IMGU_PIXELS_PER_WORD
ofs_x / IMGU_PIXELS_PER_WORD * IMGU_BYTES_PER_WORD +
acc->input_feeder.data.start_pixel = ofs_x % IMGU_PIXELS_PER_WORD;
ofs_x / IMGU_PIXELS_PER_WORD * IMGU_BYTES_PER_WORD +
feeder_data->start_pixel = ofs_x % IMGU_PIXELS_PER_WORD;