unsafe public static Tuple <FrameHeader, ChannelCollection> LoadTestLabFrame(string path, FileReader reader, FileReadMode readMode) { TestLabFrameHeader frameHeader = new TestLabFrameHeader(); ChannelCollection channels = new ChannelCollection(); reader.Position = 8; frameHeader.Title = ReadASCIIString(reader, 61); frameHeader.Character = ReadASCIIString(reader, 121); frameHeader.Region = ReadASCIIString(reader, 121); try { frameHeader.Time = DateTime.Parse(ReadASCIIString(reader, 11) + " " + ReadASCIIString(reader, 9)); } catch { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } int numberOfChannels = reader.ReadUInt16(); reader.Position += 17; if (numberOfChannels == 0) { if (reader.FileSize != 350) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } } else { long fullSize = 350 + 192 * numberOfChannels; if (reader.FileSize < fullSize) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } for (int i = 0; i != numberOfChannels; ++i) { TestLabChannelHeader channelHeader = new TestLabChannelHeader(); channelHeader.Name = ReadASCIIString(reader, 13); channelHeader.Description = ReadASCIIString(reader, 121); channelHeader.Unit = ReadASCIIString(reader, 13); channelHeader.Offset = reader.ReadFloat32(); channelHeader.Scale = reader.ReadFloat32(); channelHeader.Cutoff = reader.ReadFloat32(); channelHeader.Sampling = reader.ReadUInt16(); channelHeader.Type = TestLabChannelHeader.Validation((TestLabChannelType)reader.ReadUInt8()); channelHeader.DataFormat = TestLabChannelHeader.Validation((TestLabDataFormat)reader.ReadUInt8()); uint channelLength = reader.ReadUInt32(); if (channelLength > int.MaxValue) { throw new InvalidOperationException("Файл содержит канал слишеом большой длины."); } Channel channel = new Channel(channelHeader, new Algebra.RealVector((int)channelLength)); channels.Add(channel); reader.Position += 25; fullSize += channelLength * TestLabChannelHeader.GetItemSize(channelHeader.DataFormat) + 2; } if ((readMode & FileReadMode.DisableCheckExceedingFileSize) == 0) { if (reader.FileSize != fullSize) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } } else { if (reader.FileSize < fullSize) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } } for (int i = 0; i != numberOfChannels; ++i) { Channel channel = channels[i]; TestLabChannelHeader header = (TestLabChannelHeader)channel.Header; int length = channel.Length; byte[] buffer = reader.ReadBytes(length * TestLabChannelHeader.GetItemSize(header.DataFormat)); double offset = header.Offset; double scale = header.Scale; double *destination = (double *)channel.Vector.Pointer; switch (header.DataFormat) { case TestLabDataFormat.UInt8: fixed(void *pointer = buffer) { byte *source = (byte *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; case TestLabDataFormat.UInt16: fixed(void *pointer = buffer) { ushort *source = (ushort *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; case TestLabDataFormat.UInt32: fixed(void *pointer = buffer) { uint *source = (uint *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; case TestLabDataFormat.Int8: fixed(void *pointer = buffer) { sbyte *source = (sbyte *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; case TestLabDataFormat.Int16: fixed(void *pointer = buffer) { short *source = (short *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; case TestLabDataFormat.Int32: fixed(void *pointer = buffer) { int *source = (int *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; case TestLabDataFormat.Float32: fixed(void *pointer = buffer) { float *source = (float *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; case TestLabDataFormat.Float64: fixed(void *pointer = buffer) { double *source = (double *)pointer; for (int j = 0; j != length; ++j) { destination[j] = scale * (source[j] - offset); } } break; default: throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } if (reader.ReadUInt16() != 65535) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } } } return(new Tuple <FrameHeader, ChannelCollection>(frameHeader, channels)); }
