src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java

*** 1154,1164 ****
          //TODO blit. proof-of-concept
          if (src != dst && src != null && dst != null
              && !(dst instanceof NullSurfaceData)
              && !(src instanceof NullSurfaceData)
              && src.getSurfaceType().equals(dst.getSurfaceType())
!             && src.getDefaultScale() == dst.getDefaultScale()) {
              final Rectangle size = src.getBounds();
              final Blit blit = Blit.locate(src.getSurfaceType(),
                                            CompositeType.Src,
                                            dst.getSurfaceType());
              if (blit != null) {
--- 1154,1166 ----
          //TODO blit. proof-of-concept
          if (src != dst && src != null && dst != null
              && !(dst instanceof NullSurfaceData)
              && !(src instanceof NullSurfaceData)
              && src.getSurfaceType().equals(dst.getSurfaceType())
!             && src.getDefaultScaleX() == dst.getDefaultScaleX()
!             && src.getDefaultScaleY() == dst.getDefaultScaleY())
!         {
              final Rectangle size = src.getBounds();
              final Blit blit = Blit.locate(src.getSurfaceType(),
                                            CompositeType.Src,
                                            dst.getSurfaceType());
              if (blit != null) {