scummvm/engines/dreamweb/rnca_archive.h
2023-12-24 13:19:25 +01:00

67 lines
2.3 KiB
C++

/* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef DREAMWEB_RNCA_ARCHIVE_H
#define DREAMWEB_RNCA_ARCHIVE_H
#include "common/archive.h"
#include "common/ptr.h"
#include "common/stream.h"
#include "common/hashmap.h"
#include "common/hash-str.h"
namespace DreamWeb {
class RNCAArchive : public Common::MemcachingCaseInsensitiveArchive {
public:
bool hasFile(const Common::Path &path) const override;
int listMembers(Common::ArchiveMemberList&) const override;
const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
Common::SharedArchiveContents readContentsForPath(const Common::Path &translated) const override;
static RNCAArchive* open(Common::SeekableReadStream *stream, DisposeAfterUse::Flag dispose = DisposeAfterUse::NO);
private:
class RNCAFileDescriptor {
private:
Common::String _fileName;
// Offset of the file contents relative to the beginning of RNCA stream
uint32 _fileDataOffset;
RNCAFileDescriptor(const Common::String& filename, uint32 off) : _fileName(filename), _fileDataOffset(off) {}
friend class RNCAArchive;
public:
// It's public for hashmap
RNCAFileDescriptor() : _fileDataOffset(0) {}
};
typedef Common::HashMap<Common::Path, RNCAFileDescriptor, Common::Path::IgnoreCase_Hash, Common::Path::IgnoreCase_EqualTo> FileMap;
RNCAArchive(FileMap files, Common::SeekableReadStream *stream, DisposeAfterUse::Flag dispose)
: _files(files), _stream(stream, dispose) {
}
FileMap _files;
Common::DisposablePtr<Common::SeekableReadStream> _stream;
};
}
#endif