatImporter::get_importer_by_name(const String &p_name) {
for (Set<Ref<ResourceImporter> >::Element *E = importers.front(); E; E = E->next()) {
if (E->get()->get_importer_name() == p_name) {
return E->get();
}
}
return Ref<ResourceImporter>();
}
void ResourceFormatImporter::get_importers_for_extension(const String &p_extension, List<Ref<ResourceImporter> > *r_importers) {
for (Set<Ref<ResourceImporter> >::Element *E = importers.front(); E; E = E->next()) {
List<String> local_exts;
E->get()->get_recognized_extensions(&local_exts);
for (List<String>::Element *F = local_exts.front(); F; F = F->next()) {
if (p_extension.to_lower() == F->get()) {
r_importers->push_back(E->get());
}
}
}
}
Ref<ResourceImporter> ResourceFormatImporter::get_importer_by_extension(const String &p_extension) {
Ref<ResourceImporter> importer;
float priority = 0;
for (Set<Ref<ResourceImporter> >::Element *E = importers.front(); E; E = E->next()) {
List<String> local_exts;
E->get()->get_recognized_extensions(&local_exts);
for (List<String>::Element *F = local_exts.front(); F; F = F->next()) {
if (p_extension.to_lower() == F->get() && E->get()->get_priority() > priority) {
importer = E->get();
priority = E->get()->get_priority();
}
}
}
return importer;
}
String ResourceFormatImporter::get_import_base_path(const String &p_for_file) const {
return "res://.import/" + p_for_file.get_file() + "-" + p_for_file.md5_text();
}
ResourceFormatImporter *ResourceFormatImporter::singleton = NULL;
ResourceFormatImporter::ResourceFormatImporter() {
singleton = this;
}