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/*
* Copyright (c) 2017-2020 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_CLMINMAXLOCATION_H
#define ARM_COMPUTE_CLMINMAXLOCATION_H
#include "arm_compute/runtime/CL/CLArray.h"
#include "arm_compute/runtime/IFunction.h"
#include <memory>
namespace arm_compute
{
class CLCompileContext;
class CLMinMaxKernel;
class CLMinMaxLocationKernel;
class ICLTensor;
using ICLImage = ICLTensor;
/** Basic function to execute min and max location. This function calls the following OpenCL kernels:
*
* -# @ref CLMinMaxKernel
* -# @ref CLMinMaxLocationKernel
*
* @deprecated This function is deprecated and is intended to be removed in 21.05 release
*
*/
class CLMinMaxLocation : public IFunction
{
public:
/** Constructor */
CLMinMaxLocation();
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLMinMaxLocation(const CLMinMaxLocation &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLMinMaxLocation &operator=(const CLMinMaxLocation &) = delete;
/** Allow instances of this class to be moved */
CLMinMaxLocation(CLMinMaxLocation &&) = default;
/** Allow instances of this class to be moved */
CLMinMaxLocation &operator=(CLMinMaxLocation &&) = default;
/** Default destructor */
~CLMinMaxLocation();
/** Initialise the kernel's inputs and outputs.
*
* @note When locations of min and max occurrences are requested, the reported number of locations is limited to the given array size.
*
* @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 (Optional) Array of Coordinates2D used to store minimum value locations.
* @param[out] max_loc (Optional) Array of Coordinates2D used to store maximum value locations.
* @param[out] min_count (Optional) Number of minimum value encounters.
* @param[out] max_count (Optional) Number of maximum value encounters.
*/
void configure(const ICLImage *input, void *min, void *max,
CLCoordinates2DArray *min_loc = nullptr, CLCoordinates2DArray *max_loc = nullptr,
uint32_t *min_count = nullptr, uint32_t *max_count = nullptr);
/** Initialise the kernel's inputs and outputs.
*
* @note When locations of min and max occurrences are requested, the reported number of locations is limited to the given array size.
*
* @param[in] compile_context The compile context to be used.
* @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 (Optional) Array of Coordinates2D used to store minimum value locations.
* @param[out] max_loc (Optional) Array of Coordinates2D used to store maximum value locations.
* @param[out] min_count (Optional) Number of minimum value encounters.
* @param[out] max_count (Optional) Number of maximum value encounters.
*/
void configure(const CLCompileContext &compile_context, const ICLImage *input, void *min, void *max,
CLCoordinates2DArray *min_loc = nullptr, CLCoordinates2DArray *max_loc = nullptr,
uint32_t *min_count = nullptr, uint32_t *max_count = nullptr);
// Inherited methods overridden:
void run() override;
private:
std::unique_ptr<CLMinMaxKernel> _min_max_kernel; /**< Kernel that performs min/max */
std::unique_ptr<CLMinMaxLocationKernel> _min_max_loc_kernel; /**< Kernel that counts min/max occurrences and identifies their positions */
cl::Buffer _min_max_vals; /**< Buffer to collect min, max values */
cl::Buffer _min_max_count_vals; /**< Buffer to collect min, max values */
void *_min; /**< Minimum value. */
void *_max; /**< Maximum value. */
uint32_t *_min_count; /**< Minimum value occurrences. */
uint32_t *_max_count; /**< Maximum value occurrences. */
CLCoordinates2DArray *_min_loc; /**< Minimum value occurrences coordinates. */
CLCoordinates2DArray *_max_loc; /**< Maximum value occurrences coordinates. */
};
}
#endif /*ARM_COMPUTE_CLMINMAXLOCATION_H */
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