private object GetAttributeValue(int _h5FileId, string attributeName)
{
H5AttributeId attId = H5A.open(_h5FileId, attributeName);
if (attId == 0)
{
return(null);
}
H5DataTypeId typeId = 0;
H5DataTypeId dtId = 0;
H5A.info_t attInfo = new H5A.info_t();
H5DataSpaceId spaceId = 0;
H5DataTypeId oldTypeId = 0;
object retObject = null;
try
{
typeId = H5A.get_type(attId);
H5A.get_info(attId, ref attInfo);
dtId = H5A.get_type(attId);
spaceId = H5A.get_space(attId);
IntPtr dataSize = H5T.get_size(dtId);
//
oldTypeId = typeId;
typeId = H5T.get_native_type(typeId, H5T.direction_t.DEFAULT);
H5T.class_t typeClass = H5T.get_class(typeId);
int ndims = H5S.get_simple_extent_ndims(spaceId);
ulong[] dims = new ulong[ndims];
H5S.get_simple_extent_dims(spaceId, dims, null);
ulong dimSize = 1;
if (dims.Length == 0)
{
dimSize = 1;
}
else
{
foreach (ulong dim in dims)
{
dimSize *= dim;
}
}
switch (typeClass)
{
case H5T.class_t.NO_CLASS:
break;
case H5T.class_t.INTEGER:
// H5T.Sign.TWOS_COMPLEMENT;
H5T.sign_t sign = H5T.get_sign(oldTypeId);
switch (dataSize.ToInt32())
{
case 1:
retObject = ReadArray <byte>(dimSize, attId, typeId);
break;
case 2:
switch (sign)
{
case H5T.sign_t.SGN_2:
retObject = ReadArray <Int16>(dimSize, attId, typeId);
break;
case H5T.sign_t.NONE:
retObject = ReadArray <UInt16>(dimSize, attId, typeId);
break;
}
break;
case 4:
switch (sign)
{
case H5T.sign_t.SGN_2:
retObject = ReadArray <Int32>(dimSize, attId, typeId);
break;
case H5T.sign_t.NONE:
retObject = ReadArray <UInt32>(dimSize, attId, typeId);
break;
}
break;
case 8:
switch (sign)
{
case H5T.sign_t.SGN_2:
retObject = ReadArray <Int64>(dimSize, attId, typeId);
break;
case H5T.sign_t.NONE:
retObject = ReadArray <UInt64>(dimSize, attId, typeId);
break;
}
break;
}
break;
case H5T.class_t.FLOAT:
switch (dataSize.ToInt32())
{
case 4:
retObject = ReadArray <float>(dimSize, attId, typeId);
break;
case 8:
retObject = ReadArray <double>(dimSize, attId, typeId);
break;
}
break;
case H5T.class_t.STRING:
ulong size = attInfo.data_size;
byte[] chars = ReadArray <byte>(size, attId, typeId);
retObject = Encoding.ASCII.GetString(chars);
break;
default:
break;
}
return(retObject);
}
finally
{
if (spaceId != 0)
{
H5S.close(spaceId);
}
if (attId != 0)
{
H5A.close(attId);
}
if (oldTypeId != 0)
{
H5T.close(oldTypeId);
}
if (typeId != 0)
{
H5T.close(typeId);
}
if (dtId != 0)
{
H5T.close(dtId);
}
}
}
private string ReadBuffer(byte[] buffer, int offset, H5T.class_t typeClass, int typeId)
{
string result = string.Empty;
IntPtr dataSize = H5T.get_size(typeId);
H5T.order_t order = H5T.get_order(typeId);
byte[] temp = new byte[dataSize.ToInt32()];
Array.Copy(buffer, offset, temp, 0, dataSize.ToInt32());
if (order == H5T.order_t.BE && typeClass != H5T.class_t.STRING)
{
Array.Reverse(temp);
}
switch (typeClass)
{
case H5T.class_t.NO_CLASS:
break;
case H5T.class_t.INTEGER:
// H5T.Sign.TWOS_COMPLEMENT;
H5T.sign_t sign = H5T.get_sign(typeId);
switch (dataSize.ToInt32())
{
case 1:
