| /* |
| * Copyright (c) 2016-2018 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_NEMINMAXLOCATIONKERNEL_H__ |
| #define __ARM_COMPUTE_NEMINMAXLOCATIONKERNEL_H__ |
| |
| #include "arm_compute/core/IArray.h" |
| #include "arm_compute/core/NEON/INEKernel.h" |
| #include "support/Mutex.h" |
| |
| #include <cstdint> |
| |
| namespace arm_compute |
| { |
| class ITensor; |
| using IImage = ITensor; |
| |
| /** Interface for the kernel to perform min max search on an image. */ |
| class NEMinMaxKernel : public INEKernel |
| { |
| public: |
| const char *name() const override |
| { |
| return "NEMinMaxKernel"; |
| } |
| /** Default constructor */ |
| NEMinMaxKernel(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEMinMaxKernel(const NEMinMaxKernel &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEMinMaxKernel &operator=(const NEMinMaxKernel &) = delete; |
| /** Allow instances of this class to be moved */ |
| NEMinMaxKernel(NEMinMaxKernel &&) = default; |
| /** Allow instances of this class to be moved */ |
| NEMinMaxKernel &operator=(NEMinMaxKernel &&) = default; |
| /** Default destructor */ |
| ~NEMinMaxKernel() = default; |
| |
| /** Initialise the kernel's input and outputs. |
| * |
| * @param[in] input Input Image. Data types supported: U8/S16/F32. |
| * @param[out] min Minimum value of image. Data types supported: S32 if input type is U8/S16, F32 if input type is F32. |
| * @param[out] max Maximum value of image. Data types supported: S32 if input type is U8/S16, F32 if input type is F32. |
| */ |
| void configure(const IImage *input, void *min, void *max); |
| /** Resets global minimum and maximum. */ |
| void reset(); |
| |
| // Inherited methods overridden: |
| void run(const Window &window, const ThreadInfo &info) override; |
| |
| private: |
| /** Performs the min/max algorithm on U8 images on a given window. |
| * |
| * @param win The window to run the algorithm on. |
| */ |
| void minmax_U8(Window win); |
| /** Performs the min/max algorithm on S16 images on a given window. |
| * |
| * @param win The window to run the algorithm on. |
| */ |
| void minmax_S16(Window win); |
| /** Performs the min/max algorithm on F32 images on a given window. |
| * |
| * @param win The window to run the algorithm on. |
| */ |
| void minmax_F32(Window win); |
| /** Common signature for all the specialised MinMax functions |
| * |
| * @param[in] window Region on which to execute the kernel. |
| */ |
| using MinMaxFunction = void (NEMinMaxKernel::*)(Window window); |
| /** MinMax function to use for the particular image types passed to configure() */ |
| MinMaxFunction _func; |
| /** Helper to update min/max values **/ |
| template <typename T> |
| void update_min_max(T min, T max); |
| |
| const IImage *_input; /**< Input image. */ |
| void *_min; /**< Minimum value. */ |
| void *_max; /**< Maximum value. */ |
| arm_compute::Mutex _mtx; /**< Mutex used for result reduction. */ |
| }; |
| |
| /** Interface for the kernel to find min max locations of an image. */ |
| class NEMinMaxLocationKernel : public INEKernel |
| { |
| public: |
| const char *name() const override |
| { |
| return "NEMinMaxLocationKernel"; |
| } |
| /** Default constructor */ |
| NEMinMaxLocationKernel(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEMinMaxLocationKernel(const NEMinMaxLocationKernel &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEMinMaxLocationKernel &operator=(const NEMinMaxLocationKernel &) = delete; |
| /** Allow instances of this class to be moved */ |
| NEMinMaxLocationKernel(NEMinMaxLocationKernel &&) = default; |
| /** Allow instances of this class to be moved */ |
| NEMinMaxLocationKernel &operator=(NEMinMaxLocationKernel &&) = default; |
| /** Default destructor */ |
| ~NEMinMaxLocationKernel() = default; |
| |
| /** Initialise the kernel's input and outputs. |
| * |
| * @param[in] input Input Image. Data types supported: U8/S16/F32. |
| * @param[out] min Minimum value of image. Data types supported: S32 if input type is U8/S16, F32 if input type is F32. |
| * @param[out] max Maximum value of image. Data types supported: S32 if input type is U8/S16, F32 if input type is F32. |
| * @param[out] min_loc Array of minimum value locations. |
| * @param[out] max_loc Array of maximum value locations. |
| * @param[out] min_count Number of minimum value encounters. |
| * @param[out] max_count Number of maximum value encounters. |
| */ |
| void configure(const IImage *input, void *min, void *max, |
| ICoordinates2DArray *min_loc = nullptr, ICoordinates2DArray *max_loc = nullptr, |
| uint32_t *min_count = nullptr, uint32_t *max_count = nullptr); |
| |
| // Inherited methods overridden: |
| void run(const Window &window, const ThreadInfo &info) override; |
| bool is_parallelisable() const override; |
| |
| private: |
| /** Performs the min/max location algorithm on T type images on a given window. |
| * |
| * @param win The window to run the algorithm on. |
| */ |
| template <class T, bool count_min, bool count_max, bool loc_min, bool loc_max> |
| void minmax_loc(const Window &win); |
| /** Common signature for all the specialised MinMaxLoc functions |
| * |
| * @param[in] window Region on which to execute the kernel. |
| */ |
| using MinMaxLocFunction = void (NEMinMaxLocationKernel::*)(const Window &window); |
| /** MinMaxLoc function to use for the particular image types passed to configure() */ |
| MinMaxLocFunction _func; |
| /** Helper to create a function pointer table for the parameterized MinMaxLocation functions. */ |
| template <class T, typename> |
| struct create_func_table; |
| |
| const IImage *_input; /**< Input image. */ |
| void *_min; /**< Minimum value. */ |
| void *_max; /**< Maximum value. */ |
| uint32_t *_min_count; /**< Count of minimum value encounters. */ |
| uint32_t *_max_count; /**< Count of maximum value encounters. */ |
| ICoordinates2DArray *_min_loc; /**< Locations of minimum values. */ |
| ICoordinates2DArray *_max_loc; /**< Locations of maximum values. */ |
| }; |
| } // namespace arm_compute |
| #endif /*__ARM_COMPUTE_NEMINMAXLOCATIONKERNEL_H__ */ |