READ_LINE
READ_LINE(function_name, pixel_name, u8, argb_u16_from_u8888, a, r, g, b)
READ_LINE(function_name, pixel_name, __le16, argb_u16_from_le16161616, a, r, g, b)
READ_LINE(RGB565_read_line, px, __le16, argb_u16_from_RGB565, px)
READ_LINE(BGR565_read_line, px, __le16, argb_u16_from_BGR565, px)
READ_LINE(R8_read_line, px, u8, argb_u16_from_gray8, *px)