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/*
* 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_CLHISTOGRAMKERNEL_H__
#define __ARM_COMPUTE_CLHISTOGRAMKERNEL_H__
#include "arm_compute/core/CL/ICLKernel.h"
namespace arm_compute
{
class ICLDistribution1D;
class ICLTensor;
using ICLImage = ICLTensor;
/** Interface to run the histogram kernel. This kernel processes the part of image with width can be divided by 16.
* If the image width is not a multiple of 16, remaining pixels have to be processed with the @ref CLHistogramBorderKernel
*/
class CLHistogramKernel : public ICLKernel
{
public:
/** Constructor */
CLHistogramKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLHistogramKernel(const CLHistogramKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLHistogramKernel &operator=(const CLHistogramKernel &) = delete;
/** Allow instances of this class to be moved */
CLHistogramKernel(CLHistogramKernel &&) = default;
/** Allow instances of this class to be moved */
CLHistogramKernel &operator=(CLHistogramKernel &&) = default;
/** Initialise the kernel's input, output and border mode.
*
* @param[in] input Source image. Data types supported: U8.
* @param[out] output Destination distribution.
*/
void configure(const ICLImage *input, ICLDistribution1D *output);
// Inherited methods overridden:
void run(const Window &window, cl::CommandQueue &queue) override;
private:
const ICLImage *_input;
ICLDistribution1D *_output;
};
/** Interface to run the histogram kernel to handle the leftover part of image
*
*/
class CLHistogramBorderKernel : public ICLKernel
{
public:
/** Constructor */
CLHistogramBorderKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLHistogramBorderKernel(const CLHistogramBorderKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLHistogramBorderKernel &operator=(const CLHistogramBorderKernel &) = delete;
/** Allow instances of this class to be moved */
CLHistogramBorderKernel(CLHistogramBorderKernel &&) = default;
/** Allow instances of this class to be moved */
CLHistogramBorderKernel &operator=(CLHistogramBorderKernel &&) = default;
/** Initialise the kernel's input, output and border mode.
*
* @param[in] input Source image. Data types supported: U8.
* @param[out] output Destination distribution.
*/
void configure(const ICLImage *input, ICLDistribution1D *output);
// Inherited methods overridden:
void run(const Window &window, cl::CommandQueue &queue) override;
private:
const ICLImage *_input;
ICLDistribution1D *_output;
};
} // namespace arm_compute
#endif /* __ARM_COMPUTE_CLHISTOGRAMKERNEL_H__*/
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