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/*
* Copyright (c) 2017 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_SUBTENSOR_H__
#define __ARM_COMPUTE_GRAPH_SUBTENSOR_H__
#include "arm_compute/graph/ITensorAccessor.h"
#include "arm_compute/graph/Tensor.h"
#include "arm_compute/graph/Types.h"
#include "support/ToolchainSupport.h"
#include <memory>
namespace arm_compute
{
namespace graph
{
/** SubTensor class */
class SubTensor final
{
public:
/** Default Constructor */
SubTensor();
/** Constructor
*
* @param[in] parent Parent to create sub-tensor from
* @param[in] tensor_shape Sub-tensor shape
* @param[in] coords Starting coordinates of the sub-tensor in the parent tensor
*/
SubTensor(Tensor &parent, TensorShape tensor_shape, Coordinates coords);
/** Constructor
*
* @param[in] parent Parent to create sub-tensor from
* @param[in] tensor_shape Sub-tensor shape
* @param[in] coords Starting coordinates of the sub-tensor in the parent tensor
* @param[in] target Execution target
*/
SubTensor(ITensor *parent, TensorShape tensor_shape, Coordinates coords, Hint target);
/** Prevent instances of this class from being copied (As this class contains pointers) */
SubTensor(const SubTensor &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
SubTensor &operator=(const SubTensor &) = delete;
/** Allow instances of this class to be moved */
SubTensor(SubTensor &&) = default;
/** Allow instances of this class to be moved */
SubTensor &operator=(SubTensor &&) = default;
/** Default Destructor */
~SubTensor() = default;
/** Sets the given TensorInfo to the tensor
*
* @param[in] info TensorInfo to set
*/
void set_info(SubTensorInfo &&info);
/** Returns tensor's TensorInfo
*
* @return TensorInfo of the tensor
*/
const SubTensorInfo &info() const;
/** Returns a pointer to the internal tensor
*
* @return Tensor
*/
ITensor *tensor();
/** Return the target that this tensor is pinned on
*
* @return Target of the tensor
*/
Hint target() const;
private:
/** Instantiates a sub-tensor */
void instantiate_subtensor();
private:
Hint _target; /**< Target that this tensor is pinned on */
Coordinates _coords; /**< SubTensor Coordinates */
SubTensorInfo _info; /**< SubTensor metadata */
ITensor *_parent; /**< Parent tensor */
std::unique_ptr<ITensor> _subtensor; /**< SubTensor */
};
} // namespace graph
} // namespace arm_compute
#endif /* __ARM_COMPUTE_GRAPH_SUBTENSOR_H__ */
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