Пример #1
0
        public override void Code(Stream inStream, Stream outStream, long inSize, long outSize, ICodingProgress progress = null)
        {
            if (_disposed)
            {
                throw new ObjectDisposedException(nameof(SynchronizedStreamConnector));
            }

            this.Reset();
            _externalProgress = progress;

            if (_coders.Length > 1)
            {
                this.CreateAllCodingThreads(inStream, outStream, inSize, outSize);

                foreach (var t in _threads)
                {
                    t.Thread.Start();
                }

                var allFinishedEvents = _threads.Select(t => t.Info.FinishedEvent.WaitHandle).ToArray();
                WaitHandle.WaitAll(allFinishedEvents);
            }
            else
            {
                _coders.First().Code(inStream, outStream, inSize, outSize, progress);
            }
        }
Пример #2
0
 private void Reset()
 {
     if (_disposed)
     {
         throw new ObjectDisposedException(nameof(SynchronizedStreamConnector));
     }
     _externalProgress = null;
     _processedInSize  = 0;
     _processedOutSize = 0;
     if (_connections != null)
     {
         foreach (var connector in _connections)
         {
             connector.Reset();
         }
     }
 }
Пример #3
0
        public override void Code(System.IO.Stream inStream, System.IO.Stream outStream,
                                  Int64 inSize, Int64 outSize, ICodingProgress progress)
        {
            if (outSize < 0)
            {
                throw new ArgumentOutOfRangeException(nameof(outSize), "outSize must be grater than 0. outSize is the uncompressed size of inStream.");
            }

            Init(inStream, outStream);

            LzmaBase.State state = new LzmaBase.State();
            state.Init();
            uint rep0 = 0, rep1 = 0, rep2 = 0, rep3 = 0;

            UInt64 nowPos64  = 0;
            UInt64 outSize64 = (UInt64)outSize;

            if (nowPos64 < outSize64)
            {
                if (m_IsMatchDecoders[state.Index << LzmaBase.kNumPosStatesBitsMax].Decode(m_RangeDecoder) != 0)
                {
                    throw new DataErrorException();
                }
                state.UpdateChar();
                byte b = m_LiteralDecoder.DecodeNormal(m_RangeDecoder, 0, 0);
                m_OutWindow.PutByte(b);
                nowPos64++;
            }
            while (nowPos64 < outSize64)
            {
                // UInt64 next = Math.Min(nowPos64 + (1 << 18), outSize64);
                // while(nowPos64 < next)
                {
                    uint posState = (uint)nowPos64 & m_PosStateMask;
                    if (m_IsMatchDecoders[(state.Index << LzmaBase.kNumPosStatesBitsMax) + posState].Decode(m_RangeDecoder) == 0)
                    {
                        byte b;
                        byte prevByte = m_OutWindow.GetByte(0);
                        if (!state.IsCharState())
                        {
                            b = m_LiteralDecoder.DecodeWithMatchByte(m_RangeDecoder,
                                                                     (uint)nowPos64, prevByte, m_OutWindow.GetByte(rep0));
                        }
                        else
                        {
                            b = m_LiteralDecoder.DecodeNormal(m_RangeDecoder, (uint)nowPos64, prevByte);
                        }
                        m_OutWindow.PutByte(b);
                        state.UpdateChar();
                        nowPos64++;
                    }
                    else
                    {
                        uint len;
                        if (m_IsRepDecoders[state.Index].Decode(m_RangeDecoder) == 1)
                        {
                            if (m_IsRepG0Decoders[state.Index].Decode(m_RangeDecoder) == 0)
                            {
                                if (m_IsRep0LongDecoders[(state.Index << LzmaBase.kNumPosStatesBitsMax) + posState].Decode(m_RangeDecoder) == 0)
                                {
                                    state.UpdateShortRep();
                                    m_OutWindow.PutByte(m_OutWindow.GetByte(rep0));
                                    nowPos64++;
                                    continue;
                                }
                            }
                            else
                            {
                                UInt32 distance;
                                if (m_IsRepG1Decoders[state.Index].Decode(m_RangeDecoder) == 0)
                                {
                                    distance = rep1;
                                }
                                else
                                {
                                    if (m_IsRepG2Decoders[state.Index].Decode(m_RangeDecoder) == 0)
                                    {
                                        distance = rep2;
                                    }
                                    else
                                    {
                                        distance = rep3;
                                        rep3     = rep2;
                                    }
                                    rep2 = rep1;
                                }
                                rep1 = rep0;
                                rep0 = distance;
                            }
                            len = m_RepLenDecoder.Decode(m_RangeDecoder, posState) + LzmaBase.kMatchMinLen;
                            state.UpdateRep();
                        }
                        else
                        {
                            rep3 = rep2;
                            rep2 = rep1;
                            rep1 = rep0;
                            len  = LzmaBase.kMatchMinLen + m_LenDecoder.Decode(m_RangeDecoder, posState);
                            state.UpdateMatch();
                            uint posSlot = m_PosSlotDecoder[LzmaBase.GetLenToPosState(len)].Decode(m_RangeDecoder);
                            if (posSlot >= LzmaBase.kStartPosModelIndex)
                            {
                                int numDirectBits = (int)((posSlot >> 1) - 1);
                                rep0 = ((2 | (posSlot & 1)) << numDirectBits);
                                if (posSlot < LzmaBase.kEndPosModelIndex)
                                {
                                    rep0 += RangeBitTreeDecoder.ReverseDecode(m_PosDecoders,
                                                                              rep0 - posSlot - 1, m_RangeDecoder, numDirectBits);
                                }
                                else
                                {
                                    rep0 += (m_RangeDecoder.DecodeDirectBits(
                                                 numDirectBits - LzmaBase.kNumAlignBits) << LzmaBase.kNumAlignBits);
                                    rep0 += m_PosAlignDecoder.ReverseDecode(m_RangeDecoder);
                                }
                            }
                            else
                            {
                                rep0 = posSlot;
                            }
                        }
                        if (rep0 >= m_OutWindow.TrainSize + nowPos64 || rep0 >= m_DictionarySizeCheck)
                        {
                            if (rep0 == 0xFFFFFFFF)
                            {
                                break;
                            }
                            throw new DataErrorException();
                        }
                        m_OutWindow.CopyBlock(rep0, len);
                        nowPos64 += len;
                    }
                }
            }
            m_OutWindow.Flush();
            m_OutWindow.ReleaseStream();
            m_RangeDecoder.ReleaseStream();
        }
Пример #4
0
        public override void Code(Stream inStream, Stream outStream, long inSize, long outSize, ICodingProgress progress = null)
        {
            var inBuf  = new byte[DefaultBlockSize];
            var outBuf = new byte[inBuf.Length];

