51 lines
2.0 KiB
C++
51 lines
2.0 KiB
C++
/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
==============================================================================*/
|
|
|
|
#ifndef TENSORFLOW_LITE_DELEGATES_INTERPRETER_UTILS_H_
|
|
#define TENSORFLOW_LITE_DELEGATES_INTERPRETER_UTILS_H_
|
|
|
|
#include "tensorflow/lite/interpreter.h"
|
|
|
|
// Utility functions and classes for using delegates.
|
|
|
|
namespace tflite {
|
|
namespace delegates {
|
|
class InterpreterUtils {
|
|
public:
|
|
/// Invokes an interpreter with automatic fallback from delegation to CPU.
|
|
///
|
|
/// If using the delegate fails, the delegate is automatically undone and an
|
|
/// attempt made to return the interpreter to an invokable state.
|
|
///
|
|
/// Allowing the fallback is suitable only if both of the following hold:
|
|
/// - The caller is known not to cache pointers to tensor data across Invoke()
|
|
/// calls.
|
|
/// - The model is not stateful (no variables, no LSTMs) or the state isn't
|
|
/// needed between batches.
|
|
///
|
|
/// Returns one of the following three status codes:
|
|
/// 1. kTfLiteOk: Success. Output is valid.
|
|
/// 2. kTfLiteDelegateError: Delegate error but fallback succeeded. Output is
|
|
/// valid.
|
|
/// NOTE: This undoes all delegates previously applied to the Interpreter.
|
|
/// 3. kTfLiteError: Unexpected/runtime failure. Output is invalid.
|
|
/// WARNING: This is an experimental API and subject to change.
|
|
static TfLiteStatus InvokeWithCPUFallback(Interpreter* interpreter);
|
|
};
|
|
} // namespace delegates
|
|
} // namespace tflite
|
|
|
|
#endif // TENSORFLOW_LITE_DELEGATES_INTERPRETER_UTILS_H_
|