Method resize_cv_exec

dnn/src/naive/resize/resize_cv.cpp:1345–1420

}  // anonymous namespace

void megdnn::naive::resize_cv_exec(
        _megdnn_tensor_in src, _megdnn_tensor_out dst,
        param::Resize::InterpolationMode imode) {
#if !MGE_BUILD_WITHOUT_NAIVE_EXEC
    megdnn_assert(src.layout[3] == 1 || src.layout[3] == 3, "unsupported src channel");
    for (size_t i = 0; i < src.layout.shape[0]; ++i) {
        if (dst.layout.dtype == dtype::Float32()) {
            MIDOUT_BEGIN(megdnn_naive_resizecv_dtype, midout_iv(0)) {
                Mat<float> src_mat = TensorND2Mat<float>(src, i);
                Mat<float> dst_mat = TensorND2Mat<float>(dst, i);
                switch (imode) {
                    case IMode::INTER_NEAREST:
                        MIDOUT_BEGIN(megdnn_naive_resizecv_imode, midout_iv(0)) {
                            resize_nearest_32f(src_mat, dst_mat);
                        }
                        MIDOUT_END();
                        break;
                    case IMode::INTER_LINEAR:
                        MIDOUT_BEGIN(megdnn_naive_resizecv_imode, midout_iv(1)) {
                            resize_linear_32f(src_mat, dst_mat);
                        }
                        MIDOUT_END();
                        break;
                    case IMode::INTER_CUBIC:
                    case IMode::INTER_LANCZOS4:
                    case IMode::INTER_AREA:
                        MIDOUT_BEGIN(megdnn_naive_resizecv_imode, midout_iv(2)) {
                            resize_opencv<float>(src_mat, dst_mat, imode);
                        }
                        MIDOUT_END();
                        break;
                    default:
                        megdnn_throw("unsupported interpolation mode");
                        break;
                }
            }
            MIDOUT_END();
        } else if (dst.layout.dtype == dtype::Uint8()) {
            MIDOUT_BEGIN(megdnn_naive_resizecv_dtype, midout_iv(1)) {
                Mat<uchar> src_mat = TensorND2Mat<uchar>(src, i);
                Mat<uchar> dst_mat = TensorND2Mat<uchar>(dst, i);
                switch (imode) {
                    case IMode::INTER_NEAREST:
                        MIDOUT_BEGIN(megdnn_naive_resizecv_imode, midout_iv(0)) {
                            resize_nearest_8u(src_mat, dst_mat);
                        }
                        MIDOUT_END();
                        break;
                    case IMode::INTER_LINEAR:
                        MIDOUT_BEGIN(megdnn_naive_resizecv_imode, midout_iv(1)) {
                            resize_linear_8u(src_mat, dst_mat);
                        }
                        MIDOUT_END();
                        break;
                    case IMode::INTER_CUBIC:
                    case IMode::INTER_LANCZOS4:
                    case IMode::INTER_AREA:
                        MIDOUT_BEGIN(megdnn_naive_resizecv_imode, midout_iv(2)) {