diff options
Diffstat (limited to 'src/libs/7zip/unix/C/Lzma2Enc.c')
| -rw-r--r-- | src/libs/7zip/unix/C/Lzma2Enc.c | 40 |
1 files changed, 28 insertions, 12 deletions
diff --git a/src/libs/7zip/unix/C/Lzma2Enc.c b/src/libs/7zip/unix/C/Lzma2Enc.c index e97597f63..5d67cc344 100644 --- a/src/libs/7zip/unix/C/Lzma2Enc.c +++ b/src/libs/7zip/unix/C/Lzma2Enc.c @@ -1,5 +1,7 @@ /* Lzma2Enc.c -- LZMA2 Encoder -2010-09-24 : Igor Pavlov : Public domain */ +2012-06-19 : Igor Pavlov : Public domain */ + +#include "Precomp.h" /* #include <stdio.h> */ #include <string.h> @@ -83,11 +85,11 @@ static SRes Lzma2EncInt_EncodeSubblock(CLzma2EncInt *p, Byte *outBuf, if (packSize < lzHeaderSize) return SZ_ERROR_OUTPUT_EOF; packSize -= lzHeaderSize; - + LzmaEnc_SaveState(p->enc); res = LzmaEnc_CodeOneMemBlock(p->enc, p->needInitState, outBuf + lzHeaderSize, &packSize, LZMA2_PACK_SIZE_MAX, &unpackSize); - + PRF(printf("\npackSize = %7d unpackSize = %7d ", packSize, unpackSize)); if (unpackSize == 0) @@ -146,10 +148,10 @@ static SRes Lzma2EncInt_EncodeSubblock(CLzma2EncInt *p, Byte *outBuf, outBuf[destPos++] = (Byte)u; outBuf[destPos++] = (Byte)(pm >> 8); outBuf[destPos++] = (Byte)pm; - + if (p->needInitProp) outBuf[destPos++] = p->props; - + p->needInitProp = False; p->needInitState = False; destPos += packSize; @@ -216,8 +218,7 @@ void Lzma2EncProps_Normalize(CLzma2EncProps *p) t3 = t1n * t2; p->lzmaProps.numThreads = t1; - p->numBlockThreads = t2; - p->numTotalThreads = t3; + LzmaEncProps_Normalize(&p->lzmaProps); if (p->blockSize == 0) @@ -231,6 +232,21 @@ void Lzma2EncProps_Normalize(CLzma2EncProps *p) if (blockSize < dictSize) blockSize = dictSize; p->blockSize = (size_t)blockSize; } + if (t2 > 1) + { + UInt64 temp = p->lzmaProps.reduceSize + p->blockSize - 1; + if (temp > p->lzmaProps.reduceSize) + { + UInt64 numBlocks = temp / p->blockSize; + if (numBlocks < t2) + { + t2 = (UInt32)numBlocks; + t3 = t1 * t2; + } + } + } + p->numBlockThreads = t2; + p->numTotalThreads = t3; } static SRes Progress(ICompressProgress *p, UInt64 inSize, UInt64 outSize) @@ -244,7 +260,7 @@ typedef struct { Byte propEncoded; CLzma2EncProps props; - + Byte *outBuf; ISzAlloc *alloc; @@ -322,10 +338,10 @@ static SRes MtCallbackImp_Code(void *pp, unsigned index, Byte *dest, size_t *des if (srcSize != 0) { RINOK(Lzma2EncInt_Init(p, &mainEncoder->props)); - + RINOK(LzmaEnc_MemPrepare(p->enc, src, srcSize, LZMA2_KEEP_WINDOW_SIZE, mainEncoder->alloc, mainEncoder->allocBig)); - + while (p->srcPos < srcSize) { size_t packSize = destLim - *destSize; @@ -460,7 +476,7 @@ SRes Lzma2Enc_Encode(CLzma2EncHandle pp, mtCallback.funcTable.Code = MtCallbackImp_Code; mtCallback.lzma2Enc = p; - + p->mtCoder.progress = progress; p->mtCoder.inStream = inStream; p->mtCoder.outStream = outStream; @@ -470,7 +486,7 @@ SRes Lzma2Enc_Encode(CLzma2EncHandle pp, p->mtCoder.blockSize = p->props.blockSize; p->mtCoder.destBlockSize = p->props.blockSize + (p->props.blockSize >> 10) + 16; p->mtCoder.numThreads = p->props.numBlockThreads; - + return MtCoder_Code(&p->mtCoder); } #endif |