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-rw-r--r--src/libs/7zip/unix/CPP/7zip/Compress/Rar1Decoder.cpp480
1 files changed, 0 insertions, 480 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Compress/Rar1Decoder.cpp b/src/libs/7zip/unix/CPP/7zip/Compress/Rar1Decoder.cpp
deleted file mode 100644
index eadca7b3d..000000000
--- a/src/libs/7zip/unix/CPP/7zip/Compress/Rar1Decoder.cpp
+++ /dev/null
@@ -1,480 +0,0 @@
-// Rar1Decoder.cpp
-// According to unRAR license, this code may not be used to develop
-// a program that creates RAR archives
-
-#include "StdAfx.h"
-
-#include "Rar1Decoder.h"
-
-namespace NCompress {
-namespace NRar1 {
-
-static UInt32 PosL1[]={0,0,0,2,3,5,7,11,16,20,24,32,32, 256};
-static UInt32 PosL2[]={0,0,0,0,5,7,9,13,18,22,26,34,36, 256};
-static UInt32 PosHf0[]={0,0,0,0,0,8,16,24,33,33,33,33,33, 257};
-static UInt32 PosHf1[]={0,0,0,0,0,0,4,44,60,76,80,80,127, 257};
-static UInt32 PosHf2[]={0,0,0,0,0,0,2,7,53,117,233, 257,0};
-static UInt32 PosHf3[]={0,0,0,0,0,0,0,2,16,218,251, 257,0};
-static UInt32 PosHf4[]={0,0,0,0,0,0,0,0,0,255, 257,0,0};
-
-static const UInt32 kHistorySize = (1 << 16);
-
-class CCoderReleaser
-{
- CDecoder *m_Coder;
-public:
- CCoderReleaser(CDecoder *coder): m_Coder(coder) {}
- ~CCoderReleaser() { m_Coder->ReleaseStreams(); }
-};
-
-CDecoder::CDecoder(): m_IsSolid(false) { }
-
-void CDecoder::InitStructures()
-{
- for(int i = 0; i < kNumRepDists; i++)
- m_RepDists[i] = 0;
- m_RepDistPtr = 0;
- LastLength = 0;
- LastDist = 0;
-}
-
-UInt32 CDecoder::ReadBits(int numBits) { return m_InBitStream.ReadBits(numBits); }
-
-HRESULT CDecoder::CopyBlock(UInt32 distance, UInt32 len)
-{
- if (len == 0)
- return S_FALSE;
- m_UnpackSize -= len;
- return m_OutWindowStream.CopyBlock(distance, len) ? S_OK : S_FALSE;
-}
-
-
-UInt32 CDecoder::DecodeNum(const UInt32 *posTab)
-{
- UInt32 startPos = 2;
- UInt32 num = m_InBitStream.GetValue(12);
- for (;;)
- {
- UInt32 cur = (posTab[startPos + 1] - posTab[startPos]) << (12 - startPos);
- if (num < cur)
- break;
- startPos++;
- num -= cur;
- }
- m_InBitStream.MovePos(startPos);
- return((num >> (12 - startPos)) + posTab[startPos]);
-}
-
-static Byte kShortLen1[] = {1,3,4,4,5,6,7,8,8,4,4,5,6,6 };
-static Byte kShortLen1a[] = {1,4,4,4,5,6,7,8,8,4,4,5,6,6,4 };
-static Byte kShortLen2[] = {2,3,3,3,4,4,5,6,6,4,4,5,6,6 };
-static Byte kShortLen2a[] = {2,3,3,4,4,4,5,6,6,4,4,5,6,6,4 };
-static UInt32 kShortXor1[] = {0,0xa0,0xd0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff,0xc0,0x80,0x90,0x98,0x9c,0xb0};
