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This commit is contained in:
Igor Pavlov
2005-05-30 00:00:00 +00:00
committed by Kornel Lesiński
parent 8c1b5c7b7e
commit 3c510ba80b
926 changed files with 40559 additions and 23519 deletions
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85
7zip/Compress/BZip2/BZip2Decoder.h
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@@ -1,39 +1,88 @@
// Compress/BZip2/Decoder.h
#pragma once
#ifndef __COMPRESS_BZIP2_DECODER_H
#define __COMPRESS_BZIP2_DECODER_H
#include "../../ICoder.h"
// #include "../../Interface/CompressInterface.h"
#include "Common/MyCom.h"
#include "../../../Common/MyCom.h"
#include "../../Common/MSBFDecoder.h"
#include "../../Common/InBuffer.h"
#include "../../Common/OutBuffer.h"
#include "../Huffman/HuffmanDecoder.h"
#include "BZip2Const.h"
namespace NCompress {
namespace NBZip2 {
typedef NCompress::NHuffman::CDecoder<kMaxHuffmanLen, kMaxAlphaSize> CHuffmanDecoder;
struct CState
{
UInt32 *tt;
bool BlockRandomised;
UInt32 OrigPtr;
UInt32 BlockSize;
UInt32 CharCounters[256];
Byte m_Selectors[kNumSelectorsMax];
UInt32 StoredCRC;
CState(): tt(0) {}
~CState();
bool Alloc();
HRESULT DecodeBlock(COutBuffer &m_OutStream);
};
class CDecoder :
public ICompressCoder,
public ICompressGetInStreamProcessedSize,
public CMyUnknownImp
{
BYTE *m_InBuffer;
BYTE *m_OutBuffer;
NStream::NMSBF::CDecoder<CInBuffer> m_InStream;
COutBuffer m_OutStream;
CHuffmanDecoder m_HuffmanDecoders[kNumTablesMax];
CState m_State;
UInt32 ReadBits(int numBits);
Byte ReadByte();
bool ReadBit();
UInt32 ReadCRC();
HRESULT ReadBlock(UInt32 blockSizeMax, CState &state);
HRESULT PrepareBlock(CState &state);
HRESULT DecodeFile(bool &isBZ, ICompressProgressInfo *progress);
HRESULT CodeReal(ISequentialInStream *inStream,
ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
ICompressProgressInfo *progress);
class CDecoderFlusher
{
CDecoder *_decoder;
public:
bool NeedFlush;
CDecoderFlusher(CDecoder *decoder): _decoder(decoder), NeedFlush(true) {}
~CDecoderFlusher()
{
if (NeedFlush)
_decoder->Flush();
_decoder->ReleaseStreams();
}
};
public:
CDecoder();
~CDecoder();
MY_UNKNOWN_IMP
HRESULT Flush();
// void (ReleaseStreams)();
STDMETHOD(CodeReal)(ISequentialInStream *inStream,
ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
ICompressProgressInfo *progress);
HRESULT Flush() { return m_OutStream.Flush(); }
void ReleaseStreams()
{
m_InStream.ReleaseStream();
m_OutStream.ReleaseStream();
}
MY_UNKNOWN_IMP1(ICompressGetInStreamProcessedSize)
STDMETHOD(Code)(ISequentialInStream *inStream,
ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
ISequentialOutStream *outStream, const UInt64 *inSize, const UInt64 *outSize,
ICompressProgressInfo *progress);
STDMETHOD(GetInStreamProcessedSize)(UInt64 *value);
};
}}