Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
Anthony Barbier | e8a4983 | 2018-01-18 10:04:05 +0000 | [diff] [blame] | 2 | * Copyright (c) 2016-2018 ARM Limited. |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 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_NENONMAXIMASUPPRESSION3x3KERNEL_H__ |
| 25 | #define __ARM_COMPUTE_NENONMAXIMASUPPRESSION3x3KERNEL_H__ |
| 26 | |
| 27 | #include "arm_compute/core/NEON/INEKernel.h" |
| 28 | |
| 29 | #include <cstdint> |
| 30 | |
| 31 | namespace arm_compute |
| 32 | { |
| 33 | class ITensor; |
| 34 | |
| 35 | /** Interface to perform Non-Maxima suppression over a 3x3 window using NEON |
| 36 | * |
| 37 | * @note Used by @ref NEFastCorners and @ref NEHarrisCorners |
| 38 | */ |
| 39 | class NENonMaximaSuppression3x3Kernel : public INEKernel |
| 40 | { |
| 41 | public: |
Anthony Barbier | e8a4983 | 2018-01-18 10:04:05 +0000 | [diff] [blame] | 42 | const char *name() const override |
| 43 | { |
| 44 | return "NENonMaximaSuppression3x3Kernel"; |
| 45 | } |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 46 | /** Default constructor */ |
| 47 | NENonMaximaSuppression3x3Kernel(); |
| 48 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 49 | NENonMaximaSuppression3x3Kernel(const NENonMaximaSuppression3x3Kernel &) = delete; |
| 50 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 51 | NENonMaximaSuppression3x3Kernel &operator=(const NENonMaximaSuppression3x3Kernel &) = delete; |
| 52 | /** Allow instances of this class to be moved */ |
| 53 | NENonMaximaSuppression3x3Kernel(NENonMaximaSuppression3x3Kernel &&) = default; |
| 54 | /** Allow instances of this class to be moved */ |
| 55 | NENonMaximaSuppression3x3Kernel &operator=(NENonMaximaSuppression3x3Kernel &&) = default; |
| 56 | /** Default destructor */ |
| 57 | ~NENonMaximaSuppression3x3Kernel() = default; |
| 58 | |
| 59 | /** Initialise the kernel's sources, destinations and border mode. |
| 60 | * |
| 61 | * @param[in] input Source tensor. Data types supported: U8/F32 |
| 62 | * @param[out] output Destination tensor. Data types supported: same as @p input |
| 63 | * @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant. |
| 64 | */ |
| 65 | void configure(const ITensor *input, ITensor *output, bool border_undefined); |
| 66 | |
| 67 | // Inherited methods overridden: |
Moritz Pflanzer | c186b57 | 2017-09-07 09:48:04 +0100 | [diff] [blame] | 68 | void run(const Window &window, const ThreadInfo &info) override; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 69 | BorderSize border_size() const override; |
| 70 | |
| 71 | protected: |
| 72 | /** Common signature for all the specialised non-maxima suppression 3x3 functions |
| 73 | * |
| 74 | * @param[in] input_ptr Pointer to the input tensor. |
| 75 | * @param[out] output_ptr Pointer to the output tensor |
| 76 | * @param[in] input_stride Stride of the input tensor |
| 77 | */ |
| 78 | using NonMaxSuppr3x3Function = void(const void *__restrict input_ptr, void *__restrict output_ptr, const uint32_t input_stride); |
| 79 | |
| 80 | NonMaxSuppr3x3Function *_func; /**< Non-Maxima suppression function to use for the particular tensor types passed to configure() */ |
| 81 | const ITensor *_input; /**< Source tensor */ |
| 82 | ITensor *_output; /**< Destination tensor */ |
| 83 | }; |
| 84 | |
Ioan-Cristian Szabo | 5edbd1c | 2017-11-13 13:34:08 +0000 | [diff] [blame] | 85 | #ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 86 | /** NEON kernel to perform Non-Maxima suppression 3x3 with intermediate results in FP16 if the input data type is FP32 |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 87 | */ |
| 88 | class NENonMaximaSuppression3x3FP16Kernel : public NENonMaximaSuppression3x3Kernel |
| 89 | { |
| 90 | public: |
Anthony Barbier | e8a4983 | 2018-01-18 10:04:05 +0000 | [diff] [blame] | 91 | const char *name() const override |
| 92 | { |
| 93 | return "NENonMaximaSuppression3x3FP16Kernel"; |
| 94 | } |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 95 | /** Initialise the kernel's sources, destinations and border mode. |
| 96 | * |
| 97 | * @param[in] input Source tensor. Data types supported: U8/F32. |
| 98 | * @param[out] output Destination tensor. Data types supported: same as @p input |
| 99 | * @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant. |
| 100 | */ |
| 101 | void configure(const ITensor *input, ITensor *output, bool border_undefined); |
| 102 | }; |
Ioan-Cristian Szabo | 5edbd1c | 2017-11-13 13:34:08 +0000 | [diff] [blame] | 103 | #else /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 104 | /** NEON kernel to perform Non-Maxima suppression 3x3 with intermediate results in FP16 if the input data type is FP32 */ |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 105 | using NENonMaximaSuppression3x3FP16Kernel = NENonMaximaSuppression3x3Kernel; |
Ioan-Cristian Szabo | 5edbd1c | 2017-11-13 13:34:08 +0000 | [diff] [blame] | 106 | #endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ |
Gian Marco Iodice | 356f643 | 2017-09-22 11:32:21 +0100 | [diff] [blame] | 107 | } // namespace arm_compute |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 108 | #endif /* _ARM_COMPUTE_NENONMAXIMASUPPRESSION3x3KERNEL_H__ */ |