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4.59 beta

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This commit is contained in:
Igor Pavlov
2008-08-13 00:00:00 +00:00
committed by Kornel Lesiński
parent 3901bf0ab8
commit 173c07e166
781 changed files with 22124 additions and 13650 deletions
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26
CPP/7zip/Compress/Implode/ImplodeDecoder.cpp
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@@ -19,8 +19,8 @@ public:
CException(ECauseType cause): m_Cause(cause) {}
};
static const int kNumDistanceLowDirectBitsForBigDict = 7;
static const int kNumDistanceLowDirectBitsForSmallDict = 6;
static const int kNumDistanceLowDirectBitsForBigDict = 7;
static const int kNumDistanceLowDirectBitsForSmallDict = 6;
static const int kNumBitsInByte = 8;
@@ -38,14 +38,14 @@ static const int kLiteralTableSize = (1 << kNumBitsInByte);
static const int kDistanceTableSize = 64;
static const int kLengthTableSize = 64;
static const UInt32 kHistorySize =
(1 << MyMax(kNumDistanceLowDirectBitsForBigDict,
kNumDistanceLowDirectBitsForSmallDict)) *
static const UInt32 kHistorySize =
(1 << MyMax(kNumDistanceLowDirectBitsForBigDict,
kNumDistanceLowDirectBitsForSmallDict)) *
kDistanceTableSize; // = 8 KB;
static const int kNumAdditionalLengthBits = 8;
static const UInt32 kMatchMinLenWhenLiteralsOn = 3;
static const UInt32 kMatchMinLenWhenLiteralsOn = 3;
static const UInt32 kMatchMinLenWhenLiteralsOff = 2;
static const UInt32 kMatchMinLenMax = MyMax(kMatchMinLenWhenLiteralsOn,
@@ -73,17 +73,17 @@ void CCoder::ReleaseStreams()
m_InBitStream.ReleaseStream();
}
bool CCoder::ReadLevelItems(NImplode::NHuffman::CDecoder &decoder,
bool CCoder::ReadLevelItems(NImplode::NHuffman::CDecoder &decoder,
Byte *levels, int numLevelItems)
{
int numCodedStructures = m_InBitStream.ReadBits(kNumBitsInByte) +
int numCodedStructures = m_InBitStream.ReadBits(kNumBitsInByte) +
kLevelStructuresNumberAdditionalValue;
int currentIndex = 0;
for(int i = 0; i < numCodedStructures; i++)
{
int level = m_InBitStream.ReadBits(kNumLevelStructureLevelBits) +
int level = m_InBitStream.ReadBits(kNumLevelStructureLevelBits) +
kLevelStructureLevelAdditionalValue;
int rep = m_InBitStream.ReadBits(kNumLevelStructureRepNumberBits) +
int rep = m_InBitStream.ReadBits(kNumLevelStructureRepNumberBits) +
kLevelStructureRepNumberAdditionalValue;
if (currentIndex + rep > numLevelItems)
throw CException(CException::kData);
@@ -208,12 +208,12 @@ STDMETHODIMP CCoder::SetDecoderProperties2(const Byte *data, UInt32 size)
return E_INVALIDARG;
Byte flag = data[0];
m_BigDictionaryOn = ((flag & 2) != 0);
m_NumDistanceLowDirectBits = m_BigDictionaryOn ?
m_NumDistanceLowDirectBits = m_BigDictionaryOn ?
kNumDistanceLowDirectBitsForBigDict:
kNumDistanceLowDirectBitsForSmallDict;
m_LiteralsOn = ((flag & 4) != 0);
m_MinMatchLength = m_LiteralsOn ?
kMatchMinLenWhenLiteralsOn :
m_MinMatchLength = m_LiteralsOn ?
kMatchMinLenWhenLiteralsOn :
kMatchMinLenWhenLiteralsOff;
return S_OK;
}