copyTo method

Object copyTo(Object dst)

Implementation

Object copyTo(Object dst) {
  int size = tfliteBinding.TfLiteTensorByteSize(_tensor);
  final ptr = calloc<Uint8>(size);
  checkState(isNotNull(ptr), message: 'unallocated');
  final externalTypedData = ptr.asTypedList(size);
  checkState(
      tfliteBinding.TfLiteTensorCopyToBuffer(_tensor, ptr.cast(), size) ==
          TfLiteStatus.kTfLiteOk);
  // Clone the data, because once `free(ptr)`, `externalTypedData` will be
  // volatile
  final bytes = externalTypedData.sublist(0);
  data = bytes;
  late Object obj;
  if (dst is Uint8List) {
    obj = bytes;
  } else if (dst is ByteBuffer) {
    ByteData bdata = dst.asByteData();
    for (int i = 0; i < bdata.lengthInBytes; i++) {
      bdata.setUint8(i, bytes[i]);
    }
    obj = bdata.buffer;
  } else {
    obj = _convertBytesToObject(bytes);
  }
  calloc.free(ptr);
  if (obj is List && dst is List) {
    _duplicateList(obj, dst);
  } else {
    dst = obj;
  }
  return obj;
}