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/*
* Copyright 2008-2009 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cusp/array1d.h>
#include <cusp/copy.h>
#include <cusp/detail/host/convert.h>
#include <cusp/detail/device/convert.h>
namespace cusp
{
namespace detail
{
namespace dispatch
{
///////////////////////
// Host to Host Path //
///////////////////////
template <typename SourceType, typename DestinationType>
void convert(const SourceType& src, DestinationType& dst, cusp::host_memory, cusp::host_memory)
{
cusp::detail::host::convert(src, dst);
}
/////////////////////////
// Host to Device Path //
/////////////////////////
template <typename SourceType, typename DestinationType>
void convert(const SourceType& src, DestinationType& dst, cusp::host_memory, cusp::device_memory)
{
// first convert on host, then transfer to device
typedef typename DestinationType::container DestinationContainerType;
typedef typename DestinationContainerType::template rebind<cusp::host_memory>::type HostDestinationContainerType;
HostDestinationContainerType tmp;
cusp::detail::host::convert(src, tmp);
cusp::copy(tmp, dst);
}
/////////////////////////
// Device to Host Path //
/////////////////////////
template <typename SourceType, typename DestinationType>
void convert(const SourceType& src, DestinationType& dst, cusp::device_memory, cusp::host_memory)
{
// first transfer to host, then convert on host
typedef typename SourceType::container SourceContainerType;
typedef typename SourceContainerType::template rebind<cusp::host_memory>::type HostSourceContainerType;
HostSourceContainerType tmp(src);
cusp::detail::host::convert(tmp, dst);
}
///////////////////////////
// Device to Device Path //
///////////////////////////
template <typename SourceType, typename DestinationType>
void convert(const SourceType& src, DestinationType& dst, cusp::device_memory, cusp::device_memory)
{
cusp::detail::device::convert(src, dst);
}
} // end namespace dispatch
} // end namespace detail
} // end namespace cusp
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