/* Downsample pixel values of a single component. This version handles the special case of a full-size component, without smoothing.  */
fullsize_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
/* Downsample pixel values of a single component. This version handles the special case of a full-size component, without smoothing.  */
fullsize_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
{
  jcopy_sample_rows(input_data, 0, output_data, 0,
		    cinfo->max_v_samp_factor, cinfo->image_width);
  expand_right_edge(output_data, cinfo->max_v_samp_factor, cinfo->image_width,
		    compptr->width_in_blocks * compptr->DCT_h_scaled_size);
}