AuroraMiddleware/zstd
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

MaxLit

Browse Source
This commit is contained in:
inikep 2016-02-03 22:56:55 +01:00
parent a98149df59
commit 70b054559b
2 changed files with 16 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
lib/zstd_compress.c
View File

@ -88,10 +88,10 @@ typedef struct {
BYTE* matchLength;
BYTE* dumpsStart;
BYTE* dumps;
BYTE* matchLengthFreq;
BYTE* litLengthFreq;
BYTE* litFreq;
BYTE* offCodeFreq;
U32* matchLengthFreq;
U32* litLengthFreq;
U32* litFreq;
U32* offCodeFreq;
U32 matchLengthSum;
U32 litLengthSum;
U32 litSum;
@ -111,10 +111,14 @@ static void ZSTD_resetSeqStore(seqStore_t* ssPtr)
ssPtr->litSum = (1<<Litbits);
ssPtr->offCodeSum = (1<<Offbits);
memset(ssPtr->litFreq, 1, (1<<Litbits));
memset(ssPtr->litLengthFreq, 1, (1<<LLbits));
memset(ssPtr->matchLengthFreq, 1, (1<<MLbits));
memset(ssPtr->offCodeFreq, 1, (1<<Offbits));
for (int i=0; i<=MaxLit; i++)
ssPtr->litFreq[i] = 1;
for (int i=0; i<=MaxLL; i++)
ssPtr->litLengthFreq[i] = 1;
for (int i=0; i<=MaxML; i++)
ssPtr->matchLengthFreq[i] = 1;
for (int i=0; i<=MaxOff; i++)
ssPtr->offCodeFreq[i] = 1;
}
@ -202,7 +206,7 @@ static size_t ZSTD_resetCCtx_advanced (ZSTD_CCtx* zc,
/* reserve table memory */
const U32 contentLog = (params.strategy == ZSTD_fast) ? 1 : params.contentLog;
const size_t tableSpace = ((1 << contentLog) + (1 << params.hashLog)) * sizeof(U32);
const size_t neededSpace = tableSpace + (256*sizeof(U32)) + (3*blockSize) + (1<<MLbits) + (1<<LLbits) + (1<<Offbits) + (1<<Litbits);
const size_t neededSpace = tableSpace + (256*sizeof(U32)) + (3*blockSize) + ((1<<MLbits) + (1<<LLbits) + (1<<Offbits) + (1<<Litbits))*sizeof(U32);
if (zc->workSpaceSize < neededSpace) {
free(zc->workSpace);
zc->workSpace = malloc(neededSpace);
@ -231,11 +235,11 @@ static size_t ZSTD_resetCCtx_advanced (ZSTD_CCtx* zc,
zc->seqStore.litLengthStart = zc->seqStore.litStart + blockSize;
zc->seqStore.matchLengthStart = zc->seqStore.litLengthStart + (blockSize>>2);
zc->seqStore.dumpsStart = zc->seqStore.matchLengthStart + (blockSize>>2);
zc->seqStore.litFreq = zc->seqStore.dumpsStart + (blockSize>>2);
zc->seqStore.litFreq = (U32*) (zc->seqStore.dumpsStart + (blockSize>>2));
zc->seqStore.litLengthFreq = zc->seqStore.litFreq + (1<<Litbits);
zc->seqStore.matchLengthFreq = zc->seqStore.litLengthFreq + (1<<LLbits);
zc->seqStore.offCodeFreq = zc->seqStore.matchLengthFreq + (1<<MLbits);
// zc->seqStore.XXX = zc->seqStore.offCodeFreq + (1<<Offbits);
// zc->seqStore.XXX = zc->seqStore.offCodeFreq + (1<<Offbits)*sizeof(U32);
zc->hbSize = 0;
zc->stage = 0;

1
lib/zstd_internal.h
View File

@ -87,6 +87,7 @@ static const size_t ZSTD_frameHeaderSize_min = 5;
#define MLbits 7
#define LLbits 6
#define Offbits 5
#define MaxLit ((1<<Litbits) - 1)
#define MaxML ((1<<MLbits) - 1)
#define MaxLL ((1<<LLbits) - 1)
#define MaxOff ((1<<Offbits)- 1)