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24 #ifndef __ARM_COMPUTE_TEST_NEON_LUTACCESSOR_H__
25 #define __ARM_COMPUTE_TEST_NEON_LUTACCESSOR_H__
27 #include "tests/ILutAccessor.h"
29 #include "arm_compute/runtime/Lut.h"
35 /** Accessor implementation for @ref Lut objects. */
37 class LutAccessor : public ILutAccessor<T>
40 /** Create an accessor for the given @p Lut.
47 /** Prevent instances of this class from being copy constructed */
48 LutAccessor(const LutAccessor &) = delete;
49 /** Prevent instances of this class from being copied */
50 LutAccessor &operator=(const LutAccessor &) = delete;
51 /** Allow instances of this class to be move constructed */
52 LutAccessor(LutAccessor &&) = default;
53 /** Allow instances of this class to be moved */
54 LutAccessor &operator=(LutAccessor &&) = default;
56 int num_elements() const override
58 return _lut.num_elements();
61 const T &operator[](T input_value) const override
63 auto lut = reinterpret_cast<T *>(_lut.buffer());
64 int32_t real_index = _lut.index_offset() + static_cast<int32_t>(input_value);
66 if(0 <= real_index && real_index < num_elements())
68 return lut[real_index];
70 ARM_COMPUTE_ERROR("Error index not in range.");
73 T &operator[](T input_value) override
75 auto lut = reinterpret_cast<T *>(_lut.buffer());
76 int32_t real_index = _lut.index_offset() + static_cast<int32_t>(input_value);
78 if(0 <= real_index && real_index < num_elements())
80 return lut[real_index];
82 ARM_COMPUTE_ERROR("Error index not in range.");
89 } // namespace arm_compute
90 #endif /* __ARM_COMPUTE_TEST_NEON_LUTACCESSOR_H__ */