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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include <armnn/Exceptions.hpp>
#include <backendsCommon/CpuTensorHandle.hpp>
#include <cstring>
namespace armnn
{
ConstCpuTensorHandle::ConstCpuTensorHandle(const TensorInfo& tensorInfo)
: m_TensorInfo(tensorInfo)
, m_Memory(nullptr)
{
}
template <>
const void* ConstCpuTensorHandle::GetConstTensor() const
{
return m_Memory;
}
CpuTensorHandle::CpuTensorHandle(const TensorInfo& tensorInfo)
: ConstCpuTensorHandle(tensorInfo)
, m_MutableMemory(nullptr)
{
}
template <>
void* CpuTensorHandle::GetTensor() const
{
return m_MutableMemory;
}
ScopedCpuTensorHandle::ScopedCpuTensorHandle(const TensorInfo& tensorInfo)
: CpuTensorHandle(tensorInfo)
{
}
ScopedCpuTensorHandle::ScopedCpuTensorHandle(const ConstTensor& tensor)
: ScopedCpuTensorHandle(tensor.GetInfo())
{
CopyFrom(tensor.GetMemoryArea(), tensor.GetNumBytes());
}
ScopedCpuTensorHandle::ScopedCpuTensorHandle(const ConstCpuTensorHandle& tensorHandle)
: ScopedCpuTensorHandle(tensorHandle.GetTensorInfo())
{
CopyFrom(tensorHandle.GetConstTensor<void>(), tensorHandle.GetTensorInfo().GetNumBytes());
}
ScopedCpuTensorHandle::ScopedCpuTensorHandle(const ScopedCpuTensorHandle& other)
: CpuTensorHandle(other.GetTensorInfo())
{
CopyFrom(other);
}
ScopedCpuTensorHandle& ScopedCpuTensorHandle::operator=(const ScopedCpuTensorHandle& other)
{
::operator delete(GetTensor<void>());
SetMemory(nullptr);
CopyFrom(other);
return *this;
}
ScopedCpuTensorHandle::~ScopedCpuTensorHandle()
{
::operator delete(GetTensor<void>());
}
void ScopedCpuTensorHandle::Allocate()
{
if (GetTensor<void>() == nullptr)
{
SetMemory(::operator new(GetTensorInfo().GetNumBytes()));
}
else
{
throw InvalidArgumentException("CpuTensorHandle::Allocate Trying to allocate a CpuTensorHandle"
"that already has allocated memory.");
}
}
void ScopedCpuTensorHandle::CopyOutTo(void* memory) const
{
memcpy(memory, GetTensor<void>(), GetTensorInfo().GetNumBytes());
}
void ScopedCpuTensorHandle::CopyInFrom(const void* memory)
{
memcpy(GetTensor<void>(), memory, GetTensorInfo().GetNumBytes());
}
void ScopedCpuTensorHandle::CopyFrom(const ScopedCpuTensorHandle& other)
{
CopyFrom(other.GetTensor<void>(), other.GetTensorInfo().GetNumBytes());
}
void ScopedCpuTensorHandle::CopyFrom(const void* srcMemory, unsigned int numBytes)
{
BOOST_ASSERT(GetTensor<void>() == nullptr);
BOOST_ASSERT(GetTensorInfo().GetNumBytes() == numBytes);
if (srcMemory)
{
Allocate();
memcpy(GetTensor<void>(), srcMemory, numBytes);
}
}
void PassthroughCpuTensorHandle::Allocate()
{
throw InvalidArgumentException("PassthroughCpuTensorHandle::Allocate() should never be called");
}
void ConstPassthroughCpuTensorHandle::Allocate()
{
throw InvalidArgumentException("ConstPassthroughCpuTensorHandle::Allocate() should never be called");
}
} // namespace armnn
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