public void BytesToStructArrayTest()
{
var Data = new byte[] {
0x01, 0x00, 0x02, 0x00, 0x03, 0x00,
0x01, 0x01, 0x02, 0x01, 0x03, 0x01,
0x01, 0x02, 0x02, 0x02, 0x03, 0x02,
};
var TestShorts = StructUtils.BytesToStructArray <TestShorts>(Data);
Assert.AreEqual("TestShorts(0x0001, 0x0002, 0x0003)", TestShorts[0].ToString());
Assert.AreEqual("TestShorts(0x0101, 0x0102, 0x0103)", TestShorts[1].ToString());
Assert.AreEqual("TestShorts(0x0201, 0x0202, 0x0203)", TestShorts[2].ToString());
}
/// <summary>
///
/// </summary>
/// <typeparam name="TType"></typeparam>
/// <param name="Stream"></param>
/// <param name="Count"></param>
/// <param name="EntrySize"></param>
/// <param name="AllowReadLess"></param>
/// <returns></returns>
public static TType[] ReadStructVector <TType>(this Stream Stream, uint Count, int EntrySize = -1, bool AllowReadLess = false) where TType : struct
{
if (Count == 0)
{
return(new TType[0]);
}
var ItemSize = Marshal.SizeOf(typeof(TType));
var SkipSize = (EntrySize == -1) ? (0) : (EntrySize - ItemSize);
var MaxCount = (uint)(Stream.Length / (ItemSize + SkipSize));
if (AllowReadLess)
{
Count = Math.Min(MaxCount, Count);
}
if (SkipSize < 0)
{
throw (new Exception("Invalid Size"));
}
else if (SkipSize == 0)
{
return(StructUtils.BytesToStructArray <TType>(Stream.ReadBytes((int)(ItemSize * Count))));
}
else
{
TType[] Vector = new TType[Count];
for (int n = 0; n < Count; n++)
{
Vector[n] = ReadStruct <TType>(Stream);
Stream.Skip(SkipSize);
}
return(Vector);
}
}
/// <summary>
///
/// </summary>
/// <typeparam name="TType"></typeparam>
/// <param name="stream"></param>
/// <param name="count"></param>
/// <param name="entrySize"></param>
/// <param name="allowReadLess"></param>
/// <returns></returns>
public static TType[] ReadStructVector <TType>(this Stream stream, uint count, int entrySize = -1,
bool allowReadLess = false) where TType : struct
{
if (count == 0)
{
return(new TType[0]);
}
var itemSize = Marshal.SizeOf(typeof(TType));
var skipSize = (entrySize == -1) ? (0) : (entrySize - itemSize);
var maxCount = (uint)(stream.Length / (itemSize + skipSize));
if (allowReadLess)
{
count = Math.Min(maxCount, count);
}
if (skipSize < 0)
{
throw (new Exception("Invalid Size"));
}
if (skipSize == 0)
{
return(StructUtils.BytesToStructArray <TType>(stream.ReadBytes((int)(itemSize * count))));
}
var vector = new TType[count];
for (var n = 0; n < count; n++)
{
vector[n] = ReadStruct <TType>(stream);
stream.Skip(skipSize);
}
return(vector);
}
