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);
}
}
