1 | /* Copyright 2016 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_UTIL_MIRROR_PAD_MODE_H_ |
17 | #define TENSORFLOW_CORE_UTIL_MIRROR_PAD_MODE_H_ |
18 | |
19 | // This file contains helper routines to deal with padding in various ops and |
20 | // kernels. |
21 | |
22 | #include <string> |
23 | |
24 | #include "tensorflow/core/lib/core/status.h" |
25 | #include "tensorflow/core/lib/core/stringpiece.h" |
26 | |
27 | namespace tensorflow { |
28 | |
29 | // REFLECT: Border elements are not mirrored to padded regions. |
30 | // SYMMETRIC: Border elements are mirrored to padded regions. |
31 | // |
32 | // For example, if two elements are padded to the right of an array [1, 2, 3], |
33 | // then the result is [1, 2, 3, 2, 1] for REFLECT mode, and is [1, 2, 3, 3, 2] |
34 | // for SYMMETRIC mode. |
35 | enum class MirrorPadMode { |
36 | REFLECT = 1, |
37 | SYMMETRIC = 2, |
38 | }; |
39 | |
40 | // Return the string containing the list of valid padding modes, that can be |
41 | // used as an Attr() in REGISTER_OP. |
42 | string GetMirrorPadModeAttrString(); |
43 | |
44 | // Forward declaration to avoid including core/framework/graph.proto. |
45 | class NodeDef; |
46 | |
47 | // Specialization to parse an attribute directly into a MirrorPadMode enum. |
48 | Status GetNodeAttr(const NodeDef& node_def, StringPiece attr_name, |
49 | MirrorPadMode* value); |
50 | |
51 | } // end namespace tensorflow |
52 | |
53 | #endif // TENSORFLOW_CORE_UTIL_MIRROR_PAD_MODE_H_ |
54 | |