Function dmHashUpdateBuffer64

engine/dlib/src/dlib/hash.cpp:523–558

}

void dmHashUpdateBuffer64(HashState64* hash_state, const void* buffer, uint32_t buffer_len)
{
    const uint64_t m = 0xc6a4a7935bd1e995ULL;
    const int r = 47;

    const unsigned char * data = (const unsigned char *) buffer;
    int len = (int) buffer_len;

    hash_state->m_Size += len;

    MixTail64(hash_state, data, len);

    while(len >= 8)
    {
        uint64_t k;
        k  = uint64_t(data[0]);
        k |= uint64_t(data[1]) << 8;
        k |= uint64_t(data[2]) << 16;
        k |= uint64_t(data[3]) << 24;
        k |= uint64_t(data[4]) << 32;
        k |= uint64_t(data[5]) << 40;
        k |= uint64_t(data[6]) << 48;
        k |= uint64_t(data[7]) << 56;

        mmix(hash_state->m_Hash, k);

        data += 8;
        len -= 8;
    }

    MixTail64(hash_state, data, len);
    if (dmHashContainer().m_Enabled && hash_state->m_ReverseHashEntryIndex && hash_state->m_Size <= DMHASH_MAX_REVERSE_LENGTH)
    {
        dmHashContainer().UpdateReversHashState(hash_state->m_ReverseHashEntryIndex, hash_state->m_Size, buffer, buffer_len);
    }
}

uint64_t dmHashFinal64(HashState64* hash_state)
{