Function _Convert

express/NeuralNetWorkOp.cpp:531–544

Convert a variable to another format(possibily added after `input`). Args: input: A variable. format: The target format. Returns: A variable. If `input` is already `format`, then return `input` directly, otherwize add a variable after `input` with `format`. */

A variable. If `input` is already `format`, then return `input` directly, otherwize add a variable after `input` with `format`.
*/
VARP _Convert(VARP input, Dimensionformat format) {
    if (nullptr != input->getInfo()) {
        auto source = input->getInfo()->order;
        if (source == format) {
            return input;
        }
    }
    std::unique_ptr<OpT> convert(new OpT);
    convert->type                               = OpType_ConvertTensor;
    convert->main.type                          = OpParameter_TensorConvertInfo;
    convert->main.value                         = new TensorConvertInfoT;
    convert->main.AsTensorConvertInfo()->dest   = (MNN_DATA_FORMAT)Utils::convertFormat(format);
    return (Variable::create(Expr::create(convert.get(), {input})));
}
/*Splits a variable value into a list of sub variables.
Args:
value: The variable to split.