-static UInt32 kShortXor2[] = {0,0x40,0x60,0xa0,0xd0,0xe0,0xf0,0xf8,0xfc,0xc0,0x80,0x90,0x98,0x9c,0xb0};
-
-HRESULT CDecoder::ShortLZ()
-{
- UInt32 len, saveLen, dist;
- int distancePlace;
- Byte *kShortLen;
- const UInt32 *kShortXor;
- NumHuf = 0;
-
- if (LCount == 2)
- {
- if (ReadBits(1))
- return CopyBlock(LastDist, LastLength);
- LCount = 0;
- }
-
- UInt32 bitField = m_InBitStream.GetValue(8);
-
- if (AvrLn1 < 37)
- {
- kShortLen = Buf60 ? kShortLen1a : kShortLen1;
- kShortXor = kShortXor1;
- }
- else
- {
- kShortLen = Buf60 ? kShortLen2a : kShortLen2;
- kShortXor = kShortXor2;
- }
-
- for (len = 0; ((bitField ^ kShortXor[len]) & (~(0xff >> kShortLen[len]))) != 0; len++);
- m_InBitStream.MovePos(kShortLen[len]);
-
- if (len >= 9)
- {
- if (len == 9)
- {
- LCount++;
- return CopyBlock(LastDist, LastLength);
- }
- if (len == 14)
- {
- LCount = 0;
- len = DecodeNum(PosL2) + 5;
- dist = 0x8000 + ReadBits(15) - 1;
- LastLength = len;
- LastDist = dist;
- return CopyBlock(dist, len);
- }
-
- LCount = 0;
- saveLen = len;
- dist = m_RepDists[(m_RepDistPtr - (len - 9)) & 3];
- len = DecodeNum(PosL1) + 2;
- if (len == 0x101 && saveLen == 10)
- {
- Buf60 ^= 1;
- return S_OK;
- }
- if (dist >= 256)
- len++;
- if (dist >= MaxDist3 - 1)
- len++;
- }
- else
- {
- LCount = 0;
- AvrLn1 += len;
- AvrLn1 -= AvrLn1 >> 4;
-
- distancePlace = DecodeNum(PosHf2) & 0xff;
- dist = ChSetA[distancePlace];
- if (--distancePlace != -1)
- {
- PlaceA[dist]--;
- UInt32 lastDistance = ChSetA[distancePlace];
- PlaceA[lastDistance]++;
- ChSetA[distancePlace + 1] = lastDistance;
- ChSetA[distancePlace] = dist;
- }
- len += 2;
- }
- m_RepDists[m_RepDistPtr++] = dist;
- m_RepDistPtr &= 3;
- LastLength = len;
- LastDist = dist;
- return CopyBlock(dist, len);
-}
-
-
-HRESULT CDecoder::LongLZ()
-{
- UInt32 len;
- UInt32 dist;
- UInt32 distancePlace, newDistancePlace;
- UInt32 oldAvr2, oldAvr3;
-
- NumHuf = 0;
- Nlzb += 16;
- if (Nlzb > 0xff)
- {
- Nlzb = 0x90;
- Nhfb >>= 1;
- }
- oldAvr2=AvrLn2;
-
- if (AvrLn2 >= 122)
- len = DecodeNum(PosL2);
- else if (AvrLn2 >= 64)
- len = DecodeNum(PosL1);
- else
- {
- UInt32 bitField = m_InBitStream.GetValue(16);
- if (bitField < 0x100)
- {
- len = bitField;
- m_InBitStream.MovePos(16);
- }
- else
- {
- for (len = 0; ((bitField << len) & 0x8000) == 0; len++)
- ;
- m_InBitStream.MovePos(len + 1);
- }
- }
-
- AvrLn2 += len;
- AvrLn2 -= AvrLn2 >> 5;
-
- if (AvrPlcB > 0x28ff)
- distancePlace = DecodeNum(PosHf2);
- else if (AvrPlcB > 0x6ff)
- distancePlace = DecodeNum(PosHf1);
- else
- distancePlace = DecodeNum(PosHf0);
-
- AvrPlcB += distancePlace;
- AvrPlcB -= AvrPlcB >> 8;
- for (;;)
