reid from https://github.com/michuanhaohao/reid-strong-baseline
zhangmeng
2020-01-17 f7c4a3cfd07adede3308f8d9d3d7315427d90a7c
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// Copyright 2004-present Facebook. All Rights Reserved.
 
#ifndef CAFFE2_OPERATORS_BATCH_SPARSE_TO_DENSE_OP_H_
#define CAFFE2_OPERATORS_BATCH_SPARSE_TO_DENSE_OP_H_
 
#include "caffe2/core/context.h"
#include "caffe2/core/operator.h"
#include "caffe2/utils/math.h"
 
namespace caffe2 {
 
template <typename T, class Context>
class BatchSparseToDenseOp : public Operator<Context> {
 public:
  USE_OPERATOR_CONTEXT_FUNCTIONS;
  template <class... Args>
  explicit BatchSparseToDenseOp(Args&&... args)
      : Operator<Context>(std::forward<Args>(args)...),
        OP_SINGLE_ARG(int64_t, "dense_last_dim", dense_last_dim_, -1),
        OP_SINGLE_ARG(T, "default_value", default_value_, static_cast<T>(0)) {}
  bool RunOnDevice() override;
 
 private:
  int64_t dense_last_dim_;
  T default_value_;
  INPUT_TAGS(LENGTHS, INDICES, VALUES);
};
 
template <typename T, class Context>
class BatchDenseToSparseOp : public Operator<Context> {
 public:
  USE_OPERATOR_CONTEXT_FUNCTIONS;
  template <class... Args>
  explicit BatchDenseToSparseOp(Args&&... args)
      : Operator<Context>(std::forward<Args>(args)...) {}
  bool RunOnDevice() override;
 
 private:
  int64_t dense_last_dim_;
  INPUT_TAGS(LENGTHS, INDICES, DENSE);
};
 
} // namespace caffe2
 
#endif // CAFFE2_OPERATORS_BATCH_SPARSE_TO_DENSE_OP_H_