1 /* Copyright 2021 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_LITE_TOOLS_UTILS_H_ 17 #define TENSORFLOW_LITE_TOOLS_UTILS_H_ 18 19 #include <memory> 20 21 #include "tensorflow/lite/c/common.h" 22 23 namespace tflite { 24 namespace utils { 25 // Implement type erasure with unique_ptr with custom deleter. 26 using VoidUniquePtr = std::unique_ptr<void, void (*)(void*)>; 27 28 // Represents any input tensor data to TfLite model. 29 struct InputTensorData { InputTensorDataInputTensorData30 InputTensorData() : data(nullptr, nullptr) {} 31 32 VoidUniquePtr data; 33 size_t bytes; 34 }; 35 36 // Returns random test data that can be used for testing purposes only. 37 // Data returned should be between 'low_range' and 'high_range'. 38 InputTensorData CreateRandomTensorData(const TfLiteTensor& tensor, 39 float low_range, float high_range); 40 41 // Fills out params 'low_range' and 'high_range' with range for tensor type 42 // 'type'. Note that these ranges returned are just dummy used only for 43 // benchmarking and/or testing purposes. 44 void GetDataRangesForType(TfLiteType type, float* low_range, float* high_range); 45 46 } // namespace utils 47 } // namespace tflite 48 49 #endif // TENSORFLOW_LITE_TOOLS_UTILS_H_ 50