public static void ZSTD_fillHashTable(ZSTD_matchState_t *ms, void *end, ZSTD_dictTableLoadMethod_e dtlm)
{
ZSTD_compressionParameters *cParams = &ms->cParams;
uint * hashTable = ms->hashTable;
uint hBits = cParams->hashLog;
uint mls = cParams->minMatch;
byte * @base = ms->window.@base;
byte * ip = @base + ms->nextToUpdate;
byte * iend = ((byte *)(end)) - 8;
uint fastHashFillStep = 3;
for (; ip + fastHashFillStep < iend + 2; ip += fastHashFillStep)
{
uint curr = (uint)(ip - @base);
nuint hash0 = ZSTD_hashPtr((void *)ip, hBits, mls);
hashTable[hash0] = curr;
if (dtlm == ZSTD_dictTableLoadMethod_e.ZSTD_dtlm_fast)
{
continue;
}
{
uint p;
for (p = 1; p < fastHashFillStep; ++p)
{
nuint hash = ZSTD_hashPtr((void *)(ip + p), hBits, mls);
if (hashTable[hash] == 0)
{
hashTable[hash] = curr + p;
}
}
}
}
}
public static void ZSTD_fillDoubleHashTable(ZSTD_matchState_t *ms, void *end, ZSTD_dictTableLoadMethod_e dtlm)
{
ZSTD_compressionParameters *cParams = &ms->cParams;
uint * hashLarge = ms->hashTable;
uint hBitsL = cParams->hashLog;
uint mls = cParams->minMatch;
uint * hashSmall = ms->chainTable;
uint hBitsS = cParams->chainLog;
byte * @base = ms->window.@base;
byte * ip = @base + ms->nextToUpdate;
byte * iend = ((byte *)(end)) - 8;
uint fastHashFillStep = 3;
for (; ip + fastHashFillStep - 1 <= iend; ip += fastHashFillStep)
{
uint curr = (uint)(ip - @base);
uint i;
for (i = 0; i < fastHashFillStep; ++i)
{
nuint smHash = ZSTD_hashPtr((void *)(ip + i), hBitsS, mls);
nuint lgHash = ZSTD_hashPtr((void *)(ip + i), hBitsL, 8);
if (i == 0)
{
hashSmall[smHash] = curr + i;
}
if (i == 0 || hashLarge[lgHash] == 0)
{
hashLarge[lgHash] = curr + i;
}
if (dtlm == ZSTD_dictTableLoadMethod_e.ZSTD_dtlm_fast)
{
break;
}
}
}
}
