mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
56bec1dd7b
This encapsulates a lot of the required memory management into the Buffer object and related code. Many now unneeded classes were deleted.
90 lines
2.1 KiB
C++
90 lines
2.1 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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//
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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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#include <vtkm/cont/ArrayHandle.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 detail
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{
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VTKM_CONT void ArrayHandleReleaseResourcesExecution(
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const std::vector<vtkm::cont::internal::Buffer>& buffers)
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{
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vtkm::cont::Token token;
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for (auto&& buf : buffers)
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{
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// Getting a write host buffer should invalidate any execution arrays.
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// Might want to make something more explicit in Buffer.
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buf.WritePointerHost(token);
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}
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}
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VTKM_CONT bool ArrayHandleIsOnDevice(const std::vector<vtkm::cont::internal::Buffer>& buffers,
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vtkm::cont::DeviceAdapterId device)
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{
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for (auto&& buf : buffers)
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{
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if (!buf.IsAllocatedOnDevice(device))
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{
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return false;
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}
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}
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return true;
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}
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}
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}
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} // namespace vtkm::cont::detail
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namespace
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{
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struct DeviceCheckFunctor
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{
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vtkm::cont::DeviceAdapterId FoundDevice = vtkm::cont::DeviceAdapterTagUndefined{};
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VTKM_CONT void operator()(vtkm::cont::DeviceAdapterId device,
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const std::vector<vtkm::cont::internal::Buffer>& buffers)
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{
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if (this->FoundDevice == vtkm::cont::DeviceAdapterTagUndefined{})
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{
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if (vtkm::cont::detail::ArrayHandleIsOnDevice(buffers, device))
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{
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this->FoundDevice = device;
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}
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}
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}
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};
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} // anonymous namespace
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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 detail
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{
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VTKM_CONT vtkm::cont::DeviceAdapterId ArrayHandleGetDeviceAdapterId(
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const std::vector<vtkm::cont::internal::Buffer>& buffers)
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{
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DeviceCheckFunctor functor;
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vtkm::ListForEach(functor, VTKM_DEFAULT_DEVICE_ADAPTER_LIST{}, buffers);
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return functor.FoundDevice;
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}
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}
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}
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} // namespace vtkm::cont::detail
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