Method Compute

tensorflow/core/kernels/maxpooling_op.cc:869–908

  }

  void Compute(OpKernelContext* context) override {
    const Tensor& tensor_in = context->input(0);

    std::vector<int32> ksize = ksize_;
    std::vector<int32> stride = stride_;

    if (context->num_inputs() != 1) {
      const Tensor& tensor_ksize = context->input(1);
      auto value_ksize = tensor_ksize.flat<int32>();
      ksize.resize(tensor_ksize.shape().num_elements());
      std::copy_n(&value_ksize(0), ksize.size(), ksize.begin());

      const Tensor& tensor_stride = context->input(2);
      auto value_stride = tensor_stride.flat<int32>();
      stride.resize(tensor_stride.shape().num_elements());
      std::copy_n(&value_stride(0), stride.size(), stride.begin());
    }
    OP_REQUIRES(context, ksize.size() == 4,
                errors::InvalidArgument("Sliding window ksize field must "
                                        "specify 4 dimensions"));
    OP_REQUIRES(context, stride.size() == 4,
                errors::InvalidArgument("Sliding window stride field must "
                                        "specify 4 dimensions"));
    OP_REQUIRES(context, ksize[0] == 1 && stride[0] == 1,
                errors::Unimplemented(
                    "Pooling is not yet supported on the batch dimension."));
    PoolParameters params{context,  ksize,        stride,
                          padding_, data_format_, tensor_in.shape()};
    if (!context->status().ok()) {
      return;
    }

    TensorShape out_shape({params.tensor_in_batch, params.out_height,
                           params.out_width, params.depth});
    Tensor* output = nullptr;
    OP_REQUIRES_OK(context, context->allocate_output(0, out_shape, &output));

    LaunchMaxPoolingNoMask<Device, T>::launch(context, params, tensor_in,
                                              output);
  }

 private:
  std::vector<int32> ksize_;