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https://github.com/libretro/scummvm.git
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81 lines
2.4 KiB
C++
81 lines
2.4 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 COPYRIGHT
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* file distributed with this source distribution.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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 "common/archive.h"
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#include "common/scummsys.h"
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#include "common/endian.h"
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#include "common/file.h"
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#include "common/hash-str.h"
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#include "common/hashmap.h"
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#include "common/str.h"
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#ifndef GRIM_STUFFIT_H
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#define GRIM_STUFFIT_H
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namespace Common {
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class BitStream;
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}
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namespace Grim {
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struct SIT14Data;
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class StuffItArchive : public Common::Archive {
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public:
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StuffItArchive();
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~StuffItArchive();
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bool open(const Common::String &filename);
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void close();
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bool isOpen() const { return _stream != 0; }
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// Common::Archive API implementation
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bool hasFile(const Common::String &name) const;
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int listMembers(Common::ArchiveMemberList &list) const;
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const Common::ArchiveMemberPtr getMember(const Common::String &name) const;
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Common::SeekableReadStream *createReadStreamForMember(const Common::String &name) const;
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private:
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struct FileEntry {
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byte compression;
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uint32 uncompressedSize;
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uint32 compressedSize;
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uint32 offset;
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};
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Common::SeekableReadStream *_stream;
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typedef Common::HashMap<Common::String, FileEntry, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> FileMap;
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FileMap _map;
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// Decompression Functions
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Common::SeekableReadStream *decompress14(Common::SeekableReadStream *src, uint32 uncompressedSize) const;
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// Decompression Helpers
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void update14(uint16 first, uint16 last, byte *code, uint16 *freq) const;
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void readTree14(Common::BitStream *bits, SIT14Data *dat, uint16 codesize, uint16 *result) const;
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};
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} // End of namespace Grim
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#endif
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