1 /* 2 * Copyright (c) 2017-2019 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_TEST_CL_CLLUTACCESSOR_H 25 #define ARM_COMPUTE_TEST_CL_CLLUTACCESSOR_H 26 27 #include "tests/ILutAccessor.h" 28 29 #include "arm_compute/runtime/CL/CLLut.h" 30 31 namespace arm_compute 32 { 33 namespace test 34 { 35 /** Accessor implementation for @ref CLLut objects. */ 36 template <typename T> 37 class CLLutAccessor : public ILutAccessor<T> 38 { 39 public: 40 /** Create an accessor for the given @p CLLut. 41 */ CLLutAccessor(CLLut & lut)42 CLLutAccessor(CLLut &lut) 43 : _lut{ lut } 44 { 45 _lut.map(true); 46 } 47 /** Default destructor */ ~CLLutAccessor()48 ~CLLutAccessor() 49 { 50 _lut.unmap(); 51 } 52 53 /** Prevent instances of this class from being copy constructed */ 54 CLLutAccessor(const CLLutAccessor &) = delete; 55 /** Prevent instances of this class from being copied */ 56 CLLutAccessor &operator=(const CLLutAccessor &) = delete; 57 /** Allow instances of this class to be move constructed */ 58 CLLutAccessor(CLLutAccessor &&) = default; 59 /** Allow instance of this class to be moved */ 60 CLLutAccessor &operator=(CLLutAccessor &&) = default; 61 num_elements()62 int num_elements() const override 63 { 64 return _lut.num_elements(); 65 } 66 67 const T &operator[](T input_value) const override 68 { 69 auto lut = reinterpret_cast<T *>(_lut.buffer()); 70 int32_t real_index = _lut.index_offset() + static_cast<int32_t>(input_value); 71 72 if(0 <= real_index && real_index < num_elements()) 73 { 74 return lut[real_index]; 75 } 76 ARM_COMPUTE_ERROR("Error index not in range."); 77 } 78 79 T &operator[](T input_value) override 80 { 81 auto lut = reinterpret_cast<T *>(_lut.buffer()); 82 int32_t real_index = _lut.index_offset() + static_cast<int32_t>(input_value); 83 84 if(0 <= real_index && real_index < num_elements()) 85 { 86 return lut[real_index]; 87 } 88 ARM_COMPUTE_ERROR("Error index not in range."); 89 } 90 91 private: 92 CLLut &_lut; 93 }; 94 } // namespace test 95 } // namespace arm_compute 96 #endif /* ARM_COMPUTE_TEST_CL_CLLUTACCESSOR_H */ 97