diff options
Diffstat (limited to 'util/cbfstool/lzma/C/7zip/Compress/RangeCoder')
6 files changed, 0 insertions, 603 deletions
diff --git a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoder.h b/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoder.h deleted file mode 100644 index d77442be45..0000000000 --- a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoder.h +++ /dev/null @@ -1,205 +0,0 @@ -// Compress/RangeCoder/RangeCoder.h - -#ifndef __COMPRESS_RANGECODER_H -#define __COMPRESS_RANGECODER_H - -#include "../../Common/InBuffer.h" -#include "../../Common/OutBuffer.h" - -namespace NCompress { -namespace NRangeCoder { - -const int kNumTopBits = 24; -const UInt32 kTopValue = (1 << kNumTopBits); - -class CEncoder -{ - UInt32 _cacheSize; - Byte _cache; -public: - UInt64 Low; - UInt32 Range; - COutBuffer Stream; - bool Create(UInt32 bufferSize) { return Stream.Create(bufferSize); } - - void SetStream(ISequentialOutStream *stream) { Stream.SetStream(stream); } - void Init() - { - Stream.Init(); - Low = 0; - Range = 0xFFFFFFFF; - _cacheSize = 1; - _cache = 0; - } - - void FlushData() - { - // Low += 1; - for(int i = 0; i < 5; i++) - ShiftLow(); - } - - HRESULT FlushStream() { return Stream.Flush(); } - - void ReleaseStream() { Stream.ReleaseStream(); } - - void Encode(UInt32 start, UInt32 size, UInt32 total) - { - Low += start * (Range /= total); - Range *= size; - while (Range < kTopValue) - { - Range <<= 8; - ShiftLow(); - } - } - - void ShiftLow() - { - if ((UInt32)Low < (UInt32)0xFF000000 || (int)(Low >> 32) != 0) - { - Byte temp = _cache; - do - { - Stream.WriteByte((Byte)(temp + (Byte)(Low >> 32))); - temp = 0xFF; - } - while(--_cacheSize != 0); - _cache = (Byte)((UInt32)Low >> 24); - } - _cacheSize++; - Low = (UInt32)Low << 8; - } - - void EncodeDirectBits(UInt32 value, int numTotalBits) - { - for (int i = numTotalBits - 1; i >= 0; i--) - { - Range >>= 1; - if (((value >> i) & 1) == 1) - Low += Range; - if (Range < kTopValue) - { - Range <<= 8; - ShiftLow(); - } - } - } - - void EncodeBit(UInt32 size0, UInt32 numTotalBits, UInt32 symbol) - { - UInt32 newBound = (Range >> numTotalBits) * size0; - if (symbol == 0) - Range = newBound; - else - { - Low += newBound; - Range -= newBound; - } - while (Range < kTopValue) - { - Range <<= 8; - ShiftLow(); - } - } - - UInt64 GetProcessedSize() { return Stream.GetProcessedSize() + _cacheSize + 4; } -}; - -class CDecoder -{ -public: - CInBuffer Stream; - UInt32 Range; - UInt32 Code; - bool Create(UInt32 bufferSize) { return Stream.Create(bufferSize); } - - void Normalize() - { - while (Range < kTopValue) - { - Code = (Code << 8) | Stream.ReadByte(); - Range <<= 8; - } - } - - void SetStream(ISequentialInStream *stream) { Stream.SetStream(stream); } - void Init() - { - Stream.Init(); - Code = 0; - Range = 0xFFFFFFFF; - for(int i = 0; i < 5; i++) - Code = (Code << 8) | Stream.ReadByte(); - } - - void ReleaseStream() { Stream.ReleaseStream(); } - - UInt32 GetThreshold(UInt32 total) - { - return (Code) / ( Range /= total); - } - - void Decode(UInt32 start, UInt32 size) - { - Code -= start * Range; - Range *= size; - Normalize(); - } - - UInt32 DecodeDirectBits(int numTotalBits) - { - UInt32 range = Range; - UInt32 code = Code; - UInt32 result = 0; - for (int i = numTotalBits; i != 0; i--) - { - range >>= 1; - /* - result <<= 1; - if (code >= range) - { - code -= range; - result |= 1; - } - */ - UInt32 t = (code - range) >> 31; - code -= range & (t - 1); - result = (result << 1) | (1 - t); - - if (range < kTopValue) - { - code = (code << 8) | Stream.ReadByte(); - range <<= 8; - } - } - Range = range; - Code = code; - return result; - } - - UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits) - { - UInt32 newBound = (Range >> numTotalBits) * size0; - UInt32 symbol; - if (Code < newBound) - { - symbol = 0; - Range = newBound; - } - else - { - symbol = 1; - Code -= newBound; - Range -= newBound; - } - Normalize(); - return symbol; - } - - UInt64 GetProcessedSize() {return Stream.GetProcessedSize(); } -}; - -}} - -#endif diff --git a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBit.cpp b/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBit.cpp deleted file mode 100644 index 6c1c78e14e..0000000000 --- a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBit.cpp +++ /dev/null @@ -1,80 +0,0 @@ -// Compress/RangeCoder/RangeCoderBit.cpp - -#include "StdAfx.h" - -#include "RangeCoderBit.h" - -namespace NCompress { -namespace NRangeCoder { - -UInt32 CPriceTables::ProbPrices[kBitModelTotal >> kNumMoveReducingBits]; -static CPriceTables g_PriceTables; - -CPriceTables::CPriceTables() { Init(); } - -void CPriceTables::Init() -{ - const int kNumBits = (kNumBitModelTotalBits - kNumMoveReducingBits); - for(int i = kNumBits - 1; i >= 0; i--) - { - UInt32 start = 1 << (kNumBits - i - 1); - UInt32 end = 1 << (kNumBits - i); - for (UInt32 j = start; j < end; j++) - ProbPrices[j] = (i << kNumBitPriceShiftBits) + - (((end - j) << kNumBitPriceShiftBits) >> (kNumBits - i - 1)); - } - - /* - // simplest: bad solution - for(UInt32 i = 1; i < (kBitModelTotal >> kNumMoveReducingBits) - 1; i++) - ProbPrices[i] = kBitPrice; - */ - - /* - const double kDummyMultMid = (1.0 / kBitPrice) / 2; - const double kDummyMultMid = 0; - // float solution - double ln2 = log(double(2)); - double lnAll = log(double(kBitModelTotal >> kNumMoveReducingBits)); - for(UInt32 i = 1; i < (kBitModelTotal >> kNumMoveReducingBits) - 1; i++) - ProbPrices[i] = UInt32((fabs(lnAll - log(double(i))) / ln2 + kDummyMultMid) * kBitPrice); - */ - - /* - // experimental, slow, solution: - for(UInt32 i = 1; i < (kBitModelTotal >> kNumMoveReducingBits) - 1; i++) - { - const int kCyclesBits = 5; - const UInt32 kCycles = (1 << kCyclesBits); - - UInt32 range = UInt32(-1); - UInt32 bitCount = 0; - for (UInt32 j = 0; j < kCycles; j++) - { - range >>= (kNumBitModelTotalBits - kNumMoveReducingBits); - range *= i; - while(range < (1 << 31)) - { - range <<= 1; - bitCount++; - } - } - bitCount <<= kNumBitPriceShiftBits; - range -= (1 << 31); - for (int k = kNumBitPriceShiftBits - 1; k >= 0; k--) - { - range <<= 1; - if (range > (1 << 31)) - { - bitCount += (1 << k); - range -= (1 << 31); - } - } - ProbPrices[i] = (bitCount - // + (1 << (kCyclesBits - 1)) - ) >> kCyclesBits; - } - */ -} - -}} diff --git a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBit.h b/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBit.h deleted file mode 100644 index 624f887c94..0000000000 --- a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBit.h +++ /dev/null @@ -1,120 +0,0 @@ -// Compress/RangeCoder/RangeCoderBit.h - -#ifndef __COMPRESS_RANGECODER_BIT_H -#define __COMPRESS_RANGECODER_BIT_H - -#include "RangeCoder.h" - -namespace NCompress { -namespace NRangeCoder { - -const int kNumBitModelTotalBits = 11; -const UInt32 kBitModelTotal = (1 << kNumBitModelTotalBits); - -const int kNumMoveReducingBits = 2; - -const int kNumBitPriceShiftBits = 6; -const UInt32 kBitPrice = 1 << kNumBitPriceShiftBits; - -class CPriceTables -{ -public: - static UInt32 ProbPrices[kBitModelTotal >> kNumMoveReducingBits]; - static void Init(); - CPriceTables(); -}; - -template <int numMoveBits> -class CBitModel -{ -public: - UInt32 Prob; - void UpdateModel(UInt32 symbol) - { - /* - Prob -= (Prob + ((symbol - 1) & ((1 << numMoveBits) - 1))) >> numMoveBits; - Prob += (1 - symbol) << (kNumBitModelTotalBits - numMoveBits); - */ - if (symbol == 0) - Prob += (kBitModelTotal - Prob) >> numMoveBits; - else - Prob -= (Prob) >> numMoveBits; - } -public: - void Init() { Prob = kBitModelTotal / 