public override object ReadValue()
{
if (this.Context.ValueCountLeft == 0)
{
this.FireEvent(ValueState.ToNextTag);
return(null);
}
this.Context.ValueCountLeft--;
return(Helper.Read(this.Context.Reader.BaseStream, TiffDataTypeHelper.Typeof(this.Context.CurrentTag.type)));
}
public static Tiff.IfdEntry FromPtr(IntPtr ptr, IntPtr baseAddr)
{
TiffDirEntry _entry = (TiffDirEntry)Marshal.PtrToStructure(ptr, typeof(TiffDirEntry));
Tiff.IfdEntry _ifdEntry = new Tiff.IfdEntry {
Tag = _entry.tag,
DataType = _entry.type,
_data = Array.CreateInstance(TiffDataTypeHelper.Typeof(_entry.type), _entry.count <= int.MaxValue?_entry.count:0)
};
IntPtr _dataPtr = (IntPtr)(((_ifdEntry.DataSize = (int)(TiffDataTypeHelper.Sizeof(_entry.type) * _ifdEntry._data.Length)) > 4)?baseAddr.ToInt64() + _entry.offset:ptr.ToInt64() + 8);
_ifdEntry.DataOffset = (int)(_dataPtr.ToInt64() - baseAddr.ToInt64());
for (int i = 0, _size = TiffDataTypeHelper.Sizeof(_entry.type); i < _ifdEntry._data.Length; i++)
{
_ifdEntry._data.SetValue(Marshal.PtrToStructure((IntPtr)(_dataPtr.ToInt64() + _size * i), TiffDataTypeHelper.Typeof(_entry.type)), i);
}
return(_ifdEntry);
}
