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/*
* Copyright (c) 2016-2019 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_LUTALLOCATOR_H__
#define __ARM_COMPUTE_LUTALLOCATOR_H__
#include "arm_compute/runtime/ILutAllocator.h"
#include <cstdint>
#include <memory>
namespace arm_compute
{
/** Basic implementation of a CPU memory LUT allocator. */
class LutAllocator : public ILutAllocator
{
public:
/** Default constructor. */
LutAllocator();
/** Interface to be implemented by the child class to return the pointer to the allocate data.
*
* @return a pointer to the data.
*/
uint8_t *data() const;
protected:
/** Allocate num_elements() * sizeof(type()) of CPU memory. */
void allocate() override;
/** No-op for CPU memory
*
* @return A pointer to the beginning of the look up table's allocation.
*/
uint8_t *lock() override;
/** No-op for CPU memory. */
void unlock() override;
private:
mutable std::vector<uint8_t> _buffer; /**< CPU memory allocation. */
};
}
#endif /* __ARM_COMPUTE_LUTALLOCATOR_H__ */
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