OData.cpp
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//-*****************************************************************************
//
// Copyright (c) 2013,
// Sony Pictures Imageworks Inc. and
// Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
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#include "OGroup.h"
#include "OData.h"
#include "OStream.h"
namespace Alembic {
namespace Ogawa {
namespace ALEMBIC_VERSION_NS {
class OData::PrivateData
{
public:
// for the empty dataset
PrivateData()
{
pos = 0;
size = 0;
}
PrivateData(OStreamPtr iStream,
Alembic::Util::uint64_t iPos,
Alembic::Util::uint64_t iSize) :
stream(iStream), pos(iPos), size(iSize) {}
~PrivateData() {}
OStreamPtr stream;
Alembic::Util::uint64_t pos;
Alembic::Util::uint64_t size;
};
OData::OData() : mData(new OData::PrivateData())
{
}
OData::OData(OStreamPtr iStream,
Alembic::Util::uint64_t iPos,
Alembic::Util::uint64_t iSize)
: mData(new OData::PrivateData(iStream, iPos, iSize))
{
}
OData::~OData()
{
}
void OData::rewrite(Alembic::Util::uint64_t iSize, void * iData,
Alembic::Util::uint64_t iOffset)
{
// don't write anything if we will write beyond our buffer or the
// stream is invalid
if (!mData->stream || iSize == 0 || mData->size == 0 ||
iOffset + iSize > mData->size)
{
return;
}
// +8 is to account for the written out size
mData->stream->seek(mData->pos + iOffset + 8);
mData->stream->write(iData, iSize);
}
Alembic::Util::uint64_t OData::getSize() const
{
return mData->size;
}
Alembic::Util::uint64_t OData::getPos() const
{
return mData->pos;
}
} // End namespace ALEMBIC_VERSION_NS
} // End namespace Ogawa
} // End namespace Alembic
Alembic::Ogawa::ALEMBIC_VERSION_NS
Definition IArchive.cpp:40
Alembic::Ogawa
Definition OgawaFwd.h:78
Alembic
Definition OgawaFwd.h:77