// This loads the original TIFF data into each scanline of the output frame,
// assuming the output scanlines are bigger than the input scanlines.
// Then it expands the input data in reverse to fill the row.
// This loads the original TIFF data into each scanline of the output frame,
// assuming the output scanlines are bigger than the input scanlines.
// Then it expands the input data in reverse to fill the row.