utils.h

/* Copyright 2023 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_UTILS_UTILS_H_
#define TENSORFLOW_LITE_DELEGATES_UTILS_UTILS_H_

#include <memory>
#include <vector>

#include "absl/status/status.h"
#include "tensorflow/lite/c/c_api_opaque.h"
#include "tensorflow/lite/c/c_api_types.h"
#include "tensorflow/lite/delegates/utils/ret_macros.h"

namespace tflite::delegates::utils {

// Returns kTfLiteOk if the status is ok;
// Otherwise, log the error message and returns kTfLiteError.
TfLiteStatus ConvertToTfLiteStatus(absl::Status status);

// Constructs a TfLiteIntArray from std::vector.
std::unique_ptr<TfLiteIntArray, decltype(&TfLiteIntArrayFree)>
BuildTfLiteIntArray(const std::vector<int>& data);

inline bool IsPowerOfTwo(size_t x) { return x && ((x & (x - 1)) == 0); }

// Round up "size" to the nearest multiple of "multiple".
// "multiple" must be a power of 2.
inline uint32_t RoundUp(uint32_t size, uint32_t multiple) {
  TFLITE_ABORT_CHECK(IsPowerOfTwo(multiple), "");  // Crash OK
  return (size + (multiple - 1)) & ~(multiple - 1);
}

}  // namespace tflite::delegates::utils

#endif  // TENSORFLOW_LITE_DELEGATES_UTILS_UTILS_H_