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This commit is contained in:
Igor Pavlov
2016-05-20 00:00:00 +00:00
committed by Kornel Lesiński
parent 66ac98bb02
commit bec3b479dc
88 changed files with 972 additions and 753 deletions
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39
C/LzmaEnc.c
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@@ -1,5 +1,5 @@
/* LzmaEnc.c -- LZMA Encoder
2015-11-08 : Igor Pavlov : Public domain */
2016-05-16 : Igor Pavlov : Public domain */
#include "Precomp.h"
@@ -108,7 +108,7 @@ UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
#define kDicLogSizeMaxCompress 32
#define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); }
#define BSR2_RET(pos, res) { unsigned long zz; _BitScanReverse(&zz, (pos)); res = (zz + zz) + ((pos >> (zz - 1)) & 1); }
static UInt32 GetPosSlot1(UInt32 pos)
{
@@ -145,19 +145,19 @@ static void LzmaEnc_FastPosInit(Byte *g_FastPos)
/* we can use ((limit - pos) >> 31) only if (pos < ((UInt32)1 << 31)) */
/*
#define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \
#define BSR2_RET(pos, res) { UInt32 zz = 6 + ((kNumLogBits - 1) & \
(0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \
res = p->g_FastPos[pos >> i] + (i * 2); }
res = p->g_FastPos[pos >> zz] + (zz * 2); }
*/
/*
#define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \
#define BSR2_RET(pos, res) { UInt32 zz = 6 + ((kNumLogBits - 1) & \
(0 - (((((UInt32)1 << (kNumLogBits)) - 1) - (pos >> 6)) >> 31))); \
res = p->g_FastPos[pos >> i] + (i * 2); }
res = p->g_FastPos[pos >> zz] + (zz * 2); }
*/
#define BSR2_RET(pos, res) { UInt32 i = (pos < (1 << (kNumLogBits + 6))) ? 6 : 6 + kNumLogBits - 1; \
res = p->g_FastPos[pos >> i] + (i * 2); }
#define BSR2_RET(pos, res) { UInt32 zz = (pos < (1 << (kNumLogBits + 6))) ? 6 : 6 + kNumLogBits - 1; \
res = p->g_FastPos[pos >> zz] + (zz * 2); }
/*
#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \
@@ -983,12 +983,17 @@ static UInt32 Backward(CLzmaEnc *p, UInt32 *backRes, UInt32 cur)
static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
{
UInt32 numAvail, mainLen, numPairs, repMaxIndex, i, posState, lenEnd, len, cur;
UInt32 matchPrice, repMatchPrice, normalMatchPrice;
UInt32 lenEnd, cur;
UInt32 reps[LZMA_NUM_REPS], repLens[LZMA_NUM_REPS];
UInt32 *matches;
{
UInt32 numAvail, mainLen, numPairs, repMaxIndex, i, posState, len;
UInt32 matchPrice, repMatchPrice, normalMatchPrice;
const Byte *data;
Byte curByte, matchByte;
if (p->optimumEndIndex != p->optimumCurrentIndex)
{
const COptimal *opt = &p->opt[p->optimumCurrentIndex];
@@ -1176,8 +1181,11 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
}
#endif
}
for (;;)
{
UInt32 numAvail;
UInt32 numAvailFull, newLen, numPairs, posPrev, state, posState, startLen;
UInt32 curPrice, curAnd1Price, matchPrice, repMatchPrice;
Bool nextIsChar;
@@ -1465,6 +1473,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
for (lenTest = /*2*/ startLen; ; lenTest++)
{
UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][lenTest - LZMA_MATCH_LEN_MIN];
{
UInt32 lenToPosState = GetLenToPosState(lenTest);
COptimal *opt;
if (curBack < kNumFullDistances)
@@ -1480,6 +1489,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
opt->backPrev = curBack + LZMA_NUM_REPS;
opt->prev1IsChar = False;
}
}
if (/*_maxMode && */lenTest == matches[offs])
{
@@ -1509,15 +1519,15 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
/* for (; lenTest2 >= 2; lenTest2--) */
{
UInt32 offset = cur + lenTest + 1 + lenTest2;
UInt32 curAndLenPrice;
UInt32 curAndLenPrice2;
COptimal *opt;
while (lenEnd < offset)
p->opt[++lenEnd].price = kInfinityPrice;
curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
curAndLenPrice2 = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
opt = &p->opt[offset];
if (curAndLenPrice < opt->price)
if (curAndLenPrice2 < opt->price)
{
opt->price = curAndLenPrice;
opt->price = curAndLenPrice2;
opt->posPrev = cur + lenTest + 1;
opt->backPrev = 0;
opt->prev1IsChar = True;
@@ -1718,7 +1728,6 @@ static void FillDistancesPrices(CLzmaEnc *p)
{
UInt32 *distancesPrices = p->distancesPrices[lenToPosState];
UInt32 i;
for (i = 0; i < kStartPosModelIndex; i++)
distancesPrices[i] = posSlotPrices[i];
for (; i < kNumFullDistances; i++)