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/*
* Copyright (c) 2018-2020 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_CLARGMINMAXLAYER_H
#define ARM_COMPUTE_CLARGMINMAXLAYER_H
#include "arm_compute/core/CL/kernels/CLArgMinMaxLayerKernel.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/runtime/CL/CLTensor.h"
#include "arm_compute/runtime/CL/functions/CLReshapeLayer.h"
#include "arm_compute/runtime/IFunction.h"
#include "arm_compute/runtime/IMemoryManager.h"
#include "arm_compute/runtime/MemoryGroup.h"
namespace arm_compute
{
class ITensorInfo;
class ICLTensor;
/** Function to calculate the index of the minimum or maximum values in a
* tensor based on an axis.
*
* @note The default data type for an uninitialized output tensor is
* signed 32-bit integer (S32). It is the user's responsibility to check
* that the results do not overflow because the indices are computed
* in unsigned 32-bit (U32).
*/
class CLArgMinMaxLayer : public IFunction
{
public:
/** Default Constructor.
*
* @param[in] memory_manager (Optional) Memory manager.
*/
CLArgMinMaxLayer(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
/** Set the input and output tensors.
*
* @param[in] input Input source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/S32/F16/F32.
* @param[in] axis Axis to find max/min index.
* @param[out] output Output source tensor. Data types supported: U32/S32.
* @param[in] op Reduction operation to perform. Operations supported: ARG_IDX_MAX, ARG_IDX_MIN
*/
void configure(const ICLTensor *input, int axis, ICLTensor *output, const ReductionOperation &op);
/** Set the input and output tensors.
*
* @param[in] compile_context The compile context to be used.
* @param[in] input Input source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/S32/F16/F32.
* @param[in] axis Axis to find max/min index.
* @param[out] output Output source tensor. Data types supported: U32/S32.
* @param[in] op Reduction operation to perform. Operations supported: ARG_IDX_MAX, ARG_IDX_MIN
*/
void configure(const CLCompileContext &compile_context, const ICLTensor *input, int axis, ICLTensor *output, const ReductionOperation &op);
/** Static function to check if given info will lead to a valid configuration of @ref CLArgMinMaxLayer
*
* @param[in] input Input source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/S32/F16/F32.
* @param[in] axis Axis to find max/min index.
* @param[in] output Output source tensor info. Data types supported: U32/S32.
* @param[in] op Reduction operation to perform. Operations supported: ARG_IDX_MAX, ARG_IDX_MIN
*
* @return a status
*/
static Status validate(const ITensorInfo *input, int axis, const ITensorInfo *output, const ReductionOperation &op);
// Inherited methods overridden:
void run() override;
private:
MemoryGroup _memory_group;
std::vector<CLTensor> _results_vector;
CLTensor _not_reshaped_output;
std::vector<CLArgMinMaxLayerKernel> _reduction_kernels_vector;
CLReshapeLayer _reshape;
unsigned int _num_of_stages;
unsigned int _reduction_axis;
};
} // namespace arm_compute
#endif /* ARM_COMPUTE_CLARGMINMAXLAYER_H */
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