diff options
Diffstat (limited to 'lib/lz4.c')
-rw-r--r-- | lib/lz4.c | 29 |
1 files changed, 15 insertions, 14 deletions
@@ -1408,18 +1408,18 @@ int LZ4_loadDict (LZ4_stream_t* LZ4_dict, const char* dictionary, int dictSize) * there are only valid offsets in the window, which allows an optimization * in LZ4_compress_fast_continue() where it uses noDictIssue even when the * dictionary isn't a full 64k. */ - - if ((dictEnd - p) > 64 KB) p = dictEnd - 64 KB; - base = dictEnd - 64 KB - dict->currentOffset; - dict->dictionary = p; - dict->dictSize = (U32)(dictEnd - p); dict->currentOffset += 64 KB; - dict->tableType = tableType; if (dictSize < (int)HASH_UNIT) { return 0; } + if ((dictEnd - p) > 64 KB) p = dictEnd - 64 KB; + base = dictEnd - dict->currentOffset; + dict->dictionary = p; + dict->dictSize = (U32)(dictEnd - p); + dict->tableType = tableType; + while (p <= dictEnd-HASH_UNIT) { LZ4_putPosition(p, dict->hashTable, tableType, base); p+=3; @@ -1435,15 +1435,16 @@ void LZ4_attach_dictionary(LZ4_stream_t* workingStream, const LZ4_stream_t* dict */ LZ4_resetStream_fast(workingStream); + /* If the current offset is zero, we will never look in the + * external dictionary context, since there is no value a table + * entry can take that indicate a miss. In that case, we need + * to bump the offset to something non-zero. + */ + if (workingStream->internal_donotuse.currentOffset == 0) { + workingStream->internal_donotuse.currentOffset = 64 KB; + } + if (dictionaryStream != NULL && dictionaryStream->internal_donotuse.dictSize > 0) { - /* If the current offset is zero, we will never look in the - * external dictionary context, since there is no value a table - * entry can take that indicate a miss. In that case, we need - * to bump the offset to something non-zero. - */ - if (workingStream->internal_donotuse.currentOffset == 0) { - workingStream->internal_donotuse.currentOffset = 64 KB; - } workingStream->internal_donotuse.dictCtx = &(dictionaryStream->internal_donotuse); } else { workingStream->internal_donotuse.dictCtx = NULL; |