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/*
* Copyright (c) 2018-2019 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_NEPRIORBOXLAYERKERNEL_H
#define ARM_COMPUTE_NEPRIORBOXLAYERKERNEL_H
#include "arm_compute/core/NEON/INEKernel.h"
namespace arm_compute
{
class ITensor;
/** Interface for the kernel to calculate prior boxes */
class NEPriorBoxLayerKernel : public INEKernel
{
public:
const char *name() const override
{
return "NEPriorBoxLayerKernel";
}
/** Default constructor */
NEPriorBoxLayerKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEPriorBoxLayerKernel(const NEPriorBoxLayerKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEPriorBoxLayerKernel &operator=(const NEPriorBoxLayerKernel &) = delete;
/** Allow instances of this class to be moved */
NEPriorBoxLayerKernel(NEPriorBoxLayerKernel &&) = default;
/** Allow instances of this class to be moved */
NEPriorBoxLayerKernel &operator=(NEPriorBoxLayerKernel &&) = default;
/** Set the input and output tensors.
*
* @param[in] input1 First source tensor. Data types supported: F32. Data layouts supported: NCHW/NHWC.
* @param[in] input2 Second source tensor. Data types and layouts supported: same as @p input1
* @param[out] output Destination tensor. Output dimensions are [W * H * num_priors * 4, 2]. Data type supported: same as @p input
* @param[in] info Prior box layer info.
*/
void configure(const ITensor *input1, const ITensor *input2, ITensor *output, const PriorBoxLayerInfo &info);
/** Static function to check if given info will lead to a valid configuration of @ref NEPriorBoxLayerKernel
*
* @param[in] input1 First source tensor info. Data types supported: F32. Data layouts supported: NCHW/NHWC.
* @param[in] input2 Second source tensor info. Data types and layouts supported: same as @p input1
* @param[in] output Destination tensor info. Output dimensions are [W * H * num_priors * 4, 2]. Data type supported: same as @p input
* @param[in] info Prior box layer info.
*
* @return a status
*/
static Status validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output, const PriorBoxLayerInfo &info);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
private:
/** Stores the coordinates of the calculated prior boxes.
*
* @param[out] out Output pointer.
* @param[in] offset Output offset to write to.
* @param[in] center_x Center pixel value on x-axis.
* @param[in] center_y Center pixel value on y-axis.
* @param[in] box_width Prior box width.
* @param[in] box_height Prior box height.
* @param[in] width Input width.
* @param[in] height Input height.
*/
void store_coordinates(float *out, const int offset, const float center_x, const float center_y, const float box_width, const float box_height, const int width, const int height);
/** Function to calculate prior boxes.
*
* @param[in] window Input region on which to execute the kernel.
*/
void calculate_prior_boxes(const Window &window);
const ITensor *_input1;
const ITensor *_input2;
ITensor *_output;
PriorBoxLayerInfo _info;
};
} // namespace arm_compute
#endif /* ARM_COMPUTE_NEPRIORBOXLAYERKERNEL_H */
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