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_NESCALEKERNEL_H__ |
| 25 | #define __ARM_COMPUTE_NESCALEKERNEL_H__ |
| 26 | |
| 27 | #include "arm_compute/core/NEON/INEKernel.h" |
| 28 | #include "arm_compute/core/Types.h" |
| 29 | |
| 30 | namespace arm_compute |
| 31 | { |
| 32 | class ITensor; |
| 33 | |
| 34 | /** NEON kernel to perform scaling on a tensor */ |
| 35 | class NEScaleKernel : public INEKernel |
| 36 | { |
| 37 | public: |
Anthony Barbier | e8a4983 | 2018-01-18 10:04:05 +0000 | [diff] [blame] | 38 | const char *name() const override |
| 39 | { |
| 40 | return "NEScaleKernel"; |
| 41 | } |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 42 | /** Default constructor */ |
| 43 | NEScaleKernel(); |
| 44 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 45 | NEScaleKernel(const NEScaleKernel &) = delete; |
| 46 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 47 | NEScaleKernel &operator=(const NEScaleKernel &) = delete; |
| 48 | /** Allow instances of this class to be moved */ |
| 49 | NEScaleKernel(NEScaleKernel &&) = default; |
| 50 | /** Allow instances of this class to be moved */ |
| 51 | NEScaleKernel &operator=(NEScaleKernel &&) = default; |
| 52 | /** Default destructor */ |
| 53 | ~NEScaleKernel() = default; |
| 54 | |
| 55 | /** Initialise the kernel's inputs, output and interpolation policy |
| 56 | * |
| 57 | * @note dx, dy and offsets have the same dimensions (width and height) of the output tensor |
| 58 | * |
Georgios Pinitas | 393fa4c | 2018-05-08 15:54:53 +0100 | [diff] [blame] | 59 | * @param[in] input Source tensor. Data types supported: U8/S16/F32. |
| 60 | * @param[in] dx Pixel's distance between the X real coordinate and the smallest X following integer. Data type supported: F32 |
| 61 | * @param[in] dy Pixel's distance between the Y real coordinate and the smallest Y following integer. Data type supported: F32 |
| 62 | * @param[in] offsets Offset to access the pixel with NEAREST interpolation or the top-left pixel with BILINEAR interpolation in the input tensor. Data type supported: S32. |
| 63 | * @param[out] output Destination tensor. Data types supported: Same as @p input. All but the lowest two dimensions must be the same size as in the input tensor, i.e. scaling is only performed within the XY-plane. |
| 64 | * @param[in] policy Interpolation type to use |
| 65 | * @param[in] border_mode Border mode policy |
| 66 | * @param[in] sampling_policy (Optional) Sampling policy used by the interpolation. Defaults to @ref SamplingPolicy::CENTER |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 67 | */ |
Georgios Pinitas | 393fa4c | 2018-05-08 15:54:53 +0100 | [diff] [blame] | 68 | void configure(const ITensor *input, const ITensor *dx, const ITensor *dy, const ITensor *offsets, ITensor *output, |
| 69 | InterpolationPolicy policy, BorderMode border_mode, SamplingPolicy sampling_policy = SamplingPolicy::CENTER); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 70 | |
| 71 | // Inherited methods overridden: |
Moritz Pflanzer | c186b57 | 2017-09-07 09:48:04 +0100 | [diff] [blame] | 72 | void run(const Window &window, const ThreadInfo &info) override; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 73 | BorderSize border_size() const override; |
| 74 | |
| 75 | private: |
| 76 | /** function to perform scale using nearest interpolation on the given window */ |
Georgios Pinitas | 393fa4c | 2018-05-08 15:54:53 +0100 | [diff] [blame] | 77 | void scale_nearest_nchw(const Window &window); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 78 | /** function to perform scale using bilinear interpolation on the given window */ |
Georgios Pinitas | 393fa4c | 2018-05-08 15:54:53 +0100 | [diff] [blame] | 79 | void scale_bilinear_nchw(const Window &window); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 80 | /** function to perform scale using area interpolation on the given window |
| 81 | * |
| 82 | * @note Used only in case down-sampling. |
| 83 | */ |
Georgios Pinitas | 393fa4c | 2018-05-08 15:54:53 +0100 | [diff] [blame] | 84 | void scale_area_nchw(const Window &window); |
| 85 | /** function to perform scale on the given window */ |
| 86 | void scale_nhwc(const Window &window); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 87 | /** Scale function to use for the particular interpolation type passed to configure() */ |
| 88 | void (NEScaleKernel::*_func)(const Window &window); |
| 89 | |
Georgios Pinitas | 393fa4c | 2018-05-08 15:54:53 +0100 | [diff] [blame] | 90 | const ITensor *_offsets; |
| 91 | const ITensor *_dx; |
| 92 | const ITensor *_dy; |
| 93 | const ITensor *_input; |
| 94 | ITensor *_output; |
| 95 | InterpolationPolicy _policy; |
| 96 | BorderSize _border_size; |
| 97 | BorderMode _border_mode; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 98 | }; |
Gian Marco Iodice | 356f643 | 2017-09-22 11:32:21 +0100 | [diff] [blame] | 99 | } // namespace arm_compute |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 100 | #endif /*__ARM_COMPUTE_NESCALEKERNEL_H__ */ |