Georgios Pinitas | 6d9d6f4 | 2018-12-24 16:10:47 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018-2019 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #ifndef __ARM_COMPUTE_NE_STRIDED_SLICE_KERNEL_H__ |
| 25 | #define __ARM_COMPUTE_NE_STRIDED_SLICE_KERNEL_H__ |
| 26 | |
| 27 | #include "arm_compute/core/NEON/INEKernel.h" |
| 28 | #include "arm_compute/core/Types.h" |
| 29 | |
| 30 | #include <cstdint> |
| 31 | |
| 32 | namespace arm_compute |
| 33 | { |
| 34 | // Forward declarations |
| 35 | class ITensor; |
| 36 | |
| 37 | /** Interface for the kernel to perform tensor strided slicing */ |
| 38 | class NEStridedSliceKernel : public INEKernel |
| 39 | { |
| 40 | public: |
| 41 | const char *name() const override |
| 42 | { |
| 43 | return "NEStridedSliceKernel"; |
| 44 | } |
| 45 | /** Default constructor */ |
| 46 | NEStridedSliceKernel(); |
| 47 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 48 | NEStridedSliceKernel(const NEStridedSliceKernel &) = delete; |
| 49 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 50 | NEStridedSliceKernel &operator=(const NEStridedSliceKernel &) = delete; |
| 51 | /** Allow instances of this class to be moved */ |
| 52 | NEStridedSliceKernel(NEStridedSliceKernel &&) = default; |
| 53 | /** Allow instances of this class to be moved */ |
| 54 | NEStridedSliceKernel &operator=(NEStridedSliceKernel &&) = default; |
| 55 | /** Default destructor */ |
| 56 | ~NEStridedSliceKernel() = default; |
| 57 | /** Configure kernel |
| 58 | * |
| 59 | * @note Supported tensor rank: up to 4 |
| 60 | * |
| 61 | * @param[in] input Source tensor. Data type supported: U8/S8/QASYMM8/U16/S16/U32/S32/F16/F32 |
| 62 | * @param[out] output Destination tensor. Data type supported: Same as @p input |
| 63 | * @param[in] starts The starts of the dimensions of the input tensor to be sliced. The length must be of rank(input). |
| 64 | * @param[in] ends The ends of the dimensions of the input tensor to be sliced. The length must be of rank(input). |
| 65 | * @param[in] strides The strides of the dimensions of the input tensor to be sliced. The length must be of rank(input). |
| 66 | * @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. |
| 67 | * @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. |
| 68 | * @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. |
| 69 | * A slice of size 1 starting from starts[i] in the dimension must be preserved. |
| 70 | */ |
| 71 | void configure(const ITensor *input, ITensor *output, |
| 72 | const Coordinates &starts, const Coordinates &ends, const BiStrides &strides, |
| 73 | int32_t begin_mask, int32_t end_mask, int32_t shrink_axis_mask); |
| 74 | |
| 75 | /** Static function to check if given info will lead to a valid configuration of @ref CLStridedSliceKernel |
| 76 | * |
| 77 | * @note Supported tensor rank: up to 4 |
| 78 | * |
| 79 | * @param[in] input Source tensor info. Data type supported: U8/S8/QASYMM8/U16/S16/U32/S32/F16/F32 |
| 80 | * @param[in] output Destination tensor info. Data type supported: Same as @p input |
| 81 | * @param[in] starts The starts of the dimensions of the input tensor to be sliced. The length must be of rank(input). |
| 82 | * @param[in] ends The ends of the dimensions of the input tensor to be sliced. The length must be of rank(input). |
| 83 | * @param[in] strides The strides of the dimensions of the input tensor to be sliced. The length must be of rank(input). |
| 84 | * @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. |
| 85 | * @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. |
| 86 | * @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. |
| 87 | * A slice of size 1 starting from starts[i] in the dimension must be preserved. |
| 88 | */ |
| 89 | static Status validate(const ITensorInfo *input, const ITensorInfo *output, |
| 90 | const Coordinates &starts, const Coordinates &ends, const BiStrides &strides, |
| 91 | int32_t begin_mask, int32_t end_mask, int32_t shrink_axis_mask); |
| 92 | |
| 93 | // Inherited methods overridden: |
| 94 | void run(const Window &window, const ThreadInfo &info) override; |
| 95 | |
| 96 | private: |
| 97 | const ITensor *_input; /**< Source tensor */ |
| 98 | ITensor *_output; /**< Destination tensor */ |
| 99 | Coordinates _starts_abs; /**< Absolute start coordinates */ |
| 100 | Coordinates _final_strides; /**< Final strides */ |
| 101 | int32_t _shrink_mask; /**< Shrink axis mask */ |
| 102 | }; |
| 103 | } // namespace arm_compute |
| 104 | #endif /*__ARM_COMPUTE_NE_STRIDED_SLICE_KERNEL_H__ */ |