private void EnsureBufferIsSufficient(int sourceCount)
{
var maxLength = encoder.GetMaxEncodedLength(sourceCount);
if (encodedBuffer != null && encodedBuffer.Length >= maxLength)
{
return;
}
var newLength = encodedBuffer == null ? 1024 : encodedBuffer.Length * 2;
while (newLength < maxLength)
{
newLength *= 2;
}
encodedBuffer = new byte[newLength];
}