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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
* Copyright (c) 2016-2018 ARM Limited.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __ARM_COMPUTE_CLARITHMETICSUBTRACTIONEXKERNEL_H__
#define __ARM_COMPUTE_CLARITHMETICSUBTRACTIONEXKERNEL_H__
#include "arm_compute/core/CL/ICLKernel.h"
namespace arm_compute
{
class ICLTensor;
/** Interface for the arithmetic subtraction kernel (support broadcasting)
*
* Arithmetic subtraction is computed by:
* @f[ output(x,y) = input1(x,y) - input2(x,y) @f]
*/
class CLArithmeticSubtractionExKernel : public ICLKernel
{
public:
/** Default constructor */
CLArithmeticSubtractionExKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLArithmeticSubtractionExKernel(const CLArithmeticSubtractionExKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLArithmeticSubtractionExKernel &operator=(const CLArithmeticSubtractionExKernel &) = delete;
/** Allow instances of this class to be moved */
CLArithmeticSubtractionExKernel(CLArithmeticSubtractionExKernel &&) = default;
/** Allow instances of this class to be moved */
CLArithmeticSubtractionExKernel &operator=(CLArithmeticSubtractionExKernel &&) = default;
/** Default destructor */
~CLArithmeticSubtractionExKernel() = default;
/** Initialise the kernel's inputs, output and convertion policy.
*
* @param[in] input1 First tensor input. Data types supported: U8/S16/F16/F32.
* @param[in] input2 Second tensor input. Data types supported: U8/S16/F16/F32.
* @param[out] output Output tensor. Data types supported: U8 (Only if both inputs are U8),
* S16/F16/F32.
* @param[in] policy Policy to use to handle overflow.
*/
void configure(const ICLTensor *input1, const ICLTensor *input2, ICLTensor *output,
ConvertPolicy policy);
/** Static function to check if given info will lead to a valid configuration of @ref
* CLArithmeticSubtractionExKernel
*
* @param[in] input1 First tensor input info. Data types supported: U8/S16/F16/F32.
* @param[in] input2 Second tensor input info. Data types supported: U8/S16/F16/F32.
* @param[in] output Output tensor info. Data types supported: U8 (Only if both inputs are U8),
* S16/F16/F32.
* @param[in] policy Policy to use to handle overflow.
*
* @return a status
*/
static Status validate(const ITensorInfo *input1, const ITensorInfo *input2,
const ITensorInfo *output, ConvertPolicy policy);
// Inherited methods overridden:
void run(const Window &window, cl::CommandQueue &queue) override;
BorderSize border_size() const override;
private:
const ICLTensor *_input1; /**< Source tensor 1 */
const ICLTensor *_input2; /**< Source tensor 2 */
ICLTensor *_output; /**< Destination tensor */
};
} // namespace arm_compute
#endif /* __ARM_COMPUTE_CLARITHMETICSUBTRACTIONEXKERNEL_H__ */
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