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-rw-r--r--engines/m4/compression.h77
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diff --git a/engines/m4/compression.h b/engines/m4/compression.h
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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.
- *
- */
-
-#ifndef M4_COMPRESSION_H
-#define M4_COMPRESSION_H
-
-#include "common/scummsys.h"
-#include "common/stream.h"
-#include "common/endian.h"
-
-#include "m4/m4.h"
-
-namespace M4 {
-
-struct MadsPackEntry {
-public:
- uint16 hash;
- uint32 size;
- uint32 compressedSize;
- byte *data;
-};
-
-class MadsPack {
-private:
- MadsPackEntry *_items;
- int _count;
- int _dataOffset;
-
- void initialize(Common::SeekableReadStream *stream);
-public:
- static bool isCompressed(Common::SeekableReadStream *stream);
- MadsPack(Common::SeekableReadStream *stream);
- MadsPack(const char *resourceName, MadsM4Engine *vm);
- ~MadsPack();
-
- int getCount() const { return _count; }
- MadsPackEntry &getItem(int index) const { return _items[index]; }
- MadsPackEntry &operator[](int index) const { return _items[index]; }
- Common::SeekableReadStream *getItemStream(int index);
- int getDataOffset() const { return _dataOffset; }
-};
-
-class FabDecompressor {
-private:
- int _bitsLeft;
- uint32 _bitBuffer;
- const byte *_srcData, *_srcP;
- int _srcSize;
-
- int getBit();
-public:
- void decompress(const byte *srcData, int srcSize, byte *destData, int destSize);
-};
-
-} // End of namespace M4
-
-
-#endif