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/*
* Copyright (c) 2023 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 CKW_SRC_TENSOR3DMAPPER_H
#define CKW_SRC_TENSOR3DMAPPER_H
#include <string>
namespace ckw
{
// Forward declarations
class ITensor;
enum class TensorSamplerFormat;
struct TileVariable;
/** This internal-only class is responsible to map an Nd tensor spatial dimensions to a 3d tensor spatial dimensions with the
* help of TensorSamplerFormat.
* Attention: The batch is not considered as a spatial dimension and it is treated as an offset
*
* The aim of the dimensionality reduction is primarily to reduce
* the address calculation to:
* x + y * stride_y + z * stride_z + offset, where offset is determined by the batch (for example, b * stride_batch).
*
*/
class Tensor3dMapper
{
public:
/** Constructor */
Tensor3dMapper(ITensor *tensor, TensorSamplerFormat format);
/** Get dimension x as string */
TileVariable dim_x() const;
/** Get dimension y as string */
TileVariable dim_y() const;
/** Get dimension z as string */
TileVariable dim_z() const;
/** Get batch dimension as string */
TileVariable dim_batch() const;
/** Get stride for dimension x as string */
TileVariable stride_x() const;
/** Get stride for dimension y as string */
TileVariable stride_y() const;
/** Get stride for dimension z as string */
TileVariable stride_z() const;
/** Get stride for batch dimension as string */
TileVariable stride_batch() const;
private:
ITensor *_tensor;
TensorSamplerFormat _format;
};
} // namespace ckw
#endif /* CKW_SRC_TENSOR3DMAPPER_H */
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