/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, * 2018, 2019 * Jonathan Schleifer <js@heap.zone> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFStream.h" OF_ASSUME_NONNULL_BEGIN #define OF_LHA_DECOMPRESSING_STREAM_BUFFER_SIZE 4096 @interface OFLHADecompressingStream: OFStream { OFStream *_stream; uint8_t _distanceBits, _dictionaryBits; unsigned char _buffer[OF_LHA_DECOMPRESSING_STREAM_BUFFER_SIZE]; uint32_t _bytesConsumed; uint16_t _bufferIndex, _bufferLength; uint8_t _byte; uint8_t _bitIndex, _savedBitsLength; uint16_t _savedBits; unsigned char *_slidingWindow; uint32_t _slidingWindowIndex, _slidingWindowMask; int _state; uint16_t _symbolsLeft; struct of_huffman_tree *_Nullable _codeLenTree, *_Nullable _litLenTree; struct of_huffman_tree *_Nullable _distTree, *_Nullable _treeIter; uint16_t _codesCount, _codesReceived; bool _currentIsExtendedLength, _skip; uint8_t *_Nullable _codesLengths; uint16_t _length; uint32_t _distance; } @property (readonly, nonatomic) uint32_t bytesConsumed; - (instancetype)of_initWithStream: (OFStream *)stream distanceBits: (uint8_t)distanceBits dictionaryBits: (uint8_t)dictionaryBits; @end OF_ASSUME_NONNULL_END