| /* |
| * Copyright (c) 2016, 2017 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_ILUT_H__ |
| #define __ARM_COMPUTE_ILUT_H__ |
| |
| #include "arm_compute/core/Types.h" |
| |
| #include <cstddef> |
| |
| namespace arm_compute |
| { |
| /** Lookup Table object interface. */ |
| class ILut |
| { |
| public: |
| /** Default virtual destructor */ |
| virtual ~ILut() = default; |
| /** Returns the total number of elements in the LUT. |
| * |
| * @return Total number of elements. |
| */ |
| virtual size_t num_elements() const = 0; |
| /** Indicates the offset that needs to be applied to the raw index before performing a lookup in the LUT. |
| * |
| * @return The normalization offset. |
| */ |
| virtual uint32_t index_offset() const = 0; |
| /** Returns the total size in bytes of the LUT. |
| * |
| * @return Total size of the LUT in bytes. |
| */ |
| virtual size_t size_in_bytes() const = 0; |
| /** Returns the type of the LUT. |
| * |
| * @return The type of the LUT. |
| */ |
| virtual DataType type() const = 0; |
| /** Returns a pointer to the start of the LUT. |
| * Other elements of the LUT can be accessed using buffer()[idx] for 0 <= idx < num_elements(). |
| * |
| * @return Pointer to the start of the lut. |
| */ |
| virtual uint8_t *buffer() const = 0; |
| /** Clears the LUT by setting every element to zero. */ |
| virtual void clear() = 0; |
| }; |
| } |
| #endif /* __ARM_COMPUTE_ILUT_H__ */ |