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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.
*/
/**
* @file CLPixelWiseDivisionKernel.h
* @ingroup COM_AI_RUNTIME
* @brief This file defines CLPixelWiseDivisionKernel class
*/
#ifndef __ARM_COMPUTE_CLPIXELWISEDIVISIONKERNEL_H__
#define __ARM_COMPUTE_CLPIXELWISEDIVISIONKERNEL_H__
#include "arm_compute/core/CL/ICLKernel.h"
namespace arm_compute
{
class ICLTensor;
/**
* @brief Interface for the pixelwise division kernel.
*/
class CLPixelWiseDivisionKernel : public ICLKernel
{
public:
/**
* @brief Construct a CLPixelWiseDivisionKernel object
*/
CLPixelWiseDivisionKernel();
/**
* @brief Prevent instances of this class from being copied (As this class contains pointers).
*/
CLPixelWiseDivisionKernel(const CLPixelWiseDivisionKernel &) = delete;
/**
* @brief Prevent instances of this class from being copied (As this class contains pointers).
*/
CLPixelWiseDivisionKernel &operator=(const CLPixelWiseDivisionKernel &) = delete;
/**
* @brief Construct a CLPixelWiseDivisionKernel object by using move constructor
* @param[in] CLPixelWiseDivisionKernel object to move
*/
CLPixelWiseDivisionKernel(CLPixelWiseDivisionKernel &&) = default;
/**
* @brief Allow instances of this class to be moved
* @param[in] CLPixelWiseDivisionKernel object to move
*/
CLPixelWiseDivisionKernel &operator=(CLPixelWiseDivisionKernel &&) = default;
/**
* @brief Initialise the kernel's input, output and border mode.
* @param[in] input1 An input tensor. Data types supported: U8/S16/F16/F32.
* @param[in] input2 An input tensor. Data types supported: same as @p input1.
* @param[out] output The output tensor, Data types supported: same as @p input1. Note:
* U8 requires both inputs to be U8.
* @param[in] scale Scale to apply after division.
* Scale must be positive and its value must be either 1/255 or 1/2^n
* where n is between 0 and 15.
* @param[in] overflow_policy Overflow policy. Supported overflow policies: Wrap, Saturate
* @param[in] rounding_policy Rounding policy. Supported rounding modes: to zero, to nearest
* even.
* @return N/A
*/
void configure(const ICLTensor *input1, const ICLTensor *input2, ICLTensor *output, float scale,
ConvertPolicy overflow_policy, RoundingPolicy rounding_policy);
/**
* @brief Static function to check if given info will lead to a valid configuration of @ref
* CLPixelWiseDivisionKernel
* @param[in] input1 An input tensor info. Data types supported: U8/S16/F16/F32.
* @param[in] input2 An input tensor info. Data types supported: same as @p input1.
* @param[in] output The output tensor info, Data types supported: same as @p input1.
* Note: U8 requires both inputs to be U8.
* @param[in] scale Scale to apply after division.
* Scale must be positive and its value must be either 1/255 or 1/2^n
* where n is between 0 and 15.
* @param[in] overflow_policy Overflow policy. Supported overflow policies: Wrap, Saturate
* @param[in] rounding_policy Rounding policy. Supported rounding modes: to zero, to nearest even.
* @return a status
*/
static Status validate(const ITensorInfo *input1, const ITensorInfo *input2,
const ITensorInfo *output, float scale, ConvertPolicy overflow_policy,
RoundingPolicy rounding_policy);
/**
* @brief Enqueue the OpenCL kernel to process the given window on the passed OpenCL command
* queue.
* @note The queue is *not* flushed by this method, and therefore the kernel will not have
* been executed by the time this method returns.
* @param[in] window Region on which to execute the kernel. (Must be a valid region of
* the window returned by window()).
* @param[in,out] queue Command queue on which to enqueue the kernel.@return N/A
* @return N/A
*/
void run(const Window &window, cl::CommandQueue &queue) override;
/**
* @brief The size of the border for that kernel
* @return The width in number of elements of the border.
*/
BorderSize border_size() const override;
private:
const ICLTensor *_input1;
const ICLTensor *_input2;
ICLTensor *_output;
};
} // namespace arm_compute
#endif /*__ARM_COMPUTE_CLPIXELWISEDIVISIONKERNEL_H__ */
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