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/*
* Copyright (c) 2021 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_CL_UTILS_CL_AUX_TENSOR_HANDLER_H
#define ARM_COMPUTE_CL_UTILS_CL_AUX_TENSOR_HANDLER_H
#include "arm_compute/core/ITensorPack.h"
#include "arm_compute/core/TensorInfo.h"
#include "arm_compute/runtime/CL/CLTensor.h"
#include "support/Cast.h"
namespace arm_compute
{
namespace opencl
{
/* Tensor handler to wrap and handle tensor allocations on workspace buffers */
class CLAuxTensorHandler
{
public:
CLAuxTensorHandler(int slot_id, TensorInfo &info, ITensorPack &pack, bool pack_inject = false)
: _tensor()
{
_tensor.allocator()->soft_init(info);
ICLTensor *packed_tensor = utils::cast::polymorphic_downcast<ICLTensor *>(pack.get_tensor(slot_id));
if((packed_tensor == nullptr) || (info.total_size() > packed_tensor->info()->total_size()))
{
_tensor.allocator()->allocate();
if(pack_inject)
{
pack.add_tensor(slot_id, &_tensor);
_injected_tensor_pack = &pack;
_injected_slot_id = slot_id;
}
}
else
{
_tensor.allocator()->import_memory(packed_tensor->cl_buffer());
}
}
CLAuxTensorHandler(TensorInfo &info, ICLTensor &tensor)
: _tensor()
{
_tensor.allocator()->soft_init(info);
if(info.total_size() <= tensor.info()->total_size())
{
_tensor.allocator()->import_memory(tensor.cl_buffer());
}
}
CLAuxTensorHandler(const CLAuxTensorHandler &) = delete;
CLAuxTensorHandler &operator=(const CLAuxTensorHandler) = delete;
~CLAuxTensorHandler()
{
if(_injected_tensor_pack)
{
_injected_tensor_pack->remove_tensor(_injected_slot_id);
}
}
ICLTensor *get()
{
return &_tensor;
}
ICLTensor *operator()()
{
return &_tensor;
}
private:
CLTensor _tensor{};
ITensorPack *_injected_tensor_pack{ nullptr };
int _injected_slot_id{ TensorType::ACL_UNKNOWN };
};
} // namespace opencl
} // namespace arm_compute
#endif /* ARM_COMPUTE_CL_UTILS_CL_AUX_TENSOR_HANDLER_H */
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