diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/lz4hc.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/lib/lz4hc.c b/lib/lz4hc.c index 2518300..d3cc831 100644 --- a/lib/lz4hc.c +++ b/lib/lz4hc.c @@ -261,10 +261,10 @@ FORCE_INLINE int LZ4HC_encodeSequence ( const BYTE** anchor, int matchLength, const BYTE* const match, - limitedOutput_directive limitedOutputBuffer, + limitedOutput_directive limit, BYTE* oend) { - int length; + size_t length; BYTE* token; #if LZ4HC_DEBUG @@ -272,11 +272,18 @@ FORCE_INLINE int LZ4HC_encodeSequence ( #endif /* Encode Literal length */ - length = (int)(*ip - *anchor); + length = (size_t)(*ip - *anchor); token = (*op)++; - if ((limitedOutputBuffer) && ((*op + (length>>8) + length + (2 + 1 + LASTLITERALS)) > oend)) return 1; /* Check output limit */ - if (length>=(int)RUN_MASK) { int len; *token=(RUN_MASK<<ML_BITS); len = length-RUN_MASK; for(; len > 254 ; len-=255) *(*op)++ = 255; *(*op)++ = (BYTE)len; } - else *token = (BYTE)(length<<ML_BITS); + if ((limit) && ((*op + (length >> 8) + length + (2 + 1 + LASTLITERALS)) > oend)) return 1; /* Check output limit */ + if (length >= RUN_MASK) { + size_t len; + *token = (RUN_MASK << ML_BITS); + len = length - RUN_MASK; + for(; len >= 255 ; len -= 255) *(*op)++ = 255; + *(*op)++ = (BYTE)len; + } else { + *token = (BYTE)(length << ML_BITS); + } /* Copy Literals */ LZ4_wildCopy(*op, *anchor, (*op) + length); @@ -286,13 +293,13 @@ FORCE_INLINE int LZ4HC_encodeSequence ( LZ4_writeLE16(*op, (U16)(*ip-match)); *op += 2; /* Encode MatchLength */ - length = (int)(matchLength-MINMATCH); - if ((limitedOutputBuffer) && (*op + (length>>8) + (1 + LASTLITERALS) > oend)) return 1; /* Check output limit */ - if (length>=(int)ML_MASK) { + length = (size_t)(matchLength - MINMATCH); + if ((limit) && (*op + (length >> 8) + (1 + LASTLITERALS) > oend)) return 1; /* Check output limit */ + if (length >= ML_MASK) { *token += ML_MASK; length -= ML_MASK; - for(; length > 509 ; length-=510) { *(*op)++ = 255; *(*op)++ = 255; } - if (length > 254) { length-=255; *(*op)++ = 255; } + for(; length >= 510 ; length -= 510) { *(*op)++ = 255; *(*op)++ = 255; } + if (length >= 255) { length -= 255; *(*op)++ = 255; } *(*op)++ = (BYTE)length; } else { *token += (BYTE)(length); |