// -*- c++ -*- | |
// Searches the center vertical line above center and below, in both the old | |
// and new fields, but takes averages. These are even pixel addresses. | |
MERGE4PIXavg("(%%"XDI", %%"XCX", 2)", "(%%"XSI")") // down, up | |
MERGE4PIXavg("(%%"XDI")", "(%%"XSI", %%"XCX", 2)") // up, down |