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/*
* Copyright (c) 2016-2019 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_NEWARPKERNEL_H
#define ARM_COMPUTE_NEWARPKERNEL_H
#include "arm_compute/core/NEON/INEKernel.h"
#include "arm_compute/core/Types.h"
#include <array>
#include <cstdint>
namespace arm_compute
{
class ITensor;
/** Common interface for warp affine and warp perspective */
class INEWarpKernel : public INEKernel
{
public:
/** Default constructor */
INEWarpKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
INEWarpKernel(const INEWarpKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
INEWarpKernel &operator=(const INEWarpKernel &) = delete;
/** Allow instances of this class to be moved */
INEWarpKernel(INEWarpKernel &&) = default;
/** Allow instances of this class to be moved */
INEWarpKernel &operator=(INEWarpKernel &&) = default;
/** Initialise the kernel's input, output and border mode.
*
* @param[in] input Source tensor. Data type supported: U8.
* @param[out] output Destination tensor. Data type supported: U8.
* @param[in] matrix The perspective or affine matrix to use. Must be 2x3 for affine and 3x3 for perspective of type float.
* The matrix argument requires 9 values, for the affine case the last 3 values are ignored.
* @param[in] border_mode Strategy to use for borders
* @param[in] constant_border_value Constant value used for filling the border.
*/
virtual void configure(const ITensor *input, ITensor *output, const std::array<float, 9> &matrix, BorderMode border_mode, uint8_t constant_border_value);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
// Inherited methods overridden:
BorderSize border_size() const override;
protected:
/** function to perform warp affine or warp perspective on the given window when border mode == UNDEFINED
*
* @param[in] window Region on which to execute the kernel
*/
virtual void warp_undefined(const Window &window) = 0;
/** function to perform warp affine or warp perspective on the given window when border mode == CONSTANT
*
* @param[in] window Region on which to execute the kernel
*/
virtual void warp_constant(const Window &window) = 0;
/** function to perform warp affine or warp perspective on the given window when border mode == REPLICATE
*
* @param[in] window Region on which to execute the kernel
*/
virtual void warp_replicate(const Window &window) = 0;
/** Common signature for all the specialised warp functions
*
* @param[in] window Region on which to execute the kernel.
*/
void (INEWarpKernel::*_func)(const Window &window);
const ITensor *_input; /**< Input Tensor */
ITensor *_output; /**< Output Tensor */
uint8_t _constant_border_value; /**< Constant value used for filling the border. This value is used for those pixels out of the ROI when the border mode is CONSTANT */
std::array<float, 9> _matrix; /**< The affine or perspective matrix. Must be 2x3 for warp affine or 3x3 for warp perspective of type float. */
};
/** Template interface for the kernel to compute warp affine
*
*/
template <InterpolationPolicy interpolation>
class NEWarpAffineKernel : public INEWarpKernel
{
private:
const char *name() const override
{
return "NEWarpAffineKernel";
}
// Inherited methods overridden:
void warp_undefined(const Window &window) override;
void warp_constant(const Window &window) override;
void warp_replicate(const Window &window) override;
};
/** Template interface for the kernel to compute warp perspective
*
*/
template <InterpolationPolicy interpolation>
class NEWarpPerspectiveKernel : public INEWarpKernel
{
private:
const char *name() const override
{
return "NEWarpPerspectiveKernel";
}
// Inherited methods overridden:
void warp_undefined(const Window &window) override;
void warp_constant(const Window &window) override;
void warp_replicate(const Window &window) override;
};
} // namespace arm_compute
#endif /*ARM_COMPUTE_NEWARPKERNEL_H */
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