e480d8f7ff
This is mainly to support Windows where weak symbols are not supported. PiperOrigin-RevId: 312011534 Change-Id: I27c6b206b8aa8ded2d2671c2fca843574f75752b
53 lines
1.9 KiB
C++
53 lines
1.9 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.
|
|
==============================================================================*/
|
|
#include "tensorflow/lite/tflite_with_xnnpack_optional.h"
|
|
|
|
#include "tensorflow/lite/core/macros.h"
|
|
|
|
#ifdef TFLITE_BUILD_WITH_XNNPACK_DELEGATE
|
|
#include "tensorflow/lite/delegates/xnnpack/xnnpack_delegate.h"
|
|
#endif
|
|
|
|
namespace tflite {
|
|
|
|
using TfLiteDelegatePtr =
|
|
std::unique_ptr<TfLiteDelegate, void (*)(TfLiteDelegate*)>;
|
|
|
|
#ifndef TFLITE_BUILD_WITH_XNNPACK_DELEGATE
|
|
// Using weak symbols to create a delegate allows automatic injection of the
|
|
// delegate simply by adding it as a dependency. See the strong override in
|
|
// lite/tflite_with_xnnpack.cc,
|
|
TFLITE_ATTRIBUTE_WEAK TfLiteDelegatePtr
|
|
AcquireXNNPACKDelegate(int num_threads) {
|
|
return TfLiteDelegatePtr(nullptr, [](TfLiteDelegate*) {});
|
|
}
|
|
#endif
|
|
|
|
#ifdef TFLITE_BUILD_WITH_XNNPACK_DELEGATE
|
|
TfLiteDelegatePtr MaybeCreateXNNPACKDelegate(int num_threads) {
|
|
auto opts = TfLiteXNNPackDelegateOptionsDefault();
|
|
// Note that we don't want to use the thread pool for num_threads == 1.
|
|
opts.num_threads = num_threads > 1 ? num_threads : 0;
|
|
return TfLiteDelegatePtr(TfLiteXNNPackDelegateCreate(&opts),
|
|
TfLiteXNNPackDelegateDelete);
|
|
}
|
|
#else
|
|
TfLiteDelegatePtr MaybeCreateXNNPACKDelegate(int num_threads) {
|
|
return AcquireXNNPACKDelegate(num_threads);
|
|
}
|
|
#endif
|
|
|
|
} // namespace tflite
|