ddidderr/zstd-rs
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minor compression speed improvement

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This commit is contained in:
Yann Collet
2016-01-28 17:56:33 +01:00
parent 9cadd0853c
commit 863ec40f1e
4 changed files with 66 additions and 110 deletions
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lib/fse.c
+3 -6
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@@ -1052,8 +1052,7 @@ size_t FSE_buildDTable_raw (FSE_DTable* dt, unsigned nbBits)
/* Build Decoding Table */
DTableH->tableLog = (U16)nbBits;
DTableH->fastMode = 1;
for (s=0; s<=maxSymbolValue; s++)
{
for (s=0; s<=maxSymbolValue; s++) {
dinfo[s].newState = 0;
dinfo[s].symbol = (BYTE)s;
dinfo[s].nbBits = (BYTE)nbBits;
@@ -1087,8 +1086,7 @@ FORCE_INLINE size_t FSE_decompress_usingDTable_generic(
#define FSE_GETSYMBOL(statePtr) fast ? FSE_decodeSymbolFast(statePtr, &bitD) : FSE_decodeSymbol(statePtr, &bitD)
/* 4 symbols per loop */
for ( ; (BIT_reloadDStream(&bitD)==BIT_DStream_unfinished) && (op<olimit) ; op+=4)
{
for ( ; (BIT_reloadDStream(&bitD)==BIT_DStream_unfinished) && (op<olimit) ; op+=4) {
op[0] = FSE_GETSYMBOL(&state1);
if (FSE_MAX_TABLELOG*2+7 > sizeof(bitD.bitContainer)*8) /* This test must be static */
@@ -1109,8 +1107,7 @@ FORCE_INLINE size_t FSE_decompress_usingDTable_generic(
/* tail */
/* note : BIT_reloadDStream(&bitD) >= FSE_DStream_partiallyFilled; Ends at exactly BIT_DStream_completed */
while (1)
{
while (1) {
if ( (BIT_reloadDStream(&bitD)>BIT_DStream_completed) || (op==omax) || (BIT_endOfDStream(&bitD) && (fast || FSE_endOfDState(&state1))) )
break;