Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
Michalis Spyrou | bcfd09a | 2019-05-01 13:03:59 +0100 | [diff] [blame] | 2 | * Copyright (c) 2016-2019 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 | */ |
Michalis Spyrou | f464337 | 2019-11-29 16:17:13 +0000 | [diff] [blame] | 24 | #ifndef ARM_COMPUTE_LUTALLOCATOR_H |
| 25 | #define ARM_COMPUTE_LUTALLOCATOR_H |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 26 | |
| 27 | #include "arm_compute/runtime/ILutAllocator.h" |
| 28 | |
| 29 | #include <cstdint> |
| 30 | #include <memory> |
| 31 | |
| 32 | namespace arm_compute |
| 33 | { |
| 34 | /** Basic implementation of a CPU memory LUT allocator. */ |
| 35 | class LutAllocator : public ILutAllocator |
| 36 | { |
| 37 | public: |
| 38 | /** Default constructor. */ |
| 39 | LutAllocator(); |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 40 | /** Interface to be implemented by the child class to return the pointer to the allocate data. |
| 41 | * |
| 42 | * @return a pointer to the data. |
| 43 | */ |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 44 | uint8_t *data() const; |
| 45 | |
| 46 | protected: |
| 47 | /** Allocate num_elements() * sizeof(type()) of CPU memory. */ |
| 48 | void allocate() override; |
| 49 | /** No-op for CPU memory |
| 50 | * |
| 51 | * @return A pointer to the beginning of the look up table's allocation. |
| 52 | */ |
| 53 | uint8_t *lock() override; |
| 54 | /** No-op for CPU memory. */ |
| 55 | void unlock() override; |
| 56 | |
| 57 | private: |
Michalis Spyrou | bcfd09a | 2019-05-01 13:03:59 +0100 | [diff] [blame] | 58 | mutable std::vector<uint8_t> _buffer; /**< CPU memory allocation. */ |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 59 | }; |
| 60 | } |
Michalis Spyrou | f464337 | 2019-11-29 16:17:13 +0000 | [diff] [blame] | 61 | #endif /* ARM_COMPUTE_LUTALLOCATOR_H */ |