294 

   295 #if defined(__APPLE__)

   296 	/* Make endian swapping use Apple's macros to increase speed

   297 	 * (since it will use hardware swapping if available).

   298 	 * Even though they should return uint16 and uint32, we get

   299 	 * warnings if we don't cast those (why?) */

   300 	#define BSWAP32(x) ((uint32)Endian32_Swap(x))

   301 	#define BSWAP16(x) ((uint16)Endian16_Swap(x))

   302 #else

   303 	/**

   304 	 * Perform a 32 bits endianness bitswap on x.

   305 	 * @param x the variable to bitswap

   306 	 * @return the bitswapped value.

   307 	 */

   308 	static inline uint32 BSWAP32(uint32 x)

   309 	{

   310 		return ((x >> 24) & 0xFF) | ((x >> 8) & 0xFF00) | ((x << 8) & 0xFF0000) | ((x << 24) & 0xFF000000);

   311 	}

   312 

   313 	/**

   314 	 * Perform a 16 bits endianness bitswap on x.

   315 	 * @param x the variable to bitswap

   316 	 * @return the bitswapped value.

   317 	 */

   318 	static inline uint16 BSWAP16(uint16 x)

   319 	{

   320 		return (x >> 8) | (x << 8);

   321 	}

   322 #endif /* __APPLE__ */

   323