1 /* 2 * Copyright (c) 2016-2019 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_LUT_H 25 #define ARM_COMPUTE_LUT_H 26 27 #include "arm_compute/core/ILut.h" 28 #include "arm_compute/core/Types.h" 29 #include "arm_compute/runtime/LutAllocator.h" 30 31 #include <cstddef> 32 #include <cstdint> 33 34 namespace arm_compute 35 { 36 class ILutAllocator; 37 38 /** Basic implementation of the LUT interface */ 39 class Lut : public ILut 40 { 41 public: 42 /** Constructor */ 43 Lut(); 44 /** Constructor: initializes a LUT which can contain num_values values of data_type type. 45 * 46 * @param[in] num_elements Number of elements of the LUT. 47 * @param[in] data_type Data type of each element. 48 */ 49 Lut(size_t num_elements, DataType data_type); 50 /** Return a pointer to the lut's allocator 51 * 52 * @return A pointer to the lut's allocator 53 */ 54 ILutAllocator *allocator(); 55 56 // Inherited methods overridden: 57 size_t num_elements() const override; 58 uint32_t index_offset() const override; 59 size_t size_in_bytes() const override; 60 DataType type() const override; 61 uint8_t *buffer() const override; 62 void clear() override; 63 64 private: 65 LutAllocator _allocator; /**< Instance of the basic CPU allocator.*/ 66 }; 67 } 68 #endif /* ARM_COMPUTE_LUT_H */ 69