scummvm/engines/ngi/ngiarchive.h
2021-12-26 18:48:43 +01:00

70 lines
2.0 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 NGI_NGIARCHIVE_H
#define NGI_NGIARCHIVE_H
#include "common/ptr.h"
#include "common/str.h"
namespace NGI {
class Archive;
#define NGI_FILENAME_MAX 13
struct NgiHeader {
int32 pos;
int32 extVal;
int32 flags;
int32 size;
char filename[NGI_FILENAME_MAX];
};
typedef Common::HashMap<Common::String, Common::ScopedPtr<NgiHeader>, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> NgiHeadersMap;
class NGIArchive : public Common::Archive {
NgiHeadersMap _headers;
Common::String _ngiFilename;
public:
NGIArchive(const Common::String &name);
~NGIArchive() override;
// Archive implementation
bool hasFile(const Common::Path &path) const override;
int listMembers(Common::ArchiveMemberList &list) const override;
const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
};
/**
* This factory method creates an Archive instance corresponding to the content
* of the NGI compressed file with the given name.
*
* May return 0 in case of a failure.
*/
NGIArchive *makeNGIArchive(const Common::String &name);
} // End of namespace NGI
#endif