src/core/CL/kernels/CLFillBorderKernel.h

/*
 * 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_CLFILLBORDERKERNEL_H
#define ARM_COMPUTE_CLFILLBORDERKERNEL_H

#include "arm_compute/core/PixelValue.h"
#include "arm_compute/core/Types.h"

#include "src/core/CL/ICLKernel.h"

namespace arm_compute
{
class ICLTensor;

/** Interface for filling the border of a kernel */
class CLFillBorderKernel : public ICLKernel
{
public:
    /** Default constructor */
    CLFillBorderKernel();
    /** Prevent instances of this class from being copied (As this class contains pointers) */
    CLFillBorderKernel(const CLFillBorderKernel &) = delete;
    /** Prevent instances of this class from being copied (As this class contains pointers) */
    CLFillBorderKernel &operator=(const CLFillBorderKernel &) = delete;
    /** Allow instances of this class to be moved */
    CLFillBorderKernel(CLFillBorderKernel &&) = default;
    /** Allow instances of this class to be moved */
    CLFillBorderKernel &operator=(CLFillBorderKernel &&) = default;
    /** Default destructor */
    ~CLFillBorderKernel() = default;

    /** Initialise the kernel's input, output and border mode.
     *
     * @param[in]     compile_context       The compile context to be used.
     * @param[in,out] tensor                Tensor to process Data types supported: U8/QASYMM8/S8/QASYMM8_SIGNED/U16/S16/U32/S32/F16/F32.
     * @param[in]     border_size           Size of the border to fill in elements.
     * @param[in]     border_mode           Border mode to use for the convolution.
     * @param[in]     constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT.
     */
    void configure(const CLCompileContext &compile_context,
                   ICLTensor              *tensor,
                   BorderSize              border_size,
                   BorderMode              border_mode,
                   const PixelValue       &constant_border_value = PixelValue());
    /** Initialise the kernel's input, output and border mode.
     *
     * @param[in,out] tensor                Tensor to process Data types supported: U8/QASYMM8/S8/QASYMM8_SIGNED/U16/S16/U32/S32/F16/F32.
     * @param[in]     border_size           Size of the border to fill in elements.
     * @param[in]     border_mode           Border mode to use for the convolution.
     * @param[in]     constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT.
     */
    void configure(ICLTensor        *tensor,
                   BorderSize        border_size,
                   BorderMode        border_mode,
                   const PixelValue &constant_border_value = PixelValue());
    /** Initialise the kernel's input, output and border mode.
     *
     * @param[in]     compile_context       The compile context to be used.
     * @param[in,out] tensor                Tensor to process Data types supported: U8/QASYMM8/S8/QASYMM8_SIGNED/U16/S16/U32/S32/F16/F32.
     * @param[in]     border_size           Size of the border to fill in elements.
     * @param[in]     border_mode           Border mode to use for the convolution.
     * @param[in]     constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT.
     */
    void configure(const CLCompileContext &compile_context,
                   ITensorInfo            *tensor,
                   BorderSize              border_size,
                   BorderMode              border_mode,
                   const PixelValue       &constant_border_value = PixelValue());

    /** Function to set the constant value on fill border kernel depending on type.
     *
     * @param[in] idx                   Index of the kernel argument to set.
     * @param[in] constant_border_value Constant value to use for borders if border_mode is set to CONSTANT.
     */
    template <class T>
    void set_constant_border(unsigned int idx, const PixelValue &constant_border_value);

    // Inherited methods overridden:
    void run_op(ITensorPack &tensors, const Window &window, cl::CommandQueue &queue) override;
    void run(const Window &window, cl::CommandQueue &queue) override;
    bool is_parallelisable() const override;

private:
    ICLTensor *_tensor;
};
} // namespace arm_compute
#endif /*ARM_COMPUTE_CLFILLBORDERKERNEL_H */