Shape.h

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/*
 * Copyright (c) 2018 Samsung Electronics Co., Ltd. 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 __ONERT_IR_SHAPE_H__
#define __ONERT_IR_SHAPE_H__
 
#include "ir/Layout.h"
 
#include <cassert>
#include <cstdint>
#include <vector>
#include <algorithm>
 
namespace onert
{
namespace ir
{
 
struct FeatureShape
{
  int32_t N; 
  int32_t C; 
  int32_t H; 
  int32_t W; 
  FeatureShape() = default;
  FeatureShape(int32_t depth, int32_t height, int32_t width) : N{1}, C{depth}, H{height}, W{width}
  {
    // DO NOTHING
  }
  FeatureShape(int32_t batch, int32_t depth, int32_t height, int32_t width)
    : N{batch}, C{depth}, H{height}, W{width}
  {
    // DO NOTHING
  }
};
 
struct Shape
{
public:
  static int32_t const kUnspecifiedDim;
  static int32_t const kMaxRank;
 
  Shape() = default;
 
  explicit Shape(int rank) : _dimensions(rank) {}
 
  Shape(std::initializer_list<int32_t> dimensions) : _dimensions(dimensions) {}
 
  int rank() const { return _dimensions.size(); }
 
  const std::vector<int32_t> &dims() const { return _dimensions; }
 
  int32_t dim(int i) const
  {
    assert(rank() != 0 || i == 0);
    return rank() == 0 ? 1 : _dimensions.at(i);
  }
 
  // TODO Fix different behavior with const version
  int32_t &dim(int i) { return _dimensions.at(i); }
 
  uint64_t num_elements() const;
 
public:
  FeatureShape asFeature() const;
 
  void prepend(int32_t d) { _dimensions.insert(_dimensions.cbegin(), d); }
 
  void append(int32_t d) { _dimensions.emplace_back(d); }
 
  void extendRank(int to_rank);
 
  bool hasUnspecifiedDims() const
  {
    return (std::find(_dimensions.begin(), _dimensions.end(), kUnspecifiedDim) !=
            _dimensions.end());
  }
 
private:
  std::vector<int32_t> _dimensions;
};
 
inline bool operator==(const Shape &lhs, const Shape &rhs) { return lhs.dims() == rhs.dims(); }
inline bool operator!=(const Shape &lhs, const Shape &rhs) { return lhs.dims() != rhs.dims(); }
 
Shape convertShape(const Shape &shape, const PermuteType &type);
 
inline bool rankMaybeUnspecified(const ir::Shape &shape) { return (shape.rank() == 0); }
 
} // namespace ir
} // namespace onert
 
#endif // __ONERT_IR_SHAPE_H__