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/* ResidualVM - A 3D game interpreter
*
* ResidualVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the AUTHORS
* 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.
*
*/
#ifndef GRIM_STUFFIT_H
#define GRIM_STUFFIT_H
#include "common/archive.h"
#include "common/bitstream.h"
#include "common/scummsys.h"
#include "common/endian.h"
#include "common/file.h"
#include "common/hash-str.h"
#include "common/hashmap.h"
#include "common/str.h"
namespace Grim {
struct SIT14Data;
class StuffItArchive : public Common::Archive {
public:
StuffItArchive();
~StuffItArchive();
bool open(const Common::String &filename);
void close();
bool isOpen() const { return _stream != 0; }
// Common::Archive API implementation
bool hasFile(const Common::String &name) const override;
int listMembers(Common::ArchiveMemberList &list) const override;
const Common::ArchiveMemberPtr getMember(const Common::String &name) const override;
Common::SeekableReadStream *createReadStreamForMember(const Common::String &name) const override;
private:
struct FileEntry {
byte compression;
uint32 uncompressedSize;
uint32 compressedSize;
uint32 offset;
};
Common::SeekableReadStream *_stream;
typedef Common::HashMap<Common::String, FileEntry, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> FileMap;
FileMap _map;
// Decompression Functions
Common::SeekableReadStream *decompress14(Common::SeekableReadStream *src, uint32 uncompressedSize) const;
// Decompression Helpers
void update14(uint16 first, uint16 last, byte *code, uint16 *freq) const;
void readTree14(Common::BitStream8LSB *bits, SIT14Data *dat, uint16 codesize, uint16 *result) const;
};
} // End of namespace Grim
#endif
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