mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
a6eecbe9ac
Certain backends desire the ability to mark allocations as being used for reading versus writing to improve performance.
99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2017 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2017 UT-Battelle, LLC.
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// Copyright 2017 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#include <vtkm/cont/internal/ArrayManagerExecutionShareWithControl.h>
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namespace vtkm
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{
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namespace cont
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{
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namespace internal
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{
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ExecutionArrayInterfaceBasicShareWithControl::ExecutionArrayInterfaceBasicShareWithControl(
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vtkm::cont::internal::StorageBasicBase& storage)
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: Superclass(storage)
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{
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}
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void ExecutionArrayInterfaceBasicShareWithControl::Allocate(TypelessExecutionArray& execArray,
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vtkm::UInt64 numBytes) const
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{
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this->ControlStorage.AllocateBytes(numBytes);
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execArray.Array = this->ControlStorage.GetBasePointer();
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execArray.ArrayEnd = this->ControlStorage.GetEndPointer();
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execArray.ArrayCapacity = this->ControlStorage.GetCapacityPointer();
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}
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void ExecutionArrayInterfaceBasicShareWithControl::Free(TypelessExecutionArray& execArray) const
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{
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// Just clear the pointers -- control storage will actually free the
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// memory when the time comes.
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execArray.Array = nullptr;
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execArray.ArrayEnd = nullptr;
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execArray.ArrayCapacity = nullptr;
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}
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void ExecutionArrayInterfaceBasicShareWithControl::CopyFromControl(const void* src,
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void* dst,
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vtkm::UInt64 bytes) const
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{
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if (src != dst)
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{
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const vtkm::UInt8* srcBegin = static_cast<const vtkm::UInt8*>(src);
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const vtkm::UInt8* srcEnd = srcBegin + bytes;
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vtkm::UInt8* dstBegin = static_cast<vtkm::UInt8*>(dst);
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std::copy(srcBegin, srcEnd, dstBegin);
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}
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}
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void ExecutionArrayInterfaceBasicShareWithControl::CopyToControl(const void* src,
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void* dst,
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vtkm::UInt64 bytes) const
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{
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if (src != dst)
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{
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const vtkm::UInt8* srcBegin = static_cast<const vtkm::UInt8*>(src);
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const vtkm::UInt8* srcEnd = srcBegin + bytes;
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vtkm::UInt8* dstBegin = static_cast<vtkm::UInt8*>(dst);
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std::copy(srcBegin, srcEnd, dstBegin);
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}
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}
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void ExecutionArrayInterfaceBasicShareWithControl::UsingForRead(const void*,
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const void*,
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vtkm::UInt64) const
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{
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}
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void ExecutionArrayInterfaceBasicShareWithControl::UsingForWrite(const void*,
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const void*,
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vtkm::UInt64) const
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{
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}
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void ExecutionArrayInterfaceBasicShareWithControl::UsingForReadWrite(const void*,
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const void*,
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vtkm::UInt64) const
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{
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}
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}
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}
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} // end namespace vtkm::cont::internal
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