- {
- dist = ChSetB[distancePlace & 0xff];
- newDistancePlace = NToPlB[dist++ & 0xff]++;
- if (!(dist & 0xff))
- CorrHuff(ChSetB,NToPlB);
- else
- break;
- }
-
- ChSetB[distancePlace] = ChSetB[newDistancePlace];
- ChSetB[newDistancePlace] = dist;
-
- dist = ((dist & 0xff00) >> 1) | ReadBits(7);
-
- oldAvr3 = AvrLn3;
- if (len != 1 && len != 4)
- if (len == 0 && dist <= MaxDist3)
- {
- AvrLn3++;
- AvrLn3 -= AvrLn3 >> 8;
- }
- else
- if (AvrLn3 > 0)
- AvrLn3--;
- len += 3;
- if (dist >= MaxDist3)
- len++;
- if (dist <= 256)
- len += 8;
- if (oldAvr3 > 0xb0 || AvrPlc >= 0x2a00 && oldAvr2 < 0x40)
- MaxDist3 = 0x7f00;
- else
- MaxDist3 = 0x2001;
- m_RepDists[m_RepDistPtr++] = --dist;
- m_RepDistPtr &= 3;
- LastLength = len;
- LastDist = dist;
- return CopyBlock(dist, len);
-}
-
-
-HRESULT CDecoder::HuffDecode()
-{
- UInt32 curByte, newBytePlace;
- UInt32 len;
- UInt32 dist;
- int bytePlace;
-
- if (AvrPlc > 0x75ff) bytePlace = DecodeNum(PosHf4);
- else if (AvrPlc > 0x5dff) bytePlace = DecodeNum(PosHf3);
- else if (AvrPlc > 0x35ff) bytePlace = DecodeNum(PosHf2);
- else if (AvrPlc > 0x0dff) bytePlace = DecodeNum(PosHf1);
- else bytePlace = DecodeNum(PosHf0);
- if (StMode)
- {
- if (--bytePlace == -1)
- {
- if (ReadBits(1))
- {
- NumHuf = StMode = 0;
- return S_OK;
- }
- else
- {
- len = (ReadBits(1)) ? 4 : 3;
- dist = DecodeNum(PosHf2);
- dist = (dist << 5) | ReadBits(5);
- return CopyBlock(dist - 1, len);
- }
- }
- }
- else if (NumHuf++ >= 16 && FlagsCnt == 0)
- StMode = 1;
- bytePlace &= 0xff;
- AvrPlc += bytePlace;
- AvrPlc -= AvrPlc >> 8;
- Nhfb+=16;
- if (Nhfb > 0xff)
- {
- Nhfb=0x90;
- Nlzb >>= 1;
- }
-
- m_UnpackSize --;
- m_OutWindowStream.PutByte((Byte)(ChSet[bytePlace] >> 8));
-
- for (;;)
- {
- curByte = ChSet[bytePlace];
- newBytePlace = NToPl[curByte++ & 0xff]++;
- if ((curByte & 0xff) > 0xa1)
- CorrHuff(ChSet, NToPl);
- else
- break;
- }
-
- ChSet[bytePlace] = ChSet[newBytePlace];
- ChSet[newBytePlace] = curByte;
- return S_OK;
-}
-
-
-void CDecoder::GetFlagsBuf()
-{
- UInt32 flags, newFlagsPlace;
- UInt32 flagsPlace = DecodeNum(PosHf2);
-
- for (;;)
- {
- flags = ChSetC[flagsPlace];
- FlagBuf = flags >> 8;
- newFlagsPlace = NToPlC[flags++ & 0xff]++;
- if ((flags & 0xff) != 0)
- break;
- CorrHuff(ChSetC, NToPlC);
- }
-
- ChSetC[flagsPlace] = ChSetC[newFlagsPlace];
- ChSetC[newFlagsPlace] = flags;
-}
-
-void CDecoder::InitData()
-{
- if (!m_IsSolid)
- {
- AvrPlcB = AvrLn1 = AvrLn2 = AvrLn3 = NumHuf = Buf60 = 0;
- AvrPlc = 0x3500;
- MaxDist3 = 0x2001;
- Nhfb = Nlzb = 0x80;
- }
- FlagsCnt = 0;
- FlagBuf = 0;
- StMode = 0;
- LCount = 0;
