Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016, 2017 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_NESCHARR3x3KERNEL_H__ |
| 25 | #define __ARM_COMPUTE_NESCHARR3x3KERNEL_H__ |
| 26 | |
| 27 | #include "arm_compute/core/NEON/INEKernel.h" |
| 28 | |
| 29 | namespace arm_compute |
| 30 | { |
| 31 | class ITensor; |
| 32 | |
| 33 | /** Interface for the kernel to run a 3x3 Scharr filter on a tensor. |
| 34 | * |
| 35 | * @f[ |
| 36 | * \mathbf{G}_x=\begin{vmatrix} |
| 37 | * -3 & 0 & +3\\ |
| 38 | * -10& 0 & +10\\ |
| 39 | * -3 & 0 & +3 |
| 40 | * \end{vmatrix} |
| 41 | * @f] |
| 42 | */ |
| 43 | class NEScharr3x3Kernel : public INEKernel |
| 44 | { |
| 45 | public: |
| 46 | /** Default constructor */ |
| 47 | NEScharr3x3Kernel(); |
| 48 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 49 | NEScharr3x3Kernel(const NEScharr3x3Kernel &) = delete; |
| 50 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 51 | NEScharr3x3Kernel &operator=(const NEScharr3x3Kernel &) = delete; |
| 52 | /** Allow instances of this class to be moved */ |
| 53 | NEScharr3x3Kernel(NEScharr3x3Kernel &&) = default; |
| 54 | /** Allow instances of this class to be moved */ |
| 55 | NEScharr3x3Kernel &operator=(NEScharr3x3Kernel &&) = default; |
| 56 | /** Default destructor */ |
| 57 | ~NEScharr3x3Kernel() = default; |
| 58 | |
| 59 | /** Initialise the kernel's source, destination and border. |
| 60 | * |
| 61 | * @note At least one of output_x or output_y must be set. |
| 62 | * |
| 63 | * @param[in] input Source tensor. Data type supported: U8. |
| 64 | * @param[out] output_x (Optional) Destination tensor for the X gradient. Data type supported: S16. |
| 65 | * @param[out] output_y (Optional) Destination tensor for the Y gradient. Data type supported: S16. |
| 66 | * @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant. |
| 67 | */ |
| 68 | void configure(const ITensor *input, ITensor *output_x, ITensor *output_y, bool border_undefined); |
| 69 | |
| 70 | // Inherited methods overridden: |
Moritz Pflanzer | c186b57 | 2017-09-07 09:48:04 +0100 | [diff] [blame] | 71 | void run(const Window &window, const ThreadInfo &info) override; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 72 | BorderSize border_size() const override; |
| 73 | |
| 74 | private: |
| 75 | bool _run_scharr_x; /**< Do we need to run Scharr X ? */ |
| 76 | bool _run_scharr_y; /**< Do we need to run Scharr Y ? */ |
| 77 | const ITensor *_input; /**< Input tensor */ |
| 78 | ITensor *_output_x; /**< Output tensor for scharr X */ |
| 79 | ITensor *_output_y; /**< Output tensor for scharr Y */ |
| 80 | }; |
Gian Marco Iodice | 356f643 | 2017-09-22 11:32:21 +0100 | [diff] [blame] | 81 | } // namespace arm_compute |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 82 | #endif /*__ARM_COMPUTE_NESCHARR3x3KERNEL_H__ */ |