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/*
* Copyright (c) 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.
*/
#include "arm_compute/graph/SubTensor.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/core/Helpers.h"
#include "arm_compute/core/Validate.h"
#include "arm_compute/runtime/CL/CLSubTensor.h"
#include "arm_compute/runtime/CL/CLTensor.h"
#include "arm_compute/runtime/SubTensor.h"
#include "arm_compute/runtime/Tensor.h"
#include "utils/TypePrinter.h"
using namespace arm_compute::graph;
namespace
{
template <typename SubTensorType, typename ParentTensorType>
std::unique_ptr<arm_compute::ITensor> initialise_subtensor(arm_compute::ITensor *parent, TensorShape shape, Coordinates coords)
{
auto ptensor = dynamic_cast<ParentTensorType *>(parent);
auto subtensor = arm_compute::support::cpp14::make_unique<SubTensorType>(ptensor, shape, coords);
return std::move(subtensor);
}
} // namespace
SubTensor::SubTensor()
: _target(TargetHint::DONT_CARE), _tensor_shape(), _coords(), _parent(nullptr), _subtensor(nullptr)
{
}
SubTensor::SubTensor(Tensor &parent, TensorShape tensor_shape, Coordinates coords)
: _target(TargetHint::DONT_CARE), _tensor_shape(tensor_shape), _coords(coords), _parent(nullptr), _subtensor(nullptr)
{
ARM_COMPUTE_ERROR_ON(parent.tensor() == nullptr);
_parent = parent.tensor();
_target = parent.target();
instantiate_subtensor();
}
SubTensor::SubTensor(arm_compute::ITensor *parent, TensorShape tensor_shape, Coordinates coords, TargetHint target)
: _target(target), _tensor_shape(tensor_shape), _coords(coords), _parent(parent), _subtensor(nullptr)
{
ARM_COMPUTE_ERROR_ON(parent == nullptr);
instantiate_subtensor();
}
bool SubTensor::call_accessor()
{
return true;
}
bool SubTensor::has_accessor() const
{
return false;
}
arm_compute::ITensor *SubTensor::set_target(TargetHint target)
{
ARM_COMPUTE_ERROR_ON(target != _target);
return (target == _target) ? _subtensor.get() : nullptr;
}
arm_compute::ITensor *SubTensor::tensor()
{
return _subtensor.get();
}
TargetHint SubTensor::target() const
{
return _target;
}
void SubTensor::allocate()
{
// NOP for sub-tensors
}
void SubTensor::instantiate_subtensor()
{
switch(_target)
{
case TargetHint::OPENCL:
_subtensor = initialise_subtensor<arm_compute::CLSubTensor, arm_compute::ICLTensor>(_parent, _tensor_shape, _coords);
break;
case TargetHint::NEON:
_subtensor = initialise_subtensor<arm_compute::SubTensor, arm_compute::ITensor>(_parent, _tensor_shape, _coords);
break;
default:
ARM_COMPUTE_ERROR("Invalid TargetHint");
}
}
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