private static object ReadPrimitiveValue(Stream bytes, PiffDataFormats format, Type targetType)
{
switch (format)
{
case PiffDataFormats.Int8:
return((byte)bytes.ReadByte());
case PiffDataFormats.Int24:
return(GetInt24(bytes));
case PiffDataFormats.Int32:
return(GetInt32(bytes));
case PiffDataFormats.Int64:
return(GetInt64(bytes));
case PiffDataFormats.Box:
return(ReadBox(bytes, targetType));
default:
throw new ArgumentException($"Format '{format}' is not yet supported for reading.");
}
}
public PiffDataFormatAttribute(PiffDataFormats format)
{
Format = format;
}
/// <summary>
/// Write a single value with the given format.
/// </summary>
private static IEnumerable <byte> WritePrimitiveValue(object value, PiffDataFormats format)
{
var dataBytes = new List <byte>();
switch (format)
{
case PiffDataFormats.Int8:
dataBytes.Add((byte)value);
break;
case PiffDataFormats.Int16:
dataBytes.AddRange(ConvertInt16ToBigEndian((short)value));
break;
case PiffDataFormats.Int24:
dataBytes.AddRange(ConvertInt32ToBigEndian((int)value).Skip(1));
break;
case PiffDataFormats.Int32:
dataBytes.AddRange(ConvertInt32ToBigEndian((int)value));
break;
case PiffDataFormats.UInt32:
dataBytes.AddRange(ConvertUnsignedInt32ToBigEndian((uint)value));
break;
case PiffDataFormats.Int64:
dataBytes.AddRange(ConvertInt64ToBigEndian((long)value));
break;
case PiffDataFormats.DynamicInt:
dataBytes.AddRange(ConvertInt32ToDynamic((int)value));
break;
case PiffDataFormats.Int2Minus1:
dataBytes.Add((byte)(((byte)value - 1) | 0xFC));
break;
case PiffDataFormats.Int5:
dataBytes.Add((byte)((byte)value | 0xE0));
break;
case PiffDataFormats.Ascii:
dataBytes.AddRange(Encoding.ASCII.GetBytes((string)value));
break;
case PiffDataFormats.Utf8Zero:
dataBytes.AddRange(Encoding.UTF8.GetBytes((string)value));
dataBytes.Add(0);
break;
case PiffDataFormats.Ucs2:
dataBytes.AddRange(Encoding.Unicode.GetBytes((string)value));
break;
case PiffDataFormats.GuidBytes:
// Need reformatting
dataBytes.AddRange(((Guid)value).ToBigEndianArray());
break;
case PiffDataFormats.InlineObject:
// Write the object
dataBytes.AddRange(CollectPropertiesForWriting(value).SelectMany(p => WriteValue(p)));
break;
case PiffDataFormats.Box:
dataBytes.AddRange(WriteBoxObject(value));
break;
default:
throw new ArgumentException($"Unsupported format '{format}'.");
}
return(dataBytes);
}
