1 /* Copyright 2020 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 #include "tensorflow_lite_support/cc/port/default/tflite_wrapper.h" 17 18 #include "absl/status/status.h" 19 #include "tensorflow_lite_support/cc/port/status_macros.h" 20 21 namespace tflite { 22 namespace support { 23 InitializeWithFallback(std::function<absl::Status (std::unique_ptr<tflite::Interpreter> *)> interpreter_initializer,const tflite::proto::ComputeSettings & compute_settings)24absl::Status TfLiteInterpreterWrapper::InitializeWithFallback( 25 std::function<absl::Status(std::unique_ptr<tflite::Interpreter>*)> 26 interpreter_initializer, 27 const tflite::proto::ComputeSettings& compute_settings) { 28 if (compute_settings.has_preference() || 29 compute_settings.has_tflite_settings()) { 30 return absl::UnimplementedError( 31 "Acceleration via ComputeSettings is not supported yet."); 32 } 33 RETURN_IF_ERROR(interpreter_initializer(&interpreter_)); 34 return interpreter_->AllocateTensors() != kTfLiteOk 35 ? absl::InternalError( 36 "TFLite interpreter: AllocateTensors() failed.") 37 : absl::OkStatus(); 38 } 39 InvokeWithFallback(const std::function<absl::Status (tflite::Interpreter * interpreter)> & set_inputs)40absl::Status TfLiteInterpreterWrapper::InvokeWithFallback( 41 const std::function<absl::Status(tflite::Interpreter* interpreter)>& 42 set_inputs) { 43 RETURN_IF_ERROR(set_inputs(interpreter_.get())); 44 return interpreter_->Invoke() != kTfLiteOk 45 ? absl::InternalError("TFLite interpreter: Invoke() failed.") 46 : absl::OkStatus(); 47 } 48 InvokeWithoutFallback()49absl::Status TfLiteInterpreterWrapper::InvokeWithoutFallback() { 50 return interpreter_->Invoke() != kTfLiteOk 51 ? absl::InternalError("TFLite interpreter: Invoke() failed.") 52 : absl::OkStatus(); 53 } 54 Cancel()55void TfLiteInterpreterWrapper::Cancel() { 56 // NOP 57 } 58 59 } // namespace support 60 } // namespace tflite 61