2 * Copyright (c) 2016, 2017 ARM Limited.
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24 #ifndef __ARM_COMPUTE_ILUTALLOCATOR_H__
25 #define __ARM_COMPUTE_ILUTALLOCATOR_H__
27 #include "arm_compute/core/Types.h"
34 /** Basic interface to allocate LUTs' */
38 /** Default constructor */
40 /** Default virtual destructor */
41 virtual ~ILutAllocator() = default;
42 /** Allow instances of this class to be move constructed */
43 ILutAllocator(ILutAllocator &&) = default;
44 /** Allow instances of this class to be moved */
45 ILutAllocator &operator=(ILutAllocator &&) = default;
46 /** Allocate an LUT of the requested number of elements and data_type.
48 * @param[in] num_elements Number of elements of the LUT.
49 * @param[in] data_type Data type of each element.
51 void init(size_t num_elements, DataType data_type);
52 /** Returns the total number of elements in the LUT.
54 * @return Total number of elements.
56 size_t num_elements() const;
57 /** Returns the type of the LUT.
59 * @return The type of the LUT.
61 DataType type() const;
62 /** Returns the total size in bytes of the LUT.
64 * @return Total size of the LUT in bytes.
69 /** Interface to be implemented by the child class to allocate the LUT. */
70 virtual void allocate() = 0;
71 /** Interface to be implemented by the child class to lock the memory allocation for the CPU to access.
73 * @return Pointer to a CPU mapping of the memory
75 virtual uint8_t *lock() = 0;
76 /** Interface to be implemented by the child class to unlock the memory allocation after the CPU is done accessing it. */
77 virtual void unlock() = 0;
80 size_t _num_elements; /**< Number of elements allocated */
81 DataType _data_type; /**< Data type of LUT elements. */
84 #endif /* __ARM_COMPUTE_ILUTALLOCATOR_H__ */