2; } -}; - -template <int numMoveBits> -class CBitEncoder: public CBitModel<numMoveBits> -{ -public: - void Encode(CEncoder *encoder, UInt32 symbol) - { - /* - encoder->EncodeBit(this->Prob, kNumBitModelTotalBits, symbol); - this->UpdateModel(symbol); - */ - UInt32 newBound = (encoder->Range >> kNumBitModelTotalBits) * this->Prob; - if (symbol == 0) - { - encoder->Range = newBound; - this->Prob += (kBitModelTotal - this->Prob) >> numMoveBits; - } - else - { - encoder->Low += newBound; - encoder->Range -= newBound; - this->Prob -= (this->Prob) >> numMoveBits; - } - if (encoder->Range < kTopValue) - { - encoder->Range <<= 8; - encoder->ShiftLow(); - } - } - UInt32 GetPrice(UInt32 symbol) const - { - return CPriceTables::ProbPrices[ - (((this->Prob - symbol) ^ ((-(int)symbol))) & (kBitModelTotal - 1)) >> kNumMoveReducingBits]; - } - UInt32 GetPrice0() const { return CPriceTables::ProbPrices[this->Prob >> kNumMoveReducingBits]; } - UInt32 GetPrice1() const { return CPriceTables::ProbPrices[(kBitModelTotal - this->Prob) >> kNumMoveReducingBits]; } -}; - - -template <int numMoveBits> -class CBitDecoder: public CBitModel<numMoveBits> -{ -public: - UInt32 Decode(CDecoder *decoder) - { - UInt32 newBound = (decoder->Range >> kNumBitModelTotalBits) * this->Prob; - if (decoder->Code < newBound) - { - decoder->Range = newBound; - this->Prob += (kBitModelTotal - this->Prob) >> numMoveBits; - if (decoder->Range < kTopValue) - { - decoder->Code = (decoder->Code << 8) | decoder->Stream.ReadByte(); - decoder->Range <<= 8; - } - return 0; - } - else - { - decoder->Range -= newBound; - decoder->Code -= newBound; - this->Prob -= (this->Prob) >> numMoveBits; - if (decoder->Range < kTopValue) - { - decoder->Code = (decoder->Code << 8) | decoder->Stream.ReadByte(); - decoder->Range <<= 8; - } - return 1; - } - } -}; - -}} - -#endif diff --git a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBitTree.h b/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBitTree.h deleted file mode 100644 index 461e2f049f..0000000000 --- a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderBitTree.h +++ /dev/null @@ -1,161 +0,0 @@ -// Compress/RangeCoder/RangeCoderBitTree.h - -#ifndef __COMPRESS_RANGECODER_BIT_TREE_H -#define __COMPRESS_RANGECODER_BIT_TREE_H - -#include "RangeCoderBit.h" -#include "RangeCoderOpt.h" - -namespace NCompress { -namespace NRangeCoder { - -template <int numMoveBits, int NumBitLevels> -class CBitTreeEncoder -{ - CBitEncoder<numMoveBits> Models[1 << NumBitLevels]; -public: - void Init() - { - for(UInt32 i = 1; i < (1 << NumBitLevels); i++) - Models[i].Init(); - } - void Encode(CEncoder *rangeEncoder, UInt32 symbol) - { - UInt32 modelIndex = 1; - for (int bitIndex = NumBitLevels; bitIndex != 0 ;) - { - bitIndex--; - UInt32 bit = (symbol >> bitIndex) & 1; - Models[modelIndex].Encode(rangeEncoder, bit); - modelIndex = (modelIndex << 1) | bit; - } - }; - void ReverseEncode(CEncoder *rangeEncoder, UInt32 symbol) - { - UInt32 modelIndex = 1; - for (int i = 0; i < NumBitLevels; i++) - { - UInt32 bit = symbol & 1; - Models[modelIndex].Encode(rangeEncoder, bit); - modelIndex = (modelIndex << 1) | bit; - symbol >>= 1; - } - } - UInt32 GetPrice(UInt32 symbol) const - { - symbol |= (1 << NumBitLevels); - UInt32 price = 0; - while (symbol != 1) - { - price += Models[symbol >> 1].GetPrice(symbol & 1); - symbol >>= 1; - } - return price; - } - UInt32 ReverseGetPrice(UInt32 symbol) const - { - UInt32 price = 0; - UInt32 modelIndex = 1; - for (int i = NumBitLevels; i != 0; i--) - { - UInt32 bit = symbol & 1; - symbol >>= 1; - price += Models[modelIndex].GetPrice(bit); - modelIndex = (modelIndex << 1) | bit; - } - return price; - } -}; - -template <int numMoveBits, int NumBitLevels> -class CBitTreeDecoder -{ - CBitDecoder<numMoveBits> Models[1 << NumBitLevels]; -public: - void Init() - { - for(UInt32 i = 1; i < (1 << NumBitLevels); i++) - Models[i].Init(); - } - UInt32 Decode(CDecoder *rangeDecoder) - { - UInt32 modelIndex = 1; - RC_INIT_VAR - for(int bitIndex = NumBitLevels; bitIndex != 0; bitIndex--) - { - // modelIndex = (modelIndex << 1) + Models[modelIndex].Decode(rangeDecoder); - RC_GETBIT(numMoveBits, Models[modelIndex].Prob, modelIndex) - } - RC_FLUSH_VAR - return modelIndex - (1 << NumBitLevels); - }; - UInt32 ReverseDecode(CDecoder *rangeDecoder) - { - UInt32 modelIndex = 1; - UInt32 symbol = 0; - RC_INIT_VAR - for(int bitIndex = 0; bitIndex < NumBitLevels; bitIndex++) - { - // UInt32 bit = Models[modelIndex].Decode(rangeDecoder); - // modelIndex <<= 1; - // modelIndex += bit; - // symbol |= (bit << bitIndex); - RC_GETBIT2(numMoveBits, Models[modelIndex].Prob, modelIndex, ; , symbol |= (1 << bitIndex)) - } - RC_FLUSH_VAR - return symbol; - } -}; - -template <int numMoveBits> -void ReverseBitTreeEncode(CBitEncoder<numMoveBits> *Models, - CEncoder *rangeEncoder, int NumBitLevels, UInt32 symbol) -{ - UInt32 modelIndex = 1; - for (int i = 0; i < NumBitLevels; i++) - { - UInt32 bit = symbol & 1; - Models[modelIndex].Encode(rangeEncoder, bit); - modelIndex = (modelIndex << 1) | bit; - symbol >>= 1; - } -} - -template <int numMoveBits> -UInt32 ReverseBitTreeGetPrice(CBitEncoder<numMoveBits> *Models, - UInt32 NumBitLevels, UInt32 symbol) -{ - UInt32 price = 0; - UInt32 modelIndex = 1; - for (int i = NumBitLevels; i != 0; i--) - { - UInt32 bit = symbol & 1; - symbol >>= 1; - price += Models[modelIndex].GetPrice(bit); - modelIndex = (modelIndex << 1) | bit; - } - return price; -} - -template <int numMoveBits> -UInt32 ReverseBitTreeDecode(CBitDecoder<numMoveBits> *Models, - CDecoder *rangeDecoder, int NumBitLevels) -{ - UInt32 modelIndex = 1; - UInt32 symbol = 0; - RC_INIT_VAR - for(int bitIndex = 0; bitIndex < NumBitLevels; bitIndex++) - { - // UInt32 bit = Models[modelIndex].Decode(rangeDecoder); - // modelIndex <<= 1; - // modelIndex += bit; - // symbol |= (bit << bitIndex); - RC_GETBIT2(numMoveBits, Models[modelIndex].Prob, modelIndex, ; , symbol |= (1 << bitIndex)) - } - RC_FLUSH_VAR - return symbol; -} - -}} - -#endif diff --git a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h b/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h deleted file mode 100644 index 5779277635..0000000000 --- a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h +++ /dev/null @@ -1,31 +0,0 @@ -// Compress/RangeCoder/RangeCoderOpt.h - -#ifndef __COMPRESS_RANGECODER_OPT_H -#define __COMPRESS_RANGECODER_OPT_H - -#define RC_INIT_VAR \ - UInt32 range = rangeDecoder->Range; \ - UInt32 code = rangeDecoder->Code; - -#define RC_FLUSH_VAR \ - rangeDecoder->Range = range; \ - rangeDecoder->Code = code; - -#define RC_NORMALIZE \ - if (range < NCompress::NRangeCoder::kTopValue) \ - { code = (code << 8) | rangeDecoder->Stream.ReadByte(); range <<= 8; } - -#define RC_GETBIT2(numMoveBits, prob, mi, A0, A1) \ - { UInt32 bound = (range >> NCompress::NRangeCoder::kNumBitModelTotalBits) * prob; \ - if (code < bound) \ - { A0; range = bound; \ - prob += (NCompress::NRangeCoder::kBitModelTotal - prob) >> numMoveBits; \ - mi <<= 1; } \ - else \ - { A1; range -= bound; code -= bound; prob -= (prob) >> numMoveBits; \ - mi = (mi + mi) + 1; }} \ - RC_NORMALIZE - -#define RC_GETBIT(numMoveBits, prob, mi) RC_GETBIT2(numMoveBits, prob, mi, ; , ;) - -#endif diff --git a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/StdAfx.h b/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/StdAfx.h deleted file mode 100644 index b637fd4007..0000000000 --- a/util/cbfstool/lzma/C/7zip/Compress/RangeCoder/StdAfx.h +++ /dev/null @@ -1,6 +0,0 @@ -// StdAfx.h - -#ifndef __STDAFX_H -#define __STDAFX_H - -#endif |