1/* Copyright 2016 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#include "tensorflow/core/util/tensor_format.h"
17
18namespace tensorflow {
19
20string GetConvnetDataFormatAttrString() {
21 return "data_format: { 'NHWC', 'NCHW' } = 'NHWC' ";
22}
23
24string GetConvnet3dDataFormatAttrString() {
25 return "data_format: { 'NDHWC', 'NCDHW' } = 'NDHWC' ";
26}
27
28string GetConvnetDataFormat2D3DAttrString() {
29 return "data_format: { 'NHWC', 'NCHW', 'NDHWC', 'NCDHW' } = 'NHWC' ";
30}
31
32string GetConvnetFilterFormatAttrString() {
33 return "filter_format: { 'HWIO', 'OIHW' } = 'HWIO' ";
34}
35
36string GetConvnet3dFilterFormatAttrString() {
37 return "filter_format: { 'DHWIO', 'OIDHW' } = 'DHWIO' ";
38}
39
40string ToString(TensorFormat format) {
41 switch (format) {
42 case FORMAT_NHWC:
43 return "NHWC";
44 case FORMAT_NCHW:
45 return "NCHW";
46 case FORMAT_NCHW_VECT_C:
47 return "NCHW_VECT_C";
48 case FORMAT_NHWC_VECT_W:
49 return "NHWC_VECT_W";
50 case FORMAT_HWNC:
51 return "HWNC";
52 case FORMAT_HWCN:
53 return "HWCN";
54 default:
55 LOG(FATAL) << "Invalid Format: " << static_cast<int32>(format);
56 return "INVALID_FORMAT";
57 }
58}
59
60string ToString(FilterTensorFormat format) {
61 switch (format) {
62 case FORMAT_HWIO:
63 return "HWIO";
64 case FORMAT_OIHW:
65 return "OIHW";
66 case FORMAT_OHWI:
67 return "OHWI";
68 case FORMAT_OIHW_VECT_I:
69 return "OIHW_VECT_I";
70 default:
71 LOG(FATAL) << "Invalid Filter Format: " << static_cast<int32>(format);
72 return "INVALID_FORMAT";
73 }
74}
75
76bool FormatFromString(absl::string_view format_str, TensorFormat* format) {
77 if (format_str == "NHWC" || format_str == "NDHWC") {
78 *format = FORMAT_NHWC;
79 return true;
80 }
81 if (format_str == "NCHW" || format_str == "NCDHW") {
82 *format = FORMAT_NCHW;
83 return true;
84 }
85 if (format_str == "NCHW_VECT_C") {
86 *format = FORMAT_NCHW_VECT_C;
87 return true;
88 }
89 if (format_str == "NHWC_VECT_W") {
90 *format = FORMAT_NHWC_VECT_W;
91 return true;
92 }
93 if (format_str == "HWNC") {
94 *format = FORMAT_HWNC;
95 return true;
96 }
97 if (format_str == "HWCN") {
98 *format = FORMAT_HWCN;
99 return true;
100 }
101 return false;
102}
103
104bool FilterFormatFromString(absl::string_view format_str,
105 FilterTensorFormat* format) {
106 if (format_str == "HWIO" || format_str == "DHWIO") {
107 *format = FORMAT_HWIO;
108 return true;
109 }
110 if (format_str == "OIHW" || format_str == "OIDHW") {
111 *format = FORMAT_OIHW;
112 return true;
113 }
114 if (format_str == "OIHW_VECT_I") {
115 *format = FORMAT_OIHW_VECT_I;
116 return true;
117 }
118 return false;
119}
120
121} // namespace tensorflow
122