Region clip, Composite comp,
AffineTransform xform,
int pixel, int flags)
{
if (dstData instanceof D3DSurfaceData == false) {
throw new InvalidPipeException("Incorrect destination surface");
}
D3DContext d3dc = ((D3DSurfaceData)dstData).getContext();
try {
d3dc.validate(srcData, dstData, clip, comp, xform, pixel, flags);