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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 SRC_COMMON_ITENSOR_H_
#define SRC_COMMON_ITENSOR_H_
#include "src/common/IContext.h"
#include "src/common/utils/Validate.h"
struct AclTensor_
{
arm_compute::detail::Header header{ arm_compute::detail::ObjectType::Tensor, nullptr };
protected:
AclTensor_() = default;
~AclTensor_() = default;
};
namespace arm_compute
{
// Forward declaration
class ITensor;
/** Base class specifying the tensor interface */
class ITensorV2 : public AclTensor_
{
public:
/** Explict Operator Constructor
*
* @param[in] ctx Context to be used by the operator
*/
explicit ITensorV2(IContext *ctx)
: AclTensor_()
{
ARM_COMPUTE_ASSERT_NOT_NULLPTR(ctx);
this->header.ctx = ctx;
this->header.ctx->inc_ref();
}
/** Destructor */
virtual ~ITensorV2()
{
this->header.ctx->dec_ref();
this->header.type = detail::ObjectType::Invalid;
};
/** Checks if a queue is valid
*
* @return True if successful otherwise false
*/
bool is_valid() const
{
return this->header.type == detail::ObjectType::Tensor;
};
/** Map tensor to a host pointer
*
* @return A pointer to the underlying backing memory if successful else nullptr
*/
virtual void *map() = 0;
/** Unmap tensor
*
* @return AclStatus A status cod
*/
virtual StatusCode unmap() = 0;
/** Import external memory handle
*
* @param[in] handle Memory to import
* @param[in] type Type of imported memory
*
* @return Status code
*/
virtual StatusCode import(void *handle, ImportMemoryType type) = 0;
/** Get the legacy tensor object
*
* @return The legacy underlying tensor object
*/
virtual arm_compute::ITensor *tensor() const = 0;
/** Get the size of the tensor in byte
*
* @note The size isn't based on allocated memory, but based on information in its descriptor (dimensions, data type, etc.).
*
* @return The size of the tensor in byte
*/
size_t get_size() const;
/** Get the descriptor of this tensor
*
* @return The descriptor describing the characteristics of this tensor
*/
AclTensorDescriptor get_descriptor() const;
};
/** Extract internal representation of a Tensor
*
* @param[in] tensor Opaque tensor pointer
*
* @return The internal representation as an ITensor
*/
inline ITensorV2 *get_internal(AclTensor tensor)
{
return static_cast<ITensorV2 *>(tensor);
}
namespace detail
{
/** Check if an internal tensor is valid
*
* @param[in] tensor Internal tensor to check
*
* @return A status code
*/
inline StatusCode validate_internal_tensor(const ITensorV2 *tensor)
{
if(tensor == nullptr || !tensor->is_valid())
{
ARM_COMPUTE_LOG_ERROR_ACL("[ITensorV2]: Invalid tensor object");
return StatusCode::InvalidArgument;
}
return StatusCode::Success;
}
} // namespace detail
} // namespace arm_compute
#endif /* SRC_COMMON_ITENSOR_H_ */
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