copy_block(dframe, src.clone(), ebuf, 0, xoff, yoff, mx, my, bw * 4, bh * 4, 0, post, mode, ifuncs);
copy_block(dframe, src.clone(), ebuf, 1, xoff / 2, yoff / 2, cmx, cmy, bw * 2, bh * 2, 0, post, mode, ifuncs);
copy_block(dframe, src.clone(), ebuf, 0, xoff, yoff, mx, my, bw * 4, bh * 4, 0, post, mode, ifuncs);
copy_block(dframe, src.clone(), ebuf, 1, xoff / 2, yoff / 2, cmx, cmy, bw * 2, bh * 2, 0, post, mode, ifuncs);