readUint32 method

int readUint32(
  1. int position, [
  2. int? fileSize
])

Read a 32-bit unsigned int at the given position within the file.

Implementation

int readUint32(int position, [int? fileSize]) {
  if (position >= (_fileSize - 4) || position < 0) {
    return 0;
  }
  if (position < _position || position >= (_position + (_bufferSize - 4))) {
    _readBuffer(position, fileSize ?? _fileSize);
  }
  var p = position - _position;
  final b1 = _buffer![p++];
  final b2 = _buffer![p++];
  final b3 = _buffer![p++];
  final b4 = _buffer![p++];
  if (byteOrder == ByteOrder.bigEndian) {
    return (b1 << 24) | (b2 << 16) | (b3 << 8) | b4;
  }
  return (b4 << 24) | (b3 << 16) | (b2 << 8) | b1;
}