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/*
* Copyright (c) 2017-2019 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.
*/
#include "arm_compute/runtime/CL/functions/CLHOGGradient.h"
#include "arm_compute/core/Helpers.h"
#include "arm_compute/core/Validate.h"
#include "arm_compute/runtime/CL/CLScheduler.h"
using namespace arm_compute;
CLHOGGradient::CLHOGGradient(std::shared_ptr<IMemoryManager> memory_manager)
: _memory_group(std::move(memory_manager)), _derivative(), _mag_phase(), _gx(), _gy()
{
}
void CLHOGGradient::configure(ICLTensor *input, ICLTensor *output_magnitude, ICLTensor *output_phase, PhaseType phase_type, BorderMode border_mode, uint8_t constant_border_value)
{
ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8);
ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_magnitude, 1, DataType::S16);
ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_phase, 1, DataType::U8);
const TensorShape &shape_img = input->info()->tensor_shape();
// Allocate image memory
TensorInfo info(shape_img, Format::S16);
_gx.allocator()->init(info);
_gy.allocator()->init(info);
// Manage intermediate buffers
_memory_group.manage(&_gx);
_memory_group.manage(&_gy);
// Initialise derivate kernel
_derivative.configure(input, &_gx, &_gy, border_mode, constant_border_value);
// Initialise magnitude/phase kernel
if(PhaseType::UNSIGNED == phase_type)
{
_mag_phase.configure(&_gx, &_gy, output_magnitude, output_phase, MagnitudeType::L2NORM, PhaseType::UNSIGNED);
}
else
{
_mag_phase.configure(&_gx, &_gy, output_magnitude, output_phase, MagnitudeType::L2NORM, PhaseType::SIGNED);
}
// Allocate intermediate tensors
_gx.allocator()->allocate();
_gy.allocator()->allocate();
}
void CLHOGGradient::run()
{
MemoryGroupResourceScope scope_mg(_memory_group);
// Run derivative
_derivative.run();
// Run magnitude/phase kernel
CLScheduler::get().enqueue(_mag_phase);
}
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