trim_right_edge  1008 transupp.c           trim_right_edge(info, srcinfo->output_width);
trim_right_edge  1027 transupp.c           trim_right_edge(info, srcinfo->output_height);
trim_right_edge  1036 transupp.c           trim_right_edge(info, srcinfo->output_height);
trim_right_edge  1043 transupp.c           trim_right_edge(info, srcinfo->output_width);