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Diffstat (limited to 'src/core/NEON/kernels/NEGatherKernel.h')
-rw-r--r-- | src/core/NEON/kernels/NEGatherKernel.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/NEGatherKernel.h b/src/core/NEON/kernels/NEGatherKernel.h new file mode 100644 index 0000000000..b8c069f99e --- /dev/null +++ b/src/core/NEON/kernels/NEGatherKernel.h @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2019-2023 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 ARM_COMPUTE_NEGATHERKERNEL_H +#define ARM_COMPUTE_NEGATHERKERNEL_H + +#include "arm_compute/core/Types.h" + +#include "src/core/NEON/INEKernel.h" + +namespace arm_compute +{ +// Forward declarations +class ITensor; + +/** Kernel to perform gather operation. */ +class NEGatherKernel : public INEKernel +{ +public: + /** Default constructor. */ + NEGatherKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers). */ + NEGatherKernel(const NEGatherKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers). */ + NEGatherKernel &operator=(const NEGatherKernel &) = delete; + /** Allow instances of this class to be moved. */ + NEGatherKernel(NEGatherKernel &&) = default; + /** Allow instances of this class to be moved. */ + NEGatherKernel &operator=(NEGatherKernel &&) = default; + /** Default detructor */ + ~NEGatherKernel() = default; + + /** Name of the kernel + * + * @return Kernel name + */ + const char *name() const override + { + return "NEGatherKernel"; + } + /** Initialise the kernel's inputs and outputs + * + * @param[in] input Source tensor. Supported tensor rank: up to 4. Data type supported: All + * @param[in] indices Indices tensor. Supported tensor rank: up to 3. Must be one of the following type: U32/S32. Each value Must be in range [0, input.shape[@p axis]) + * @note 2D or 3D indices are only supported for the axis 1. + * @param[out] output Destination tensor. Data type supported: Same as @p input + * @param[in] axis (Optional) The axis in @p input to gather @p indices from. Negative values wrap around. Defaults to 0. + * + */ + void configure(const ITensor *input, const ITensor *indices, ITensor *output, int axis = 0); + + /** Static function to check if given info will lead to a valid configuration + * + * Similar to @ref NEGatherKernel::configure() + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *indices, const ITensorInfo *output, int axis); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + template <typename TIndex> + void gather_common(const Window &window, const ThreadInfo &info); + + using kernel_ptr = void (NEGatherKernel::*)(const Window &window, const ThreadInfo &info); + + const ITensor *_input; + const ITensor *_indices; + int _axis; + ITensor *_output; + kernel_ptr _func; + + Strides _src_it_strides; + Strides _idx_it_strides; +}; +} // namespace arm_compute +#endif /* ARM_COMPUTE_NEGATHERKERNEL_H */ |