| /* |
| * Copyright (c) 2016-2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_NETABLELOOKUPKERNEL_H__ |
| #define __ARM_COMPUTE_NETABLELOOKUPKERNEL_H__ |
| |
| #include "arm_compute/core/NEON/INESimpleKernel.h" |
| |
| namespace arm_compute |
| { |
| class ITensor; |
| class ILut; |
| |
| /** Interface for the kernel to perform table lookup calculations. */ |
| class NETableLookupKernel : public INESimpleKernel |
| { |
| public: |
| const char *name() const override |
| { |
| return "NETableLookupKernel"; |
| } |
| /** Default constructor */ |
| NETableLookupKernel(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NETableLookupKernel(const NETableLookupKernel &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NETableLookupKernel &operator=(const NETableLookupKernel &) = delete; |
| /** Allow instances of this class to be moved */ |
| NETableLookupKernel(NETableLookupKernel &&) = default; |
| /** Allow instances of this class to be moved */ |
| NETableLookupKernel &operator=(NETableLookupKernel &&) = default; |
| /** Initialise the kernel's input, lut and output. |
| * |
| * @param[in] input An input tensor. Data types supported: U8/S16. |
| * @param[in] lut The input LUT. |
| * @param[out] output The output tensor. Data types supported: same as @p input |
| */ |
| void configure(const ITensor *input, const ILut *lut, ITensor *output); |
| |
| // Inherited methods overridden: |
| void run(const Window &window, const ThreadInfo &info) override; |
| |
| private: |
| /** Perform table lookup on a given window. |
| * |
| * @param window window Region on which to execute the kernel. |
| */ |
| template <class T> |
| void tableLookup(const Window &window); |
| /** Common signature for all the specialised lut functions |
| * |
| * @param[in] window Region on which to execute the kernel. |
| */ |
| using TableLookupFunction = void (NETableLookupKernel::*)(const Window &window); |
| /** Sub function to use for the particular tensor types passed to configure() */ |
| TableLookupFunction _func; |
| const ILut *_lut; |
| }; |
| } // namespace arm_compute |
| #endif /* __ARM_COMPUTE_NETABLELOOKUPKERNEL_H__ */ |