OGRErr OGRPolygon::importFromWkb( unsigned char * pabyData,
int nSize,
OGRwkbVariant eWkbVariant )
{
OGRwkbByteOrder eByteOrder = wkbNDR;
int nDataOffset = 0;
// coverity[tainted_data]
OGRErr eErr = oCC.importPreambuleFromWkb(this, pabyData, nSize, nDataOffset,
eByteOrder, 4, eWkbVariant);
if( eErr != OGRERR_NONE )
return eErr;
/* -------------------------------------------------------------------- */
/* Get the rings. */
/* -------------------------------------------------------------------- */
for( int iRing = 0; iRing < oCC.nCurveCount; iRing++ )
{
OGRLinearRing* poLR = new OGRLinearRing();
oCC.papoCurves[iRing] = poLR;
eErr = poLR->_importFromWkb( eByteOrder, flags,
pabyData + nDataOffset,
nSize );
if( eErr != OGRERR_NONE )
{
delete oCC.papoCurves[iRing];
oCC.nCurveCount = iRing;
return eErr;
}
if( nSize != -1 )
nSize -= poLR->_WkbSize( flags );
nDataOffset += poLR->_WkbSize( flags );
}
return OGRERR_NONE;
}
OGRErr OGRPolygon::exportToWkb( OGRwkbByteOrder eByteOrder,
unsigned char * pabyData,
OGRwkbVariant eWkbVariant ) const
{
/* -------------------------------------------------------------------- */
/* Set the byte order. */
/* -------------------------------------------------------------------- */
pabyData[0] =
DB2_V72_UNFIX_BYTE_ORDER(static_cast<unsigned char>(eByteOrder));
/* -------------------------------------------------------------------- */
/* Set the geometry feature type. */
/* -------------------------------------------------------------------- */
GUInt32 nGType = getGeometryType();
if( eWkbVariant == wkbVariantPostGIS1 )
{
nGType = wkbFlatten(nGType);
if( Is3D() )
// Explicitly set wkb25DBit.
nGType =
static_cast<OGRwkbGeometryType>(nGType | wkb25DBitInternalUse);
if( IsMeasured() )
nGType = static_cast<OGRwkbGeometryType>(nGType | 0x40000000);
}
else if( eWkbVariant == wkbVariantIso )
nGType = getIsoGeometryType();
if( OGR_SWAP( eByteOrder ) )
{
nGType = CPL_SWAP32(nGType);
}
memcpy( pabyData + 1, &nGType, 4 );
/* -------------------------------------------------------------------- */
/* Copy in the raw data. */
/* -------------------------------------------------------------------- */
if( OGR_SWAP( eByteOrder ) )
{
const int nCount = CPL_SWAP32( oCC.nCurveCount );
memcpy( pabyData+5, &nCount, 4 );
}
else
{
memcpy( pabyData+5, &oCC.nCurveCount, 4 );
}
/* ==================================================================== */
/* Serialize each of the rings. */
/* ==================================================================== */
int nOffset = 9;
for( int iRing = 0; iRing < oCC.nCurveCount; iRing++ )
{
OGRLinearRing* poLR = (OGRLinearRing*) oCC.papoCurves[iRing];
poLR->_exportToWkb( eByteOrder, flags,
pabyData + nOffset );
nOffset += poLR->_WkbSize( flags );
}
return OGRERR_NONE;
}
