void OrData::getChildrenHash( Util::Digest & oDigest, size_t iThreadId )
{
std::size_t numChildren = m_group->getNumChildren();
Ogawa::IDataPtr data = m_group->getData( numChildren - 1, iThreadId );
if ( data && data->getSize() >= 32 )
{
// children hash is the last 16 bytes
data->read( 16, oDigest.d, data->getSize() - 16, iThreadId );
}
}
void OrData::getPropertiesHash( Util::Digest & oDigest, size_t iThreadId )
{
std::size_t numChildren = m_group->getNumChildren();
Ogawa::IDataPtr data = m_group->getData( numChildren - 1, iThreadId );
if ( data && data->getSize() >= 32 )
{
// last 32 bytes are properties hash, followed by children hash
data->read( 16, oDigest.d, data->getSize() - 32, iThreadId );
}
}
//-*****************************************************************************
void ArImpl::init()
{
Ogawa::IGroupPtr group = m_archive.getGroup();
int version = -1;
std::size_t numChildren = group->getNumChildren();
if ( numChildren > 5 && group->isChildData( 0 ) &&
group->isChildData( 1 ) && group->isChildGroup( 2 ) &&
group->isChildData( 3 ) && group->isChildData( 4 ) &&
group->isChildData( 5 ) )
{
Ogawa::IDataPtr data = group->getData( 0, 0 );
if ( data->getSize() == 4 )
{
data->read( 4, &version, 0, 0 );
}
}
else
{
ABCA_THROW( "Invalid Alembic file." );
}
ABCA_ASSERT( version >= 0 && version <= ALEMBIC_OGAWA_FILE_VERSION,
"Unsupported file version detected: " << version );
// if it isn't there, something is wrong
int fileVersion = 0;
Ogawa::IDataPtr data = group->getData( 1, 0 );
if ( data->getSize() == 4 )
{
data->read( 4, &fileVersion, 0, 0 );
}
ABCA_ASSERT( fileVersion >= 9999,
"Unsupported Alembic version detected: " << fileVersion );
m_archiveVersion = fileVersion;
ReadTimeSamplesAndMax( group->getData( 4, 0 ),
m_timeSamples, m_maxSamples );
ReadIndexedMetaData( group->getData( 5, 0 ), m_indexMetaData );
m_data.reset( new OrData( group->getGroup( 2, false, 0 ), "", 0, *this,
m_indexMetaData ) );
m_header->setName( "ABC" );
m_header->setFullName( "/" );
// read archive metadata
data = group->getData( 3, 0 );
if ( data->getSize() > 0 )
{
char * buf = new char[ data->getSize() ];
data->read( data->getSize(), buf, 0, 0 );
std::string metaData(buf, data->getSize() );
m_header->getMetaData().deserialize( metaData );
delete [] buf;
}
}