ddidderr/zstd-rs
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Added Wcast-qual compilation flag

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Updated xxHash
Removed log traces
This commit is contained in:
Yann Collet
2015-06-20 19:37:53 -08:00
parent fc774d31d1
commit 078a9a2804
3 changed files with 23 additions and 30 deletions
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lib/zstd.c
+15 -17
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@@ -178,11 +178,11 @@ static unsigned ZSTD_isLittleEndian(void)
return one.c[0];
}
static U16 ZSTD_read16(const void* p) { return *(U16*)p; }
static U16 ZSTD_read16(const void* p) { return *(const U16*)p; }
static U32 ZSTD_read32(const void* p) { return *(U32*)p; }
static U32 ZSTD_read32(const void* p) { return *(const U32*)p; }
static size_t ZSTD_read_ARCH(const void* p) { return *(size_t*)p; }
static size_t ZSTD_read_ARCH(const void* p) { return *(const size_t*)p; }
static void ZSTD_copy4(void* dst, const void* src) { memcpy(dst, src, 4); }
@@ -503,7 +503,7 @@ static size_t ZSTD_compressRle (void* dst, size_t maxDstSize, const void* src, s
/* at this stage : dstSize >= FSE_compressBound(srcSize) > (ZSTD_blockHeaderSize+1) (checked by ZSTD_compressLiterals()) */
(void)maxDstSize;
ostart[ZSTD_blockHeaderSize] = *(BYTE*)src;
ostart[ZSTD_blockHeaderSize] = *(const BYTE*)src;
/* Build header */
ostart[0] = (BYTE)(srcSize>>16);
@@ -621,9 +621,7 @@ static size_t ZSTD_compressLiterals (void* dst, size_t dstSize,
errorCode = FSE_count (count, ip, srcSize, &maxSymbolValue);
if (FSE_isError(errorCode)) return (size_t)-ZSTD_ERROR_GENERIC;
if (errorCode == srcSize) return 1;
//if (errorCode < ((srcSize * 7) >> 10)) return 0;
//if (errorCode < (srcSize >> 7)) return 0;
if (errorCode < (srcSize >> 6)) return 0; /* heuristic : probably not compressible enough */
if (errorCode < (srcSize >> 6)) return 0; /* cheap heuristic : probably not compressible enough */
tableLog = FSE_optimalTableLog(tableLog, srcSize, maxSymbolValue);
errorCode = (int)FSE_normalizeCount (norm, tableLog, count, srcSize, maxSymbolValue);
@@ -915,7 +913,7 @@ static const U64 prime7bytes = 58295818150454627ULL;
//static U32 ZSTD_hashPtr(const void* p) { return ( ((*(U64*)p & 0xFFFFFFFFFFFFFF) * prime7bytes) >> (64-HASH_LOG)); }
//static U32 ZSTD_hashPtr(const void* p) { return ( (*(U64*)p * prime8bytes) >> (64-HASH_LOG)); }
static U32 ZSTD_hashPtr(const void* p) { return ( (*(U64*)p * prime7bytes) >> (56-HASH_LOG)) & HASH_MASK; }
static U32 ZSTD_hashPtr(const void* p) { return ( (*(const U64*)p * prime7bytes) >> (56-HASH_LOG)) & HASH_MASK; }
//static U32 ZSTD_hashPtr(const void* p) { return ( (*(U64*)p * prime6bytes) >> (48-HASH_LOG)) & HASH_MASK; }
//static U32 ZSTD_hashPtr(const void* p) { return ( (*(U64*)p * prime5bytes) >> (40-HASH_LOG)) & HASH_MASK; }
//static U32 ZSTD_hashPtr(const void* p) { return ( (*(U32*)p * KNUTH) >> (32-HASH_LOG)); }
@@ -961,7 +959,7 @@ static size_t ZSTD_compressBlock(void* cctx, void* dst, size_t maxDstSize, const
/* Main Search Loop */
while (ip < ilimit)
{
const BYTE* match = (BYTE*) ZSTD_updateMatch(HashTable, ip, base);
const BYTE* match = (const BYTE*) ZSTD_updateMatch(HashTable, ip, base);
if (!ZSTD_checkMatch(match,ip)) { ip += ((ip-anchor) >> g_searchStrength) + 1; continue; }
@@ -1367,9 +1365,9 @@ size_t ZSTD_decodeLiteralsBlock(void* ctx,
}
case bt_compressed:
{
size_t cSize = ZSTD_decompressLiterals(ctx, dst, maxDstSize, ip, litcSize);
if (ZSTD_isError(cSize)) return cSize;
*litPtr = oend - cSize;
size_t litSize = ZSTD_decompressLiterals(ctx, dst, maxDstSize, ip, litcSize);
if (ZSTD_isError(litSize)) return litSize;
*litPtr = oend - litSize;
ip += litcSize;
break;
}
@@ -1508,7 +1506,7 @@ FORCE_INLINE size_t ZSTD_decompressBlock(void* ctx, void* dst, size_t maxDstSize
ip, iend-ip);
if (ZSTD_isError(errorCode)) return errorCode;
/* end pos */
if ((litPtr>=ostart) && (litPtr<=oend))
if ((litPtr>=ostart) && (litPtr<=oend)) /* decoded literals are into dst buffer */
litEnd = oend - lastLLSize;
else
litEnd = ip - lastLLSize;
@@ -1519,7 +1517,6 @@ FORCE_INLINE size_t ZSTD_decompressBlock(void* ctx, void* dst, size_t maxDstSize
FSE_DStream_t DStream;
FSE_DState_t stateLL, stateOffb, stateML;
size_t prevOffset = 0, offset = 0;
size_t qutt=0;
FSE_initDStream(&DStream, ip, iend-ip);
FSE_initDState(&stateLL, &DStream, DTableLL);
@@ -1545,7 +1542,6 @@ _another_round:
if (add < 255) litLength += add;
else
{
//litLength = (*(U32*)dumps) & 0xFFFFFF;
litLength = ZSTD_readLE32(dumps) & 0xFFFFFF;
dumps += 3;
}
@@ -1578,7 +1574,7 @@ _another_round:
if (add < 255) matchLength += add;
else
{
matchLength = ZSTD_readLE32(dumps) & 0xFFFFFF;
matchLength = ZSTD_readLE32(dumps) & 0xFFFFFF; /* no pb : dumps is always followed by seq tables > 1 byte */
dumps += 3;
}
}
@@ -1587,8 +1583,10 @@ _another_round:
/* copy Match */
{
BYTE* const endMatch = op + matchLength;
size_t qutt=0;
U64 saved[2];
/* save beginning of literal sequence, in case of write overlap */
if ((size_t)(litPtr - endMatch) < 12)
{
qutt = endMatch + 12 - litPtr;
@@ -1624,7 +1622,7 @@ _another_round:
op = endMatch;
if ((size_t)(litPtr - endMatch) < 12)
memcpy((void*)litPtr, saved, qutt);
memcpy(endMatch + (litPtr - endMatch), saved, qutt); /* required as litPtr is const ptr */
}
}