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/*
* Copyright (c) 2016-2020 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_NEHISTOGRAM_H
#define ARM_COMPUTE_NEHISTOGRAM_H
#include "arm_compute/runtime/IFunction.h"
#include <cstddef>
#include <cstdint>
#include <memory>
#include <vector>
namespace arm_compute
{
class ITensor;
class IDistribution1D;
class NEHistogramKernel;
using IImage = ITensor;
/** Basic function to run @ref NEHistogramKernel.
*
* @deprecated This function is deprecated and is intended to be removed in 21.05 release
*
*/
class NEHistogram : public IFunction
{
public:
/** Default Constructor. */
NEHistogram();
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEHistogram(const NEHistogram &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEHistogram &operator=(const NEHistogram &) = delete;
/** Prevent instances of this class from being moved (As this class contains non movable objects) */
NEHistogram(NEHistogram &&) = delete;
/** Prevent instances of this class from being moved (As this class contains non movable objects) */
NEHistogram &operator=(NEHistogram &&) = delete;
/** Default destructor */
~NEHistogram();
/** Initialise the kernel's inputs.
*
* @param[in] input Input image. Data type supported: U8.
* @param[out] output Output distribution.
*/
void configure(const IImage *input, IDistribution1D *output);
// Inherited methods overridden:
void run() override;
private:
std::unique_ptr<NEHistogramKernel> _histogram_kernel;
std::vector<uint32_t> _local_hist;
std::vector<uint32_t> _window_lut;
size_t _local_hist_size;
/** 256 possible pixel values as we handle only U8 images */
static constexpr unsigned int window_lut_default_size = 256;
};
}
#endif /*ARM_COMPUTE_NEHISTOGRAM_H */
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