EVOLUTION-MANAGER

Edit File: cross_op.h

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
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==============================================================================*/

#ifndef TENSORFLOW_CORE_KERNELS_CROSS_OP_H_
#define TENSORFLOW_CORE_KERNELS_CROSS_OP_H_

#include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor"
#include "tensorflow/core/framework/tensor_shape.h"
#include "tensorflow/core/framework/tensor_types.h"

namespace tensorflow {

namespace functor {

template <typename Device, typename Type>
struct Cross {
  void operator()(const Device &d,
                  typename TTypes<Type, 2>::ConstTensor in0_data,
                  typename TTypes<Type, 2>::ConstTensor in1_data,
                  typename TTypes<Type, 2>::Tensor output_data) {
    auto s1 = output_data.template chip<1>(0);
    auto s2 = output_data.template chip<1>(1);
    auto s3 = output_data.template chip<1>(2);

auto u1 = in0_data.template chip<1>(0);
    auto u2 = in0_data.template chip<1>(1);
    auto u3 = in0_data.template chip<1>(2);

auto v1 = in1_data.template chip<1>(0);
    auto v2 = in1_data.template chip<1>(1);
    auto v3 = in1_data.template chip<1>(2);

s1.device(d) = u2 * v3 - u3 * v2;
    s2.device(d) = u3 * v1 - u1 * v3;
    s3.device(d) = u1 * v2 - u2 * v1;
  }
};

}  // namespace functor
}  // namespace tensorflow

#endif  // TENSORFLOW_CORE_KERNELS_CROSS_OP_H_