The high-resolution mode of the DC-S1RM2 (16296 x 10856) tiles the image in two
rows of four. Tag 0x0045 holds (x, y) u16 pairs per tile (y was always 0 in
single-row files, where the old 32-bit reading gave the same numbers), and tag
0x0043 is the number of tile rows. The decoder now takes each tile's position
from the lists, checks that the tiles lie inside the image, do not overlap and
cover it exactly, and that 0x0043 equals the number of distinct tile tops.
Tiles are decoded like strips. Other tag values are still refused.
radialmonster
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