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/*
* Copyright (c) 2017-2019 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_CLHOGGRADIENT_H__
#define __ARM_COMPUTE_CLHOGGRADIENT_H__
#include "arm_compute/core/CL/ICLKernel.h"
#include "arm_compute/core/CL/kernels/CLMagnitudePhaseKernel.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/runtime/CL/CLTensor.h"
#include "arm_compute/runtime/CL/functions/CLDerivative.h"
#include "arm_compute/runtime/IFunction.h"
#include "arm_compute/runtime/IMemoryManager.h"
#include "arm_compute/runtime/MemoryGroup.h"
#include <cstdint>
#include <memory>
namespace arm_compute
{
/** Basic function to calculate the gradient for HOG. This function calls the following OpenCL kernels:
*
* -# @ref CLDerivative
* -# @ref CLMagnitudePhaseKernel
*
*/
class CLHOGGradient : public IFunction
{
public:
/** Default constructor */
CLHOGGradient(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
/** Initialise the function's source, destinations, phase type and border mode
*
* @param[in, out] input Input tensor. Data type supported: U8.
* (Written to only for @p border_mode != UNDEFINED)
* @param[out] output_magnitude Output tensor (magnitude). Data type supported: U16.
* @param[out] output_phase Output tensor.(phase). Format supported: U8
* @param[in] phase_type Type of @ref PhaseType
* @param[in] border_mode Border mode to use
* @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT.
*/
void configure(ICLTensor *input, ICLTensor *output_magnitude, ICLTensor *output_phase, PhaseType phase_type, BorderMode border_mode, uint8_t constant_border_value = 0);
// Inherited method overridden:
void run() override;
private:
MemoryGroup _memory_group;
CLDerivative _derivative;
CLMagnitudePhaseKernel _mag_phase;
CLTensor _gx;
CLTensor _gy;
};
}
#endif /*__ARM_COMPUTE_CLHOGGRADIENT_H__ */
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