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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__ */