-}
-
-void CDecoder::CorrHuff(UInt32 *CharSet,UInt32 *NumToPlace)
-{
- int i;
- for (i = 7; i >= 0; i--)
- for (int j = 0; j < 32; j++, CharSet++)
- *CharSet = (*CharSet & ~0xff) | i;
- memset(NumToPlace, 0, sizeof(NToPl));
- for (i = 6; i >= 0; i--)
- NumToPlace[i] = (7 - i) * 32;
-}
-
-void CDecoder::InitHuff()
-{
- for (UInt32 i = 0; i < 256; i++)
- {
- Place[i] = PlaceA[i] = PlaceB[i] = i;
- PlaceC[i] = (~i + 1) & 0xff;
- ChSet[i] = ChSetB[i] = i << 8;
- ChSetA[i] = i;
- ChSetC[i] = ((~i + 1) & 0xff) << 8;
- }
- memset(NToPl, 0, sizeof(NToPl));
- memset(NToPlB, 0, sizeof(NToPlB));
- memset(NToPlC, 0, sizeof(NToPlC));
- CorrHuff(ChSetB, NToPlB);
-}
-
-HRESULT CDecoder::CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
- const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo * /* progress */)
-{
- if (inSize == NULL || outSize == NULL)
- return E_INVALIDARG;
-
- if (!m_OutWindowStream.Create(kHistorySize))
- return E_OUTOFMEMORY;
- if (!m_InBitStream.Create(1 << 20))
- return E_OUTOFMEMORY;
-
- m_UnpackSize = (Int64)*outSize;
- m_OutWindowStream.SetStream(outStream);
- m_OutWindowStream.Init(m_IsSolid);
- m_InBitStream.SetStream(inStream);
- m_InBitStream.Init();
-
- CCoderReleaser coderReleaser(this);
- InitData();
- if (!m_IsSolid)
- {
- InitStructures();
- InitHuff();
- }
- if (m_UnpackSize > 0)
- {
- GetFlagsBuf();
- FlagsCnt = 8;
- }
-
- while (m_UnpackSize > 0)
- {
- if (StMode)
- {
- RINOK(HuffDecode());
- continue;
- }
-
- if (--FlagsCnt < 0)
- {
- GetFlagsBuf();
- FlagsCnt=7;
- }
-
- if (FlagBuf & 0x80)
- {
- FlagBuf <<= 1;
- if (Nlzb > Nhfb)
- {
- RINOK(LongLZ());
- }
- else
- {
- RINOK(HuffDecode());
- }
- }
- else
- {
- FlagBuf <<= 1;
- if (--FlagsCnt < 0)
- {
- GetFlagsBuf();
- FlagsCnt = 7;
- }
- if (FlagBuf & 0x80)
- {
- FlagBuf <<= 1;
- if (Nlzb > Nhfb)
- {
- RINOK(HuffDecode());
- }
- else
- {
- RINOK(LongLZ());
- }
- }
- else
- {
- FlagBuf <<= 1;
- RINOK(ShortLZ());
- }
- }
- }
- if (m_UnpackSize < 0)
- return S_FALSE;
- return m_OutWindowStream.Flush();
-}
-
-STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream *outStream,
- const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress)
-{
- try { return CodeReal(inStream, outStream, inSize, outSize, progress); }
- catch(const CInBufferException &e) { return e.ErrorCode; }
- catch(const CLzOutWindowException &e) { return e.ErrorCode; }
- catch(...) { return S_FALSE; }
-}
-
-STDMETHODIMP CDecoder::SetDecoderProperties2(const Byte *data, UInt32 size)
-{
- if (size < 1)
- return E_INVALIDARG;
- m_IsSolid = (data[0] != 0);
- return S_OK;
-}
-
-}}