70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
/*
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* Copyright (c) 2016-2019 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_ILUT_H
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#define ARM_COMPUTE_ILUT_H
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#include "arm_compute/core/Types.h"
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#include <cstddef>
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namespace arm_compute
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{
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/** Lookup Table object interface. */
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class ILut
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{
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public:
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/** Default virtual destructor */
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virtual ~ILut() = default;
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/** Returns the total number of elements in the LUT.
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*
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* @return Total number of elements.
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*/
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virtual size_t num_elements() const = 0;
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/** Indicates the offset that needs to be applied to the raw index before performing a lookup in the LUT.
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*
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* @return The normalization offset.
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*/
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virtual uint32_t index_offset() const = 0;
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/** Returns the total size in bytes of the LUT.
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*
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* @return Total size of the LUT in bytes.
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*/
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virtual size_t size_in_bytes() const = 0;
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/** Returns the type of the LUT.
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*
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* @return The type of the LUT.
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*/
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virtual DataType type() const = 0;
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/** Returns a pointer to the start of the LUT.
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* Other elements of the LUT can be accessed using buffer()[idx] for 0 <= idx < num_elements().
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*
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* @return Pointer to the start of the lut.
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*/
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virtual uint8_t *buffer() const = 0;
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/** Clears the LUT by setting every element to zero. */
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virtual void clear() = 0;
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};
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}
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#endif /* ARM_COMPUTE_ILUT_H */
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