public static string ReadUnicodeString(hid_t groupId, string name)
{
hid_t datatype = H5T.create(H5T.class_t.STRING, H5T.VARIABLE);
H5T.set_cset(datatype, H5T.cset_t.UTF8);
H5T.set_strpad(datatype, H5T.str_t.NULLTERM);
var datasetId = H5D.open(groupId, name);
var typeId = H5D.get_type(datasetId);
var classId = H5T.get_class(typeId);
var order = H5T.get_order(typeId);
IntPtr size = H5T.get_size(typeId);
int strLen = (int)size;
var spaceId = H5D.get_space(datasetId);
hid_t count = H5S.get_simple_extent_npoints(spaceId);
IntPtr[] rdata = new IntPtr[count];
byte[] wdata = new byte[strLen];
GCHandle hnd = GCHandle.Alloc(rdata, GCHandleType.Pinned);
H5D.read(datasetId, datatype, H5S.ALL, H5S.ALL,
H5P.DEFAULT, hnd.AddrOfPinnedObject());
for (int i = 0; i < strLen; i++)
{
Marshal.ReadByte(rdata[0], i);
}
Marshal.Copy(rdata[0], wdata, 0, strLen);
string s = Encoding.UTF8.GetString(wdata);
hnd.Free();
H5S.close(spaceId);
H5T.close(datatype);
H5D.close(datasetId);
return(s);
}
public static string ReadUnicodeString(hid_t groupId, string name)
{
hid_t datatype = H5T.create(H5T.class_t.STRING, H5T.VARIABLE);
H5T.set_cset(datatype, H5T.cset_t.UTF8);
H5T.set_strpad(datatype, H5T.str_t.SPACEPAD);
var datasetId = H5D.open(groupId, name);
var typeId = H5D.get_type(datasetId);
var classId = H5T.get_class(typeId);
var order = H5T.get_order(typeId);
IntPtr size = H5T.get_size(typeId);
int strLen = (int)size;
var spaceId = H5D.get_space(datasetId);
byte[] wdata = new byte[strLen];
//IntPtr ptr = new IntPtr();
GCHandle hnd = GCHandle.Alloc(wdata, GCHandleType.Pinned);
H5D.read(datasetId, datatype, H5S.ALL, H5S.ALL,
H5P.DEFAULT, hnd.AddrOfPinnedObject());
hnd.Free();
//int len = 0;
//while (Marshal.ReadByte(ptr, len) != 0) { ++len; }
//byte[] name_buf = new byte[len];
//Marshal.Copy(ptr, name_buf, 0, len);
string s = Encoding.UTF8.GetString(wdata);
H5S.close(spaceId);
H5T.close(datatype);
H5D.close(datasetId);
return(s);
}
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);
}