            _bucket = new int[inBuf.Length];
            long processedSize = 0;

            for (; ;)
            {
                var nRead = inStream.Read(inBuf, 0, inBuf.Length);
                if (nRead == 0)
                {
                    break;
                }
                processedSize += nRead;
                var primaryIndex = this.EncodeBlock(inBuf, outBuf, nRead);
                outStream.Write(outBuf, 0, nRead);
                if (progress != null)
                {
                    progress.Report(new CodingProgressInfo(processedSize, processedSize));
                }
            }
        }
Пример #5
0
 public abstract void Code(Stream inStream, Stream outStream, long inSize, long outSize, ICodingProgress progress = null);
Пример #6
0
 public CodingThreadInfo(ICoder coder, Stream inStream, Stream outStream, long inSize, long outSize, ICodingProgress progress = null)
 {
     this.Coder         = coder;
     this.InStream      = inStream;
     this.OutStream     = outStream;
     this.Progress      = progress;
     this.InSize        = inSize;
     this.OutSize       = outSize;
     this.FinishedEvent = new ManualResetEventSlim(false);
 }
Пример #7
0
        public override void Code(Stream inStream, Stream outStream, long inSize = -1, long outSize = -1, ICodingProgress progress = null)
        {
            long processedSize = 0;

            for (; ;)
            {
                var nRead = inStream.Read(_buffer.Value, 0, _buffer.Value.Length);
                if (nRead == 0)
                {
                    break;
                }
                outStream.Write(_buffer.Value, 0, nRead);
                processedSize += nRead;
                if (progress != null)
                {
                    progress.Report(new CodingProgressInfo(processedSize, processedSize));
                }
            }
        }
Пример #8
0
 public static async Task CodeAsync(this ICoder self, Stream inStream, Stream outStream, long inSize, long outSize, ICodingProgress progress = null)
 {
     await Task.Factory.StartNew(() => self.Code(inStream, outStream, inSize, outSize, progress))
     .ConfigureAwait(false);
 }
Пример #9
0
 public override void Code(Stream inStream, Stream outStream, long inSize, long outSize, ICodingProgress progress = null)
 {
     throw new NotImplementedException();
 }