diff options
Diffstat (limited to '')
| -rw-r--r-- | other-licenses/7zstub/src/C/Lzma2Enc.c | 803 |
1 files changed, 803 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/C/Lzma2Enc.c b/other-licenses/7zstub/src/C/Lzma2Enc.c new file mode 100644 index 0000000000..5098195c12 --- /dev/null +++ b/other-licenses/7zstub/src/C/Lzma2Enc.c @@ -0,0 +1,803 @@ +/* Lzma2Enc.c -- LZMA2 Encoder
+2018-04-27 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
+
+#include <string.h>
+
+/* #define _7ZIP_ST */
+
+#include "Lzma2Enc.h"
+
+#ifndef _7ZIP_ST
+#include "MtCoder.h"
+#else
+#define MTCODER__THREADS_MAX 1
+#endif
+
+#define LZMA2_CONTROL_LZMA (1 << 7)
+#define LZMA2_CONTROL_COPY_NO_RESET 2
+#define LZMA2_CONTROL_COPY_RESET_DIC 1
+#define LZMA2_CONTROL_EOF 0
+
+#define LZMA2_LCLP_MAX 4
+
+#define LZMA2_DIC_SIZE_FROM_PROP(p) (((UInt32)2 | ((p) & 1)) << ((p) / 2 + 11))
+
+#define LZMA2_PACK_SIZE_MAX (1 << 16)
+#define LZMA2_COPY_CHUNK_SIZE LZMA2_PACK_SIZE_MAX
+#define LZMA2_UNPACK_SIZE_MAX (1 << 21)
+#define LZMA2_KEEP_WINDOW_SIZE LZMA2_UNPACK_SIZE_MAX
+
+#define LZMA2_CHUNK_SIZE_COMPRESSED_MAX ((1 << 16) + 16)
+
+
+#define PRF(x) /* x */
+
+
+/* ---------- CLimitedSeqInStream ---------- */
+
+typedef struct
+{
+ ISeqInStream vt;
+ ISeqInStream *realStream;
+ UInt64 limit;
+ UInt64 processed;
+ int finished;
+} CLimitedSeqInStream;
+
+static void LimitedSeqInStream_Init(CLimitedSeqInStream *p)
+{
+ p->limit = (UInt64)(Int64)-1;
+ p->processed = 0;
+ p->finished = 0;
+}
+
+static SRes LimitedSeqInStream_Read(const ISeqInStream *pp, void *data, size_t *size)
+{
+ CLimitedSeqInStream *p = CONTAINER_FROM_VTBL(pp, CLimitedSeqInStream, vt);
+ size_t size2 = *size;
+ SRes res = SZ_OK;
+
+ if (p->limit != (UInt64)(Int64)-1)
+ {
+ UInt64 rem = p->limit - p->processed;
+ if (size2 > rem)
+ size2 = (size_t)rem;
+ }
+ if (size2 != 0)
+ {
+ res = ISeqInStream_Read(p->realStream, data, &size2);
+ p->finished = (size2 == 0 ? 1 : 0);
+ p->processed += size2;
+ }
+ *size = size2;
+ return res;
+}
+
+
+/* ---------- CLzma2EncInt ---------- */
+
+typedef struct
+{
+ CLzmaEncHandle enc;
+ Byte propsAreSet;
+ Byte propsByte;
+ Byte needInitState;
+ Byte needInitProp;
+ UInt64 srcPos;
+} CLzma2EncInt;
+
+
+static SRes Lzma2EncInt_InitStream(CLzma2EncInt *p, const CLzma2EncProps *props)
+{
+ if (!p->propsAreSet)
+ {
+ SizeT propsSize = LZMA_PROPS_SIZE;
+ Byte propsEncoded[LZMA_PROPS_SIZE];
+ RINOK(LzmaEnc_SetProps(p->enc, