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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
// Based on the Xentax Wiki documentation:
// http://wiki.xentax.com/index.php/The_Last_Express_SND
#include "lastexpress/data/archive.h"
#include "lastexpress/debug.h"
#include "common/debug.h"
#include "common/file.h"
#include "common/substream.h"
namespace LastExpress {
HPFArchive::HPFArchive(const Common::String &path) {
_filename = path;
// Open a stream to the archive
Common::SeekableReadStream *archive = SearchMan.createReadStreamForMember(_filename);
if (!archive) {
debugC(2, kLastExpressDebugResource, "Error opening file: %s", path.c_str());
return;
}
debugC(2, kLastExpressDebugResource, "Opened archive: %s", path.c_str());
// Read header to get the number of files
uint32 numFiles = archive->readUint32LE();
debugC(3, kLastExpressDebugResource, "Number of files in archive: %d", numFiles);
// Read the list of files
for (unsigned int i = 0; i < numFiles; ++i) {
char name[13];
HPFEntry entry;
archive->read(&name, sizeof(char) * _archiveNameSize);
entry.offset = archive->readUint32LE();
entry.size = archive->readUint32LE();
entry.isOnHD = archive->readUint16LE();
// Terminate string
name[12] = '\0';
Common::String filename(name);
filename.toLowercase();
_files[filename] = entry;
//debugC(9, kLastExpressDebugResource, "File entry: %s (offset:%d - Size: %d - HD: %u)", &name, entry.offset, entry.size, entry.isOnHD);
}
// Close stream
delete archive;
}
bool HPFArchive::hasFile(const Common::String &name) {
return (_files.find(name) != _files.end());
}
int HPFArchive::listMembers(Common::ArchiveMemberList &list) {
int numMembers = 0;
for (FileMap::const_iterator i = _files.begin(); i != _files.end(); ++i) {
list.push_back(Common::ArchiveMemberList::value_type(new Common::GenericArchiveMember(i->_key, this)));
numMembers++;
}
return numMembers;
}
Common::ArchiveMemberPtr HPFArchive::getMember(const Common::String &name) {
if (!hasFile(name))
return Common::ArchiveMemberPtr();
return Common::ArchiveMemberPtr(new Common::GenericArchiveMember(name, this));
}
Common::SeekableReadStream *HPFArchive::createReadStreamForMember(const Common::String &name) const {
FileMap::const_iterator fDesc = _files.find(name);
if (fDesc == _files.end())
return NULL;
Common::File *archive = new Common::File();
if (!archive->open(_filename)) {
delete archive;
return NULL;
}
return new Common::SeekableSubReadStream(archive, fDesc->_value.offset * _archiveSectorSize, fDesc->_value.offset * _archiveSectorSize + fDesc->_value.size * _archiveSectorSize, DisposeAfterUse::YES);
}
} // End of namespace LastExpress
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