/// <summary>
/// Reads the specified number of bytes without advancing the read pointer
/// </summary>
public byte[] PeekBytes(int numberOfBytes)
{
ReadOverflowException.Assert(_lengthBits - _readPosition >= (numberOfBytes * 8));
byte[] retval = new byte[numberOfBytes];
BitReaderWriter.ReadBytes(_data, numberOfBytes, _readPosition, retval, 0);
return(retval);
}
/// <summary>
/// Reads the specified number of bytes without advancing the read pointer
/// </summary>
public void PeekBytes(byte[] into, int offset, int numberOfBytes)
{
ReadOverflowException.Assert(_lengthBits - _readPosition >= (numberOfBytes * 8));
BitBufferException.Assert(offset + numberOfBytes <= into.Length);
BitReaderWriter.ReadBytes(_data, numberOfBytes, _readPosition, into, offset);
return;
}
/// <summary>
/// Reads the specified number of bits into a preallocated array
/// </summary>
/// <param name="into">The destination array</param>
/// <param name="offset">The offset where to start writing in the destination array</param>
/// <param name="numberOfBits">The number of bits to read</param>
public BitReader ReadBits(byte[] into, int offset, int numberOfBits)
{
ReadOverflowException.Assert(_lengthBits - _readPosition >= numberOfBits);
BitBufferException.Assert(offset + BitUtility.BytesToHoldBits(numberOfBits) <= into.Length);
int numberOfWholeBytes = numberOfBits / 8;
int extraBits = numberOfBits - (numberOfWholeBytes * 8);
BitReaderWriter.ReadBytes(_data, numberOfWholeBytes, _readPosition, into, offset);
_readPosition += (8 * numberOfWholeBytes);
if (extraBits > 0)
{
into[offset + numberOfWholeBytes] = ReadByte(extraBits);
}
return(this);
}