DBG("image_io_read_data_prepare()");
if (rdi->need_transformations = io->cols != cols || io->rows != rows ||
((io->flags ^ flags) & IMAGE_NEW_FLAGS))
DBG("image_io_read_data_prepare()");
if (rdi->need_transformations = io->cols != cols || io->rows != rows ||
((io->flags ^ flags) & IMAGE_NEW_FLAGS))