1 | /* Copyright 2017 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 | #ifndef TENSORFLOW_LITE_TOCO_TOCO_PORT_H_ |
16 | #define TENSORFLOW_LITE_TOCO_TOCO_PORT_H_ |
17 | |
18 | // Portability layer for toco tool. Mainly, abstract filesystem access so we |
19 | // can build and use on google internal environments and on OSX. |
20 | |
21 | #include <string> |
22 | #include "google/protobuf/text_format.h" |
23 | #include "tensorflow/lite/toco/format_port.h" |
24 | #include "tensorflow/core/lib/core/status.h" |
25 | #include "tensorflow/core/platform/logging.h" |
26 | #include "tensorflow/core/platform/platform.h" |
27 | #if defined(PLATFORM_GOOGLE) |
28 | #include "absl/strings/cord.h" |
29 | #endif // PLATFORM_GOOGLE |
30 | |
31 | #ifdef PLATFORM_GOOGLE |
32 | #define TFLITE_PROTO_NS proto2 |
33 | #else |
34 | #define TFLITE_PROTO_NS google::protobuf |
35 | #endif |
36 | |
37 | #ifdef __ANDROID__ |
38 | #include <sstream> |
39 | namespace std { |
40 | |
41 | template <typename T> |
42 | std::string to_string(T value) |
43 | { |
44 | std::ostringstream os ; |
45 | os << value ; |
46 | return os.str() ; |
47 | } |
48 | |
49 | #ifdef __ARM_ARCH_7A__ |
50 | double round(double x); |
51 | #endif |
52 | } |
53 | #endif |
54 | |
55 | namespace toco { |
56 | namespace port { |
57 | |
58 | // Things like tests use other initialization routines that need control |
59 | // of flags. However, for testing we still want to use toco_port.h facilities. |
60 | // This function sets initialized flag trivially. |
61 | void InitGoogleWasDoneElsewhere(); |
62 | void InitGoogle(const char* usage, int* argc, char*** argv, bool remove_flags); |
63 | void CheckInitGoogleIsDone(const char* message); |
64 | |
65 | namespace file { |
66 | class Options {}; |
67 | inline Options Defaults() { |
68 | Options o; |
69 | return o; |
70 | } |
71 | tensorflow::Status GetContents(const std::string& filename, |
72 | std::string* contents, const Options& options); |
73 | tensorflow::Status SetContents(const std::string& filename, |
74 | const std::string& contents, |
75 | const Options& options); |
76 | std::string JoinPath(const std::string& a, const std::string& b); |
77 | tensorflow::Status Writable(const std::string& filename); |
78 | tensorflow::Status Readable(const std::string& filename, |
79 | const Options& options); |
80 | tensorflow::Status Exists(const std::string& filename, const Options& options); |
81 | } // namespace file |
82 | |
83 | // Copy `src` string to `dest`. User must ensure `dest` has enough space. |
84 | #if defined(PLATFORM_GOOGLE) |
85 | void CopyToBuffer(const ::absl::Cord& src, char* dest); |
86 | #endif // PLATFORM_GOOGLE |
87 | void CopyToBuffer(const std::string& src, char* dest); |
88 | |
89 | inline uint32 ReverseBits32(uint32 n) { |
90 | n = ((n >> 1) & 0x55555555) | ((n & 0x55555555) << 1); |
91 | n = ((n >> 2) & 0x33333333) | ((n & 0x33333333) << 2); |
92 | n = ((n >> 4) & 0x0F0F0F0F) | ((n & 0x0F0F0F0F) << 4); |
93 | return (((n & 0xFF) << 24) | ((n & 0xFF00) << 8) | ((n & 0xFF0000) >> 8) | |
94 | ((n & 0xFF000000) >> 24)); |
95 | } |
96 | } // namespace port |
97 | |
98 | inline bool ParseFromStringOverload(const std::string& in, |
99 | TFLITE_PROTO_NS::Message* proto) { |
100 | return TFLITE_PROTO_NS::TextFormat::ParseFromString(in, proto); |
101 | } |
102 | |
103 | template <typename Proto> |
104 | bool ParseFromStringEitherTextOrBinary(const std::string& input_file_contents, |
105 | Proto* proto) { |
106 | if (proto->ParseFromString(input_file_contents)) { |
107 | return true; |
108 | } |
109 | |
110 | if (ParseFromStringOverload(input_file_contents, proto)) { |
111 | return true; |
112 | } |
113 | |
114 | return false; |
115 | } |
116 | |
117 | } // namespace toco |
118 | |
119 | #endif // TENSORFLOW_LITE_TOCO_TOCO_PORT_H_ |
120 | |