opt.xres = ts_lookup_int(cfg, "options.video.xres", DEF_XRES);
opt.yres = ts_lookup_int(cfg, "options.video.yres", DEF_YRES);
opt.xres = ts_lookup_int(cfg, "options.video.xres", DEF_XRES);
opt.yres = ts_lookup_int(cfg, "options.video.yres", DEF_YRES);