-
-#define DEFINE_SHUFFLE_BYTES(a, b, c, d) \
-void shuffle_bytes_ ## a ## b ## c ## d(const uint8_t *src, \
- uint8_t *dst, int src_size) \
-{ \
- int i; \
- \
- for (i = 0; i < src_size; i += 4) { \
- dst[i + 0] = src[i + a]; \
- dst[i + 1] = src[i + b]; \
- dst[i + 2] = src[i + c]; \
- dst[i + 3] = src[i + d]; \
- } \
-}
-
-DEFINE_SHUFFLE_BYTES(1, 2, 3, 0)
-DEFINE_SHUFFLE_BYTES(3, 0, 1, 2)
-DEFINE_SHUFFLE_BYTES(3, 2, 1, 0)
-