1 | /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. |
2 | |
3 | Licensed under the Apache License, Version 2.0 (the "License"); |
4 | you may not use this file except in compliance with the License. |
5 | You may obtain a copy of the License at |
6 | |
7 | http://www.apache.org/licenses/LICENSE-2.0 |
8 | |
9 | Unless required by applicable law or agreed to in writing, software |
10 | distributed under the License is distributed on an "AS IS" BASIS, |
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | See the License for the specific language governing permissions and |
13 | limitations under the License. |
14 | ==============================================================================*/ |
15 | |
16 | #ifndef TENSORFLOW_CORE_KERNELS_SLICE_OP_H_ |
17 | #define TENSORFLOW_CORE_KERNELS_SLICE_OP_H_ |
18 | |
19 | // Functor definition for SliceOp, must be compilable by nvcc. |
20 | |
21 | #include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor" |
22 | #include "tensorflow/core/framework/tensor_types.h" |
23 | |
24 | namespace tensorflow { |
25 | namespace functor { |
26 | |
27 | template <typename Device, typename T, int NDIMS> |
28 | struct Slice { |
29 | void operator()(const Device& d, typename TTypes<T, NDIMS>::Tensor output, |
30 | typename TTypes<T, NDIMS>::ConstTensor input, |
31 | const Eigen::DSizes<Eigen::DenseIndex, NDIMS>& slice_indices, |
32 | const Eigen::DSizes<Eigen::DenseIndex, NDIMS>& slice_sizes) { |
33 | MaybeWith32BitIndexing<Device>( |
34 | [&](auto output32, auto input32, auto slice_indices32, |
35 | auto slice_sizes32) { |
36 | output32.device(d) = input32.slice(slice_indices32, slice_sizes32); |
37 | }, |
38 | output, input, slice_indices, slice_sizes); |
39 | } |
40 | }; |
41 | |
42 | } // namespace functor |
43 | } // namespace tensorflow |
44 | |
45 | #endif // TENSORFLOW_CORE_KERNELS_SLICE_OP_H_ |
46 | |