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ZSTD_compressBlock() limits block size depending on windowLog parameter

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This commit is contained in:
Yann Collet
2016-07-15 11:58:49 +02:00
parent 227cc39e15
commit 961b6a0e34
3 changed files with 11 additions and 9 deletions
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lib/dictBuilder/zdict.c
+4 -3
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@@ -581,13 +581,14 @@ typedef struct
#define MAXREPOFFSET 1024
static void ZDICT_countEStats(EStats_ress_t esr,
static void ZDICT_countEStats(EStats_ress_t esr, ZSTD_parameters params,
U32* countLit, U32* offsetcodeCount, U32* matchlengthCount, U32* litlengthCount, U32* repOffsets,
const void* src, size_t srcSize)
{
size_t const blockSizeMax = MIN (ZSTD_BLOCKSIZE_MAX, 1 << params.cParams.windowLog);
size_t cSize;
if (srcSize > ZSTD_BLOCKSIZE_MAX) srcSize = ZSTD_BLOCKSIZE_MAX; /* protection vs large samples */
if (srcSize > blockSizeMax) srcSize = blockSizeMax; /* protection vs large samples */
{ size_t const errorCode = ZSTD_copyCCtx(esr.zc, esr.ref);
if (ZSTD_isError(errorCode)) { DISPLAYLEVEL(1, "warning : ZSTD_copyCCtx failed \n"); return; }
}
@@ -721,7 +722,7 @@ static size_t ZDICT_analyzeEntropy(void* dstBuffer, size_t maxDstSize,
/* collect stats on all files */
for (u=0; u<nbFiles; u++) {
ZDICT_countEStats(esr,
ZDICT_countEStats(esr, params,
countLit, offcodeCount, matchLengthCount, litLengthCount, repOffset,
(const char*)srcBuffer + pos, fileSizes[u]);
pos += fileSizes[u];