// Copyright (c) 2018 PaddlePaddle 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 "paddle/fluid/inference/anakin/convert/reshape.h"
#include <vector>

using anakin::PTuple;

namespace paddle {
namespace inference {
namespace anakin {

template <typename TargetT, ::anakin::Precision PrecisionT>
void ReshapeOpConverter<TargetT, PrecisionT>::operator()(
    const framework::proto::OpDesc &op, const framework::BlockDesc &block_desc,
    const framework::Scope &scope, bool test_mode) {
  framework::OpDesc op_desc(op, nullptr);
  PADDLE_ENFORCE_EQ(op_desc.Input("X").size(), 1UL);
  PADDLE_ENFORCE_EQ(op_desc.Output("Out").size(), 1UL);

  auto input = op_desc.Input("X").front();
  auto output = op_desc.Output("Out").front();

  auto op_name = op_desc.Type() + ":" + op_desc.Output("Out").front();
  this->engine_->AddOp(op_name, "Reshape", {input}, {output});

  auto shape = boost::get<std::vector<int>>(op_desc.GetAttr("shape"));
  if (shape.size() < 4) {
    shape.insert(shape.end(), 4 - shape.size(), 1);
  }
  this->engine_->template AddOpAttr<PTuple<int>>(op_name, "dims", shape);
}

}  // namespace anakin
}  // namespace inference
}  // namespace paddle

#ifdef PADDLE_WITH_CUDA
using reshape_nv_fp32 =
    ::paddle::inference::anakin::ReshapeOpConverter<::anakin::saber::NV,
                                                    ::anakin::Precision::FP32>;
using reshape_nv_int8 =
    ::paddle::inference::anakin::ReshapeOpConverter<::anakin::saber::NV,
                                                    ::anakin::Precision::INT8>;
REGISTER_CUDA_ANAKIN_OP_CONVERTER(reshape, reshape_nv_fp32);
REGISTER_CUDA_INT8_ANAKIN_OP_CONVERTER(reshape, reshape_nv_int8);
#endif

using reshape_cpu_fp32 =
    ::paddle::inference::anakin::ReshapeOpConverter<::anakin::saber::X86,
                                                    ::anakin::Precision::FP32>;
using reshape_cpu_int8 =
    ::paddle::inference::anakin::ReshapeOpConverter<::anakin::saber::X86,
                                                    ::anakin::Precision::INT8>;
REGISTER_CPU_ANAKIN_OP_CONVERTER(reshape, reshape_cpu_fp32);
REGISTER_CPU_INT8_ANAKIN_OP_CONVERTER(reshape, reshape_cpu_int8);