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Diffstat (limited to 'src/core/NEON/kernels/NEStridedSliceKernel.h')
| -rw-r--r-- | src/core/NEON/kernels/NEStridedSliceKernel.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/NEStridedSliceKernel.h b/src/core/NEON/kernels/NEStridedSliceKernel.h new file mode 100644 index 0000000000..a475f09a17 --- /dev/null +++ b/src/core/NEON/kernels/NEStridedSliceKernel.h @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2018-2020 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_NE_STRIDED_SLICE_KERNEL_H +#define ARM_COMPUTE_NE_STRIDED_SLICE_KERNEL_H + +#include "arm_compute/core/Types.h" + +#include "src/core/NEON/INEKernel.h" + +#include <cstdint> + +namespace arm_compute +{ +// Forward declarations +class ITensor; + +/** Interface for the kernel to perform tensor strided slicing */ +class NEStridedSliceKernel : public INEKernel +{ +public: + const char *name() const override + { + return "NEStridedSliceKernel"; + } + /** Default constructor */ + NEStridedSliceKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEStridedSliceKernel(const NEStridedSliceKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEStridedSliceKernel &operator=(const NEStridedSliceKernel &) = delete; + /** Allow instances of this class to be moved */ + NEStridedSliceKernel(NEStridedSliceKernel &&) = default; + /** Allow instances of this class to be moved */ + NEStridedSliceKernel &operator=(NEStridedSliceKernel &&) = default; + /** Default destructor */ + ~NEStridedSliceKernel() = default; + /** Configure kernel + * + * @note Supported tensor rank: up to 4 + * + * @param[in] input Source tensor info. Data type supported: All + * @param[out] output Destination tensor info. Data type supported: Same as @p input + * @param[in] starts The starts of the dimensions of the input tensor to be sliced. The length must be of rank(input). + * @param[in] ends The ends of the dimensions of the input tensor to be sliced. The length must be of rank(input). + * @param[in] strides The strides of the dimensions of the input tensor to be sliced. The length must be of rank(input). + * @param[in] begin_mask If the ith bit of begin_mask is set, starts[i] is ignored and the fullest possible range in that dimension is used instead. + * @param[in] end_mask If the ith bit of end_mask is set, ends[i] is ignored and the fullest possible range in that dimension is used instead. + * @param[in] shrink_axis_mask If the ith bit of shrink_axis_mask is set, it implies that the ith specification shrinks the dimensionality by 1. + * A slice of size 1 starting from starts[i] in the dimension must be preserved. + */ + void configure(const ITensorInfo *input, + ITensorInfo *output, + const Coordinates &starts, + const Coordinates &ends, + const BiStrides &strides, + int32_t begin_mask, + int32_t end_mask, + int32_t shrink_axis_mask); + + /** Static function to check if given info will lead to a valid configuration of @ref NEStridedSliceKernel + * + * @note Supported tensor rank: up to 4 + * + * @param[in] input Source tensor info. Data type supported: All + * @param[in] output Destination tensor info. Data type supported: Same as @p input + * @param[in] starts The starts of the dimensions of the input tensor to be sliced. The length must be of rank(input). + * @param[in] ends The ends of the dimensions of the input tensor to be sliced. The length must be of rank(input). + * @param[in] strides The strides of the dimensions of the input tensor to be sliced. The length must be of rank(input). + * @param[in] begin_mask If the ith bit of begin_mask is set, starts[i] is ignored and the fullest possible range in that dimension is used instead. + * @param[in] end_mask If the ith bit of end_mask is set, ends[i] is ignored and the fullest possible range in that dimension is used instead. + * @param[in] shrink_axis_mask If the ith bit of shrink_axis_mask is set, it implies that the ith specification shrinks the dimensionality by 1. + * A slice of size 1 starting from starts[i] in the dimension must be preserved. + */ + static Status validate(const ITensorInfo *input, + const ITensorInfo *output, + const Coordinates &starts, + const Coordinates &ends, + const BiStrides &strides, + int32_t begin_mask, + int32_t end_mask, + int32_t shrink_axis_mask); + + // Inherited methods overridden: + void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; + +private: + Coordinates _starts_abs; /**< Absolute start coordinates */ + Coordinates _final_strides; /**< Final strides */ + int32_t _shrink_mask; /**< Shrink axis mask */ +}; +} // namespace arm_compute +#endif /*ARM_COMPUTE_NE_STRIDED_SLICE_KERNEL_H */ |