public static Tuple <FrameHeader, ChannelCollection> LoadCatmanFrame(string path, FileReader reader, FileReadMode readMode) { try { reader.Position = 2; CatmanFrameHeader frameHeader = new CatmanFrameHeader(); ChannelCollection channels = new ChannelCollection(); int dataOffset = reader.ReadInt32(); frameHeader.Comment = ReadASCIIString(reader, reader.ReadInt16()); for (int i = 0; i != 32; ++i) { frameHeader.Reserve[i] = ReadASCIIString(reader, reader.ReadInt16()); } int numberOfChannels = reader.ReadInt16(); int[] offsetChannelLength = new int[numberOfChannels]; frameHeader.MaximumChannelLength = reader.ReadInt32(); for (int i = 0; i != numberOfChannels; ++i) { offsetChannelLength[i] = reader.ReadInt32(); } // Проверка компресии данных. if (reader.ReadInt32() != 0) { throw new NotSupportedException("Произошла попытка чтения файла с компресией данных."); } if (numberOfChannels > 0) { for (int i = 0; i != numberOfChannels; ++i) { int channelLength = 0; reader.Position = offsetChannelLength[i] - 2; CatmanChannelHeader channelHeader = new CatmanChannelHeader(); channelHeader.LocationInDatabase = reader.ReadInt16(); channelLength = reader.ReadInt32(); channelHeader.Name = ReadASCIIString(reader, reader.ReadInt16()); channelHeader.Unit = ReadASCIIString(reader, reader.ReadInt16()); channelHeader.Comment = ReadASCIIString(reader, reader.ReadInt16()); channelHeader.DataFormat = (CatmanDataFormat)reader.ReadInt16(); channelHeader.DataWidth = reader.ReadInt16(); channelHeader.Time = DateTime.FromOADate(reader.ReadFloat64()); channelHeader.SizeOfExtendedHeader = reader.ReadInt32(); if (channelHeader.SizeOfExtendedHeader < 148) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } channelHeader.StartTime = DateTime.FromOADate(reader.ReadFloat64()); channelHeader.SamplingTimeStep = reader.ReadFloat64(); channelHeader.Sampling = 1000 / channelHeader.SamplingTimeStep; channelHeader.CodeOfSensorType = (CatmanCodeOfSensorType)reader.ReadInt16(); channelHeader.CodeOfSupplyVoltage = (CatmanCodeOfSupplyVoltage)reader.ReadInt16(); channelHeader.CodeOfFilterCharacteristics = (CatmanCodeOfFilterCharacteristics)reader.ReadInt16(); channelHeader.CodeOfFilterFrequency = (CatmanCodeOfFilterFrequency)reader.ReadInt16(); channelHeader.TareValue = reader.ReadFloat32(); channelHeader.ZeroValue = reader.ReadFloat32(); channelHeader.CodeOfMeasuringRange = (CatmanCodeOfMeasuringRange)reader.ReadFloat32(); channelHeader.InputCharacteristics = new double[4]; channelHeader.InputCharacteristics[0] = reader.ReadFloat32(); channelHeader.InputCharacteristics[1] = reader.ReadFloat32(); channelHeader.InputCharacteristics[2] = reader.ReadFloat32(); channelHeader.InputCharacteristics[3] = reader.ReadFloat32(); channelHeader.AmplifierSerialNumber = ReadASCIIString(reader, 32); channelHeader.PhysicalUnit = ReadASCIIString(reader, 8); channelHeader.NativeUnit = ReadASCIIString(reader, 8); channelHeader.HardwareSlotNumber = reader.ReadInt16(); channelHeader.HardwareSubSlotNumber = reader.ReadInt16(); channelHeader.CodeOfAmplifierType = reader.ReadInt16(); channelHeader.CodeOfAPConnectorType = reader.ReadInt16(); channelHeader.GageFactor = reader.ReadFloat32(); channelHeader.BridgeFactor = reader.ReadFloat32(); channelHeader.CodeOfMeasurementSignal = reader.ReadInt16(); channelHeader.CodeOfAmplifierInput = reader.ReadInt16(); channelHeader.CodeOfHighpassFilter = reader.ReadInt16(); channelHeader.OnlineImportInfo = reader.ReadUInt8(); channelHeader.CodeOfScaleType = reader.ReadUInt8(); channelHeader.SoftwareZeroValue = reader.ReadFloat32(); channelHeader.WriteProtected = reader.ReadUInt8(); channelHeader.Alignment = new byte[3]; channelHeader.Alignment[0] = reader.ReadUInt8(); channelHeader.Alignment[1] = reader.ReadUInt8(); channelHeader.Alignment[2] = reader.ReadUInt8(); channelHeader.NominalRange = reader.ReadFloat32(); channelHeader.CableLengthCompensation = reader.ReadFloat32(); channelHeader.ExportFormat = reader.ReadUInt8(); channelHeader.ChannelType = reader.ReadInt8(); channelHeader.EDaqConnectorOnLayer = reader.ReadUInt8(); channelHeader.EDaqLayer = reader.ReadUInt8(); channelHeader.ContentType = reader.ReadUInt8(); channelHeader.Reserved = new byte[3]; channelHeader.Reserved[0] = reader.ReadUInt8(); channelHeader.Reserved[1] = reader.ReadUInt8(); channelHeader.Reserved[2] = reader.ReadUInt8(); channelHeader.LinearisationMode = reader.ReadUInt8(); channelHeader.UserScaleType = reader.ReadUInt8(); channelHeader.NumberOfPointsScaleTable = reader.ReadUInt8(); if (channelHeader.NumberOfPointsScaleTable != 0) { channelHeader.PointsScaleTable = new double[channelHeader.NumberOfPointsScaleTable]; for (int j = 0; j != channelHeader.NumberOfPointsScaleTable; ++j) { channelHeader.PointsScaleTable[j] = reader.ReadFloat64(); } } channelHeader.ThermoType = reader.ReadInt16(); channelHeader.Formula = ReadASCIIString(reader, reader.ReadInt16()); channelHeader.SensorInfo = new CatmanSensorInfo(); int sensorInfoSize = reader.ReadInt32(); if (sensorInfoSize != 68) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } channelHeader.SensorInfo.InUse = reader.ReadInt16() != 0; channelHeader.SensorInfo.Description = ReadASCIIString(reader, 50); channelHeader.SensorInfo.Tid = ReadASCIIString(reader, 16); RealVector vector = new RealVector(channelLength); channels.Add(new Channel(channelHeader, vector)); } reader.Position = dataOffset; foreach (Channel channel in channels) { CatmanChannelHeader channelHeader = (CatmanChannelHeader)channel.Header; switch (channelHeader.ExportFormat) { case 0: for (int i = 0; i != channel.Length; ++i) { channel[i] = reader.ReadFloat64(); } break; case 1: for (int i = 0; i != channel.Length; ++i) { channel[i] = reader.ReadFloat32(); } break; case 2: channelHeader.MinValueFactor = reader.ReadFloat64(); channelHeader.MinValueFactor = reader.ReadFloat64(); for (int i = 0; i != channel.Length; ++i) { channel[i] = reader.ReadInt16() / 32767 * (channelHeader.MinValueFactor - channelHeader.MinValueFactor) + channelHeader.MinValueFactor; } break; default: throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } } // Проверка Id Post data ares if (reader.ReadInt16() != 4001) { throw new InvalidDataException("Произошла попытка загрузить файл некорректного формата."); } foreach (Channel channel in channels) { ((CatmanChannelHeader)channel.Header).FormatString = ReadASCIIString(reader, reader.ReadInt16()); } } return(new Tuple <FrameHeader, ChannelCollection>(frameHeader, channels)); } catch (Exception ex) { throw new InvalidDataException("Произошла ошибка при чтении файла.", ex); } }