* Compute the size in bytes of a raster suitable for
* holding a bitmap of \a width x \a height pixels.
*/
- #define RAST_SIZE(width, height) ( ((width) + 7 / 8) * (height) )
+ #define RAST_SIZE(width, height) ( (((width) + 7) / 8) * (height) )
#elif CONFIG_BITMAP_FMT == BITMAP_FMT_PLANAR_V_LSB
/**