diff options
Diffstat (limited to 'thirdparty/zstd/compress/zstd_double_fast.c')
| -rw-r--r-- | thirdparty/zstd/compress/zstd_double_fast.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/thirdparty/zstd/compress/zstd_double_fast.c b/thirdparty/zstd/compress/zstd_double_fast.c index 5957255d90..54467cc31b 100644 --- a/thirdparty/zstd/compress/zstd_double_fast.c +++ b/thirdparty/zstd/compress/zstd_double_fast.c @@ -65,6 +65,7 @@ size_t ZSTD_compressBlock_doubleFast_generic( const U32 endIndex = (U32)((size_t)(istart - base) + srcSize); const U32 lowestValid = ms->window.dictLimit; const U32 maxDistance = 1U << cParams->windowLog; + /* presumes that, if there is a dictionary, it must be using Attach mode */ const U32 prefixLowestIndex = (endIndex - lowestValid > maxDistance) ? endIndex - maxDistance : lowestValid; const BYTE* const prefixLowest = base + prefixLowestIndex; const BYTE* const iend = istart + srcSize; @@ -369,9 +370,7 @@ static size_t ZSTD_compressBlock_doubleFast_extDict_generic( const BYTE* const ilimit = iend - 8; const BYTE* const base = ms->window.base; const U32 endIndex = (U32)((size_t)(istart - base) + srcSize); - const U32 maxDistance = 1U << cParams->windowLog; - const U32 lowestValid = ms->window.lowLimit; - const U32 lowLimit = (endIndex - lowestValid > maxDistance) ? endIndex - maxDistance : lowestValid; + const U32 lowLimit = ZSTD_getLowestMatchIndex(ms, endIndex, cParams->windowLog); const U32 dictStartIndex = lowLimit; const U32 dictLimit = ms->window.dictLimit; const U32 prefixStartIndex = (dictLimit > lowLimit) ? dictLimit : lowLimit; |