| /* |
| * Copyright (c) 2016, 2017 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_NEGAUSSIANPYRAMID_H__ |
| #define __ARM_COMPUTE_NEGAUSSIANPYRAMID_H__ |
| |
| #include "arm_compute/core/IPyramid.h" |
| #include "arm_compute/core/NEON/kernels/NEGaussianPyramidKernel.h" |
| #include "arm_compute/core/NEON/kernels/NEScaleKernel.h" |
| #include "arm_compute/core/Types.h" |
| #include "arm_compute/runtime/IFunction.h" |
| #include "arm_compute/runtime/NEON/functions/NEGaussian5x5.h" |
| #include "arm_compute/runtime/Pyramid.h" |
| #include "arm_compute/runtime/Tensor.h" |
| |
| #include <cstdint> |
| #include <memory> |
| |
| namespace arm_compute |
| { |
| class ITensor; |
| |
| /** Common interface for all Gaussian pyramid functions */ |
| class NEGaussianPyramid : public IFunction |
| { |
| public: |
| /** Default constructor */ |
| NEGaussianPyramid(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEGaussianPyramid(const NEGaussianPyramid &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEGaussianPyramid &operator=(const NEGaussianPyramid &) = delete; |
| /** Allow instances of this class to be moved */ |
| NEGaussianPyramid(NEGaussianPyramid &&) = default; |
| /** Allow instances of this class to be moved */ |
| NEGaussianPyramid &operator=(NEGaussianPyramid &&) = default; |
| /** Default destructor */ |
| virtual ~NEGaussianPyramid() = default; |
| |
| /** Initialise the function's source, destinations and border mode. |
| * |
| * @param[in] input Source tensor. Data type supported: U8. |
| * @param[out] pyramid Destination pyramid tensors, Data type supported at each level: U8. |
| * @param[in] border_mode Border mode to use. |
| * @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT. |
| * |
| */ |
| virtual void configure(const ITensor *input, IPyramid *pyramid, BorderMode border_mode, uint8_t constant_border_value) = 0; |
| |
| protected: |
| const ITensor *_input; |
| IPyramid *_pyramid; |
| Pyramid _tmp; |
| }; |
| |
| /** Basic function to execute gaussian pyramid with HALF scale factor. This function calls the following NEON kernels: |
| * |
| * -# @ref NEFillBorderKernel (executed if border_mode == CONSTANT or border_mode == REPLICATE) |
| * -# @ref NEGaussianPyramidHorKernel |
| * -# @ref NEGaussianPyramidVertKernel |
| * |
| */ |
| class NEGaussianPyramidHalf : public NEGaussianPyramid |
| { |
| public: |
| /** Constructor */ |
| NEGaussianPyramidHalf(); |
| |
| // Inherited methods overridden: |
| void configure(const ITensor *input, IPyramid *pyramid, BorderMode border_mode, uint8_t constant_border_value) override; |
| void run() override; |
| |
| private: |
| std::unique_ptr<NEFillBorderKernel[]> _border_handler; |
| std::unique_ptr<NEGaussianPyramidHorKernel[]> _horizontal_reduction; |
| std::unique_ptr<NEGaussianPyramidVertKernel[]> _vertical_reduction; |
| }; |
| |
| /** Basic function to execute gaussian pyramid with ORB scale factor. This function calls the following NEON kernels and functions: |
| * |
| * -# @ref NEFillBorderKernel (executed if border_mode == CONSTANT or border_mode == REPLICATE) |
| * -# @ref NEGaussian5x5 |
| * -# @ref NEScaleKernel |
| * |
| */ |
| class NEGaussianPyramidOrb : public NEGaussianPyramid |
| { |
| public: |
| /** Constructor */ |
| NEGaussianPyramidOrb(); |
| |
| // Inherited methods overridden: |
| void configure(const ITensor *input, IPyramid *pyramid, BorderMode border_mode, uint8_t constant_border_value) override; |
| void run() override; |
| |
| private: |
| std::unique_ptr<Image[]> _offsets; |
| std::unique_ptr<NEGaussian5x5[]> _gaus5x5; |
| std::unique_ptr<NEScaleKernel[]> _scale_nearest; |
| }; |
| } |
| #endif /*__ARM_COMPUTE_NEGAUSSIANPYRAMID_H__ */ |