tensorflow/compiler/mlir/lite/utils/perception_ops_utils.h

/* 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_COMPILER_MLIR_LITE_UTILS_PERCEPTION_OPS_UTILS_H_
#define TENSORFLOW_COMPILER_MLIR_LITE_UTILS_PERCEPTION_OPS_UTILS_H_

#include "mlir/Dialect/Func/IR/FuncOps.h"  // from @llvm-project
#include "mlir/IR/Attributes.h"  // from @llvm-project
#include "mlir/IR/BuiltinOps.h"  // from @llvm-project
#include "mlir/Support/LogicalResult.h"  // from @llvm-project
#include "tensorflow/compiler/mlir/tensorflow/ir/tf_attributes.h"

namespace mlir {
namespace TFL {

// Fuse MaxUnpooling2D ops annotated by tf.function to a TFLite custom op.
class ConvertMaxUnpoolingFunc {
 public:
  explicit ConvertMaxUnpoolingFunc(func::FuncOp func, mlir::TF::FuncAttr attr)
      : func_(func), attr_(attr) {}

  LogicalResult RewriteFunc();

  LogicalResult VerifySignature();

 private:
  LogicalResult CreateCustomOptions(std::string& custom_option_buffer);

  func::FuncOp func_;
  mlir::TF::FuncAttr attr_;
};

// Fuse DenseImageWarp ops annotated by tf.function to a TFLite custom op.
class ConvertDenseImageWarpFunc {
 public:
  explicit ConvertDenseImageWarpFunc(func::FuncOp func) : func_(func) {}

  LogicalResult RewriteFunc();

  LogicalResult VerifySignature();

 private:
  func::FuncOp func_;
};

}  // end namespace TFL
}  // end namespace mlir

#endif  // TENSORFLOW_COMPILER_MLIR_LITE_UTILS_PERCEPTION_OPS_UTILS_H_