void SpookyHash128(const void* data, size_t size, const uint8_t* seed, uint8_t* digest)
{
uint64_t h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11;
uint64_t buf[sc_numVars];
size_t nblocks;
const uint64_t* blocks;
const uint64_t* end;
size_t size_remainder;
#if WORDS_BIGENDIAN
unsigned i;
#endif
h9 = util_read64(seed + 0);
h10 = util_read64(seed + 8);
h0 = h3 = h6 = h9;
h1 = h4 = h7 = h10;
h2 = h5 = h8 = h11 = sc_const;
nblocks = size / sc_blockSize;
blocks = data;
end = blocks + nblocks * sc_numVars;
/* body */
while (blocks < end) {
#if WORDS_BIGENDIAN
for (i = 0; i < sc_numVars; ++i)
buf[i] = util_swap64(blocks[i]);
Mix(buf, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11);
#else
Mix(blocks, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11);
#endif
blocks += sc_numVars;
}
/* tail */
size_remainder = (size - ((const uint8_t*)end - (const uint8_t*)data));
memcpy(buf, end, size_remainder);
memset(((uint8_t*)buf) + size_remainder, 0, sc_blockSize - size_remainder);
((uint8_t*)buf)[sc_blockSize - 1] = size_remainder;
/* finalization */
#if WORDS_BIGENDIAN
for (i = 0; i < sc_numVars; ++i)
buf[i] = util_swap64(buf[i]);
#endif
End(buf, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11);
util_write64(digest + 0, h0);
util_write64(digest + 8, h1);
}
void SpookyHash128(const void* message, size_t length, const uint8_t* seed, uint8_t* digest)
{
uint64_t h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11;
uint64_t buf[sc_numVars];
uint64_t* end;
union {
const uint8_t* p8;
uint64_t* p64;
size_t i;
} u;
size_t remainder;
#if WORDS_BIGENDIAN
unsigned i;
#endif
h9 = ((const uint64_t*)seed)[0];
h10 = ((const uint64_t*)seed)[1];
#if WORDS_BIGENDIAN
h9 = util_swap64(h9);
h10 = util_swap64(h10);
#endif
h0 = h3 = h6 = h9;
h1 = h4 = h7 = h10;
h2 = h5 = h8 = h11 = sc_const;
u.p8 = message;
end = u.p64 + (length / sc_blockSize) * sc_numVars;
/* body */
while (u.p64 < end) {
#if WORDS_BIGENDIAN
for (i = 0; i < sc_numVars; ++i)
buf[i] = util_swap64(u.p64[i]);
Mix(buf, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11);
#else
Mix(u.p64, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11);
#endif
u.p64 += sc_numVars;
}
/* tail */
remainder = (length - ((const uint8_t*)end - (const uint8_t*)message));
memcpy(buf, end, remainder);
memset(((uint8_t*)buf) + remainder, 0, sc_blockSize - remainder);
((uint8_t*)buf)[sc_blockSize - 1] = remainder;
/* finalization */
#if WORDS_BIGENDIAN
for (i = 0; i < sc_numVars; ++i)
buf[i] = util_swap64(buf[i]);
#endif
End(buf, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11);
#if WORDS_BIGENDIAN
h0 = util_swap64(h0);
h1 = util_swap64(h1);
#endif
((uint64_t*)digest)[0] = h0;
((uint64_t*)digest)[1] = h1;
}
