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Diffstat (limited to 'tensorflow/contrib/lite/delegates/flex/delegate.h')
-rw-r--r-- | tensorflow/contrib/lite/delegates/flex/delegate.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/tensorflow/contrib/lite/delegates/flex/delegate.h b/tensorflow/contrib/lite/delegates/flex/delegate.h new file mode 100644 index 0000000000..1017780dc7 --- /dev/null +++ b/tensorflow/contrib/lite/delegates/flex/delegate.h @@ -0,0 +1,59 @@ +/* Copyright 2018 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_CONTRIB_LITE_DELEGATES_FLEX_DELEGATE_H_ +#define TENSORFLOW_CONTRIB_LITE_DELEGATES_FLEX_DELEGATE_H_ + +#include "tensorflow/contrib/lite/c/c_api_internal.h" +#include "tensorflow/contrib/lite/delegates/flex/delegate_data.h" + +namespace tflite { + +// WARNING: This is an experimental interface that is subject to change. +// Delegate that can be used to extract parts of a graph that are designed to be +// executed by TensorFlow's runtime via Eager. +// +// The interpreter must be constructed after the FlexDelegate and destructed +// before the FlexDelegate. This delegate may be used with multiple +// interpreters, but it is *not* thread-safe. +// +// Usage: +// auto delegate = FlexDelegate::Create(); +// ... build interpreter ... +// +// if (delegate) { +// interpreter->ModifyGraphWithDelegate( +// delegate.get(), /*allow_dynamic_tensors=*/true); +// } +// ... run inference ... +// ... destroy interpreter ... +// ... destroy delegate ... +class FlexDelegate : public TfLiteDelegate { + public: + // Creates a delegate that supports TF ops. + // + // If the underyling TF Flex context creation fails, returns null. + static std::unique_ptr<FlexDelegate> Create(); + + ~FlexDelegate(); + + private: + explicit FlexDelegate(std::unique_ptr<flex::DelegateData> delegate_data); + + std::unique_ptr<flex::DelegateData> delegate_data_; +}; + +} // namespace tflite + +#endif // TENSORFLOW_CONTRIB_LITE_DELEGATES_FLEX_DELEGATE_H_ |