src/core/gpu/cl/kernels/ClCropKernel.h

/*
 * Copyright (c) 2019-2021 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_CLCROPKERNEL_H
#define ARM_COMPUTE_CLCROPKERNEL_H

#include "src/core/common/Macros.h"
#include "src/core/gpu/cl/ClCompileContext.h"
#include "src/core/gpu/cl/IClKernel.h"

namespace arm_compute
{
namespace opencl
{
namespace kernels
{
/** OpenCL kernel to perform a copy between two tensors */
class ClCropKernel : public IClKernel
{
public:
    ClCropKernel() = default;
    ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(ClCropKernel);
    /** Configure kernel
     *
     * @note Supported tensor rank: up to 4
     *
     * @param[in]  src                 Source tensor info. Data type supported: All. Data layouts supported: NHWC.
     * @param[out] dst                 Destination tensor info. Data type supported: F32
     * @param[in]  start               Coordinates of where to start cropping the image.
     * @param[in]  end                 Coordinates of where to end cropping the image.
     * @param[in]  batch_index         Fourth dimension index of the 3D image to crop in @p src.
     * @param[in]  extrapolation_value Value to be used for values outside of the image. Default is 0.
     * @param[in]  dst_window          Output window to be used in case cropped image is being copied into a tensor. Default is nullptr.
     */
    void configure(const ITensorInfo *src, ITensorInfo *dst, Coordinates2D start, Coordinates2D end, uint32_t batch_index, float extrapolation_value = 0, Window *dst_window = nullptr);
    /** Configure kernel
     *
     * @note Supported tensor rank: up to 4
     *
     * @param[in]  compile_context     The compile context to be used.
     * @param[in]  src                 Source tensor info. Data type supported: All. Data layouts supported: NHWC.
     * @param[out] dst                 Destination tensor info. Data type supported: F32
     * @param[in]  start               Coordinates of where to start cropping the image.
     * @param[in]  end                 Coordinates of where to end cropping the image.
     * @param[in]  batch_index         Fourth dimension index of the 3D image to crop in @p src.
     * @param[in]  extrapolation_value Value to be used for values outside of the image. Default is 0.
     * @param[in]  dst_window          Output window to be used in case cropped image is being copied into a tensor. Default is nullptr.
     */
    void configure(const CLCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst, Coordinates2D start, Coordinates2D end, uint32_t batch_index, float extrapolation_value = 0,
                   Window *dst_window = nullptr);

    /** Static function to check if given info will lead to a valid configuration of @ref CLStridedSliceKernel
     *
     * @note Supported tensor rank: up to 4
     *
     * @param[in] src                 Source tensor info. Data type supported: All. Data layouts supported: NHWC.
     * @param[in] dst                 Destination tensor info. Data type supported: F32
     * @param[in] start               Coordinates of where to start cropping the image.
     * @param[in] end                 Coordinates of where to end cropping the image.
     * @param[in] batch_index         Fourth dimension index of the 3D image to crop in @p src.
     * @param[in] extrapolation_value Value to be used for values outside of the image. Default is 0.
     * @param[in] dst_window          Output window to be used in case cropped image is being copied into a tensor. Default is nullptr.
     */
    static Status validate(const ITensorInfo *src, const ITensorInfo *dst, Coordinates2D start, Coordinates2D end, uint32_t batch_index, float extrapolation_value = 0,
                           Window *dst_window = nullptr);

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

private:
    Coordinates2D _start{};
    uint32_t      _batch_index{};
    float         _extrapolation_value{};
};
} // namespace kernels
} // namespace opencl
} // namespace arm_compute
#endif /*ARM_COMPUTE_CLCROPKERNEL_H */