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///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2012-2013 DreamWorks Animation LLC
//
// All rights reserved. This software is distributed under the
// Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
//
// Redistributions of source code must retain the above copyright
// and license notice and the following restrictions and disclaimer.
//
// * Neither the name of DreamWorks Animation nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// IN NO EVENT SHALL THE COPYRIGHT HOLDERS' AND CONTRIBUTORS' AGGREGATE
// LIABILITY FOR ALL CLAIMS REGARDLESS OF THEIR BASIS EXCEED US$250.00.
//
///////////////////////////////////////////////////////////////////////////
#ifndef OPENVDB_IO_STREAM_HAS_BEEN_INCLUDED
#define OPENVDB_IO_STREAM_HAS_BEEN_INCLUDED
#include <iosfwd>
#include "Archive.h"
namespace openvdb {
OPENVDB_USE_VERSION_NAMESPACE
namespace OPENVDB_VERSION_NAME {
namespace io {
class GridDescriptor;
/// Grid archive associated with arbitrary input and output streams (not necessarily files)
class OPENVDB_API Stream: public Archive
{
public:
/// Read grids from an input stream.
explicit Stream(std::istream&);
/// Construct an archive for stream output.
Stream();
/// Construct an archive for output to the given stream.
explicit Stream(std::ostream&);
virtual ~Stream();
/// @brief Return a copy of this archive.
virtual boost::shared_ptr<Archive> copy() const;
/// Return the file-level metadata in a newly created MetaMap.
MetaMap::Ptr getMetadata() const;
/// Return pointers to the grids that were read from the input stream.
GridPtrVecPtr getGrids() { return mGrids; }
/// @brief Write the grids in the given container to this archive's output stream.
/// @throw ValueError if this archive was constructed without specifying an output stream.
virtual void write(const GridCPtrVec&, const MetaMap& = MetaMap()) const;
/// @brief Write the grids in the given container to this archive's output stream.
/// @throw ValueError if this archive was constructed without specifying an output stream.
template<typename GridPtrContainerT>
void write(const GridPtrContainerT&, const MetaMap& = MetaMap()) const;
/// @brief Write the grids in the given container to an output stream.
/// @deprecated Use Stream(os).write(grids) instead.
template<typename GridPtrContainerT>
OPENVDB_DEPRECATED void write(std::ostream&,
const GridPtrContainerT&, const MetaMap& = MetaMap()) const;
private:
/// Create a new grid of the type specified by the given descriptor,
/// then populate the grid from the given input stream.
/// @return the newly created grid.
GridBase::Ptr readGrid(const GridDescriptor&, std::istream&) const;
void writeGrids(std::ostream&, const GridCPtrVec&, const MetaMap&) const;
MetaMap::Ptr mMeta;
GridPtrVecPtr mGrids;
std::ostream* mOutputStream;
};
////////////////////////////////////////
inline void
Stream::write(const GridCPtrVec& grids, const MetaMap& metadata) const
{
if (mOutputStream == NULL) {
OPENVDB_THROW(ValueError, "no output stream was specified");
}
this->writeGrids(*mOutputStream, grids, metadata);
}
template<typename GridPtrContainerT>
inline void
Stream::write(const GridPtrContainerT& container, const MetaMap& metadata) const
{
if (mOutputStream == NULL) {
OPENVDB_THROW(ValueError, "no output stream was specified");
}
GridCPtrVec grids;
std::copy(container.begin(), container.end(), std::back_inserter(grids));
this->writeGrids(*mOutputStream, grids, metadata);
}
template<typename GridPtrContainerT>
inline void
Stream::write(std::ostream& os, const GridPtrContainerT& container,
const MetaMap& metadata) const
{
GridCPtrVec grids;
std::copy(container.begin(), container.end(), std::back_inserter(grids));
this->writeGrids(os, grids, metadata);
}
template<>
inline void
Stream::write<GridCPtrVec>(std::ostream& os, const GridCPtrVec& grids,
const MetaMap& metadata) const
{
this->writeGrids(os, grids, metadata);
}
} // namespace io
} // namespace OPENVDB_VERSION_NAME
} // namespace openvdb
#endif // OPENVDB_IO_STREAM_HAS_BEEN_INCLUDED
// Copyright (c) 2012-2013 DreamWorks Animation LLC
// All rights reserved. This software is distributed under the
// Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
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