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/*
* Copyright (c) 2018-2019 ARM Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef ARM_COMPUTE_GRAPH_SPLIT_LAYER_NODE_H
#define ARM_COMPUTE_GRAPH_SPLIT_LAYER_NODE_H
#include "arm_compute/graph/INode.h"
#include <tuple>
namespace arm_compute
{
namespace graph
{
/** Split Layer node */
class SplitLayerNode final : public INode
{
public:
/** Default Constructor
*
* @param[in] num_splits Number of splits
* @param[in] axis (Optional) Axis to split on. Supported axis >= 2. Defaults to 0
*/
SplitLayerNode(unsigned int num_splits, unsigned int axis = 0);
/** Computes split layer output descriptor
*
* @param[in] input_descriptor Descriptor of the input tensor
* @param[in] num_splits Number of splits
* @param[in] axis Axis to perform the split on
* @param[in] idx Index of the split
*
* @return A pair with the descriptor of the split and the starting coordinates
*/
static std::pair<TensorDescriptor, Coordinates> compute_output_descriptor(const TensorDescriptor &input_descriptor,
unsigned int num_splits, unsigned int axis, unsigned int idx);
/** Number of splits accessor
*
* @return Number of splits
*/
unsigned int num_splits() const;
/** Split axis accessor
*
* @return Split axis
*/
unsigned int axis() const;
// Inherited overridden methods:
Status validate() const override;
NodeType type() const override;
bool forward_descriptors() override;
TensorDescriptor configure_output(size_t idx) const override;
void accept(INodeVisitor &v) override;
private:
unsigned int _num_splits;
unsigned int _axis;
};
} // namespace graph
} // namespace arm_compute
#endif /* ARM_COMPUTE_GRAPH_SPLIT_LAYER_NODE_H */
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