2 * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef __TFLITE_IMPORT_H__
18 #define __TFLITE_IMPORT_H__
20 #include <mio/tflite/schema_generated.h>
22 #include <souschef/TensorFiller.h>
24 #include <tflchef.pb.h>
32 using TFliteSubGraphs_t = flatbuffers::Vector<flatbuffers::Offset<tflite::SubGraph>>;
33 using TFliteTensors_t = flatbuffers::Vector<flatbuffers::Offset<tflite::Tensor>>;
34 using TFliteBuffers_t = flatbuffers::Vector<flatbuffers::Offset<tflite::Buffer>>;
35 using TFliteOperators_t = flatbuffers::Vector<flatbuffers::Offset<tflite::Operator>>;
37 const char *tensor_type(const tflite::Tensor *tensor);
38 const char *tensor_name(const tflite::Tensor *tensor);
39 bool is_valid(const tflite::OperatorCode *opcode);
40 bool is_custom(const tflite::OperatorCode *opcode);
43 * @brief Loads TF lite file and provides helpers to access attributes
45 class TFliteImport : public souschef::TensorFiller
48 TFliteImport(const tflite::Model *model);
50 TFliteImport() = delete;
53 bool select_sub_graph(uint32_t subgraph);
56 const TFliteBuffers_t *buffers() { return _buffers; }
57 const TFliteTensors_t *tensors() { return _tensors; }
58 const TFliteOperators_t *operators() { return _operators; }
59 const std::vector<int32_t> &inputs() const { return _inputs; }
60 const std::vector<int32_t> &outputs() const { return _outputs; }
62 uint32_t num_subgraph() const { return _subgraphs->Length(); }
64 tflite::BuiltinOperator builtin_code(const tflite::Operator *op) const;
65 std::string opcode_name(const tflite::Operator *op) const;
66 size_t buffer_info(const tflite::Tensor *tensor, const uint8_t **buff_data);
69 const TFliteSubGraphs_t *_subgraphs{nullptr};
70 const TFliteBuffers_t *_buffers{nullptr};
71 const TFliteTensors_t *_tensors{nullptr};
72 const TFliteOperators_t *_operators{nullptr};
74 std::vector<const tflite::OperatorCode *> _op_codes{};
75 std::vector<int32_t> _inputs{};
76 std::vector<int32_t> _outputs{};
79 } // namespace tflchef
81 #endif // __TFLITE_IMPORT_H__