result = ((double)BitConverter.ToChar(temp, 0)).ToString("G");
break;
case 2:
switch (sign)
{
case H5T.sign_t.SGN_2:
result = ((double)BitConverter.ToInt16(temp, 0)).ToString("G");
break;
case H5T.sign_t.NONE:
result = ((double)BitConverter.ToUInt16(temp, 0)).ToString("G");
break;
}
break;
case 4:
switch (sign)
{
case H5T.sign_t.SGN_2:
result = ((double)BitConverter.ToInt32(temp, 0)).ToString("G");
break;
case H5T.sign_t.NONE:
result = ((double)BitConverter.ToUInt32(temp, 0)).ToString("G");
break;
}
break;
case 8:
switch (sign)
{
case H5T.sign_t.SGN_2:
result = ((double)BitConverter.ToInt64(temp, 0)).ToString("G");
break;
case H5T.sign_t.NONE:
result = ((double)BitConverter.ToUInt64(temp, 0)).ToString("G");
break;
}
break;
}
break;
case H5T.class_t.FLOAT:
switch (dataSize.ToInt32())
{
case 4:
{
result = BitConverter.ToSingle(temp, 0).ToString("G");
break;
}
case 8:
{
result = BitConverter.ToDouble(temp, 0).ToString("G");
break;
}
}
break;
case H5T.class_t.STRING:
{
GCHandle handler = GCHandle.Alloc(temp, GCHandleType.Pinned);
var str = Marshal.PtrToStringAnsi(handler.AddrOfPinnedObject());
handler.Free();
result = str;
break;
}
default:
break;
}
return(result);
}
public static Hdf5DataType GetDataTypeByType(Hdf5Identifier _typeId)
{
var typeClass = H5T.get_class(_typeId.Value);
var typeSize = (int)H5T.get_size(_typeId.Value);
var typeSign = H5T.get_sign(_typeId.Value);
var typeOrder = H5T.get_order(_typeId.Value);
Hdf5DataType dt = new Hdf5DataType
{
Id = _typeId,
Size = typeSize,
};
if (typeOrder == H5T.order_t.BE)
{
dt.ByteOrder = Hdf5ByteOrder.BigEndian;
}
else if (typeOrder == H5T.order_t.LE)
{
dt.ByteOrder = Hdf5ByteOrder.LittleEndian;
}
else if (typeOrder == H5T.order_t.ONE)
{
dt.ByteOrder = Hdf5ByteOrder.None;
}
if (typeClass == H5T.class_t.INTEGER)
{
if (typeSign == H5T.sign_t.NONE)
{
if (typeSize == 1)
{
dt.Type = Hdf5DataTypes.UInt8;
dt.NativeType = H5T.NATIVE_UINT8.ToId();
}
else if (typeSize == 2)
{
dt.Type = Hdf5DataTypes.UInt16;
dt.NativeType = H5T.NATIVE_UINT16.ToId();
}
else if (typeSize == 4)
{
dt.Type = Hdf5DataTypes.UInt32;
dt.NativeType = H5T.NATIVE_UINT32.ToId();
}
else if (typeSize == 8)
{
dt.Type = Hdf5DataTypes.UInt64;
dt.NativeType = H5T.NATIVE_UINT64.ToId();
}
}
else
{
if (typeSize == 1)
{
dt.Type = Hdf5DataTypes.Int8;
dt.NativeType = H5T.NATIVE_INT8.ToId();
}
else if (typeSize == 2)
{
dt.Type = Hdf5DataTypes.Int16;
dt.NativeType = H5T.NATIVE_INT16.ToId();
}
else if (typeSize == 4)
{
dt.Type = Hdf5DataTypes.Int32;
dt.NativeType = H5T.NATIVE_INT32.ToId();
}
else if (typeSize == 8)
{
dt.Type = Hdf5DataTypes.Int64;
dt.NativeType = H5T.NATIVE_INT64.ToId();
}
}
}
else if (typeClass == H5T.class_t.FLOAT)
{
if (typeSize == 4)
{
dt.Type = Hdf5DataTypes.Single;
dt.NativeType = H5T.NATIVE_FLOAT.ToId();
}
else if (typeSize == 8)
{
dt.Type = Hdf5DataTypes.Double;
dt.NativeType = H5T.NATIVE_DOUBLE.ToId();
}
}
else if (typeClass == H5T.class_t.STRING)
{
dt.Type = Hdf5DataTypes.String;
dt.NativeType = H5T.C_S1.ToId();
}
return(dt);
}
