157 lines
4.4 KiB
C++
157 lines
4.4 KiB
C++
/* ResidualVM - A 3D game interpreter
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*
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* ResidualVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the AUTHORS
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "engines/stark/archiveloader.h"
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#include "engines/stark/xrcreader.h"
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#include "engines/stark/resources/level.h"
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#include "engines/stark/resources/location.h"
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namespace Stark {
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ArchiveLoader::LoadedArchive::LoadedArchive(const Common::String& archiveName) :
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_filename(archiveName) {
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if (!_xarc.open(archiveName)) {
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error("Unable to open archive '%s'", archiveName.c_str());
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}
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_root = importResources();
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}
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ArchiveLoader::LoadedArchive::~LoadedArchive() {
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// Resource lifecycle update
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_root->onPreDestroy();
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delete _root;
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}
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Resource *ArchiveLoader::LoadedArchive::importResources() {
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// Find the XRC file
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Common::ArchiveMemberList members;
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_xarc.listMatchingMembers(members, "*.xrc");
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if (members.size() == 0) {
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error("No resource tree in archive '%s'", _filename.c_str());
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}
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if (members.size() > 1) {
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error("Too many resource scripts in archive '%s'", _filename.c_str());
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}
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// Open the XRC file
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Common::SeekableReadStream *stream = _xarc.createReadStreamForMember(members.front()->getName());
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// Import the resource tree
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Resource *root = XRCReader::importTree(stream);
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delete stream;
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return root;
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}
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ArchiveLoader::~ArchiveLoader() {
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for (LoadedArchiveList::iterator it = _archives.begin(); it != _archives.end(); it++) {
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delete *it;
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}
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}
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bool ArchiveLoader::load(const Common::String &archiveName) {
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if (hasArchive(archiveName)) {
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// Already loaded
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return false;
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}
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LoadedArchive *archive = new LoadedArchive(archiveName);
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_archives.push_back(archive);
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return true;
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}
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void ArchiveLoader::unloadUnused() {
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for (LoadedArchiveList::iterator it = _archives.begin(); it != _archives.end(); it++) {
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if (!(*it)->isInUse()) {
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delete *it;
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_archives.erase(it);
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}
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}
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}
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Common::ReadStream *ArchiveLoader::getFile(const Common::String &fileName, const Common::String &archiveName) {
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LoadedArchive *archive = findArchive(archiveName);
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XARCArchive &xarc = archive->getXArc();
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return xarc.createReadStreamForMember(fileName);
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}
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template <>
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Resource *ArchiveLoader::useRoot<Resource>(const Common::String &archiveName) {
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LoadedArchive *archive = findArchive(archiveName);
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archive->incUsage();
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return archive->getRoot();
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}
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bool ArchiveLoader::returnRoot(const Common::String &archiveName) {
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LoadedArchive *archive = findArchive(archiveName);
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archive->decUsage();
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return !archive->isInUse();
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}
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bool ArchiveLoader::hasArchive(const Common::String &archiveName) {
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for (LoadedArchiveList::iterator it = _archives.begin(); it != _archives.end(); it++) {
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if ((*it)->getFilename() == archiveName) {
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return true;
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}
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}
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return false;
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}
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ArchiveLoader::LoadedArchive *ArchiveLoader::findArchive(const Common::String &archiveName) {
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for (LoadedArchiveList::iterator it = _archives.begin(); it != _archives.end(); it++) {
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if ((*it)->getFilename() == archiveName) {
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return *it;
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}
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}
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error("The archive with name '%s' is not loaded.", archiveName.c_str());
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}
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Common::String ArchiveLoader::buildArchiveName(Level *level, Location *location) {
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Common::String archive;
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if (!location) {
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switch (level->getSubType()) {
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case 1:
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archive = Common::String::format("%s/%s.xarc", level->getName().c_str(), level->getName().c_str());
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break;
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case 2:
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archive = Common::String::format("%02x/%02x.xarc", level->getIndex(), level->getIndex());
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break;
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default:
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error("Unknown level archive type %d", level->getSubType());
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}
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} else {
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archive = Common::String::format("%02x/%02x/%02x.xarc", level->getIndex(), location->getIndex(), location->getIndex());
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}
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return archive;
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}
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} // End of namespace Stark
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