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_NETABLELOOKUPKERNEL_H__ |
| 25 | #define __ARM_COMPUTE_NETABLELOOKUPKERNEL_H__ |
| 26 | |
| 27 | #include "arm_compute/core/NEON/INESimpleKernel.h" |
| 28 | |
| 29 | namespace arm_compute |
| 30 | { |
| 31 | class ITensor; |
| 32 | class ILut; |
| 33 | |
| 34 | /** Interface for the kernel to perform table lookup calculations. */ |
| 35 | class NETableLookupKernel : public INESimpleKernel |
| 36 | { |
| 37 | public: |
| 38 | /** Default constructor */ |
| 39 | NETableLookupKernel(); |
| 40 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 41 | NETableLookupKernel(const NETableLookupKernel &) = delete; |
| 42 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 43 | NETableLookupKernel &operator=(const NETableLookupKernel &) = delete; |
| 44 | /** Allow instances of this class to be moved */ |
| 45 | NETableLookupKernel(NETableLookupKernel &&) = default; |
| 46 | /** Allow instances of this class to be moved */ |
| 47 | NETableLookupKernel &operator=(NETableLookupKernel &&) = default; |
| 48 | /** Initialise the kernel's input, lut and output. |
| 49 | * |
| 50 | * @param[in] input An input tensor. Data types supported: U8/S16. |
| 51 | * @param[in] lut The input LUT. |
| 52 | * @param[out] output The output tensor. Data types supported: same as @p input |
| 53 | */ |
| 54 | void configure(const ITensor *input, const ILut *lut, ITensor *output); |
| 55 | |
| 56 | // Inherited methods overridden: |
Moritz Pflanzer | c186b57 | 2017-09-07 09:48:04 +0100 | [diff] [blame^] | 57 | void run(const Window &window, const ThreadInfo &info) override; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 58 | |
| 59 | private: |
| 60 | /** Perform table lookup on a given window. |
| 61 | * |
| 62 | * @param window window Region on which to execute the kernel. |
| 63 | */ |
| 64 | template <class T> |
| 65 | void tableLookup(const Window &window); |
| 66 | /** Common signature for all the specialised lut functions |
| 67 | * |
| 68 | * @param[in] window Region on which to execute the kernel. |
| 69 | */ |
| 70 | using TableLookupFunction = void (NETableLookupKernel::*)(const Window &window); |
| 71 | /** Sub function to use for the particular tensor types passed to configure() */ |
| 72 | TableLookupFunction _func; |
| 73 | const ILut *_lut; |
| 74 | }; |
| 75 | } |
| 76 | #endif /* __ARM_COMPUTE_NETABLELOOKUPKERNEL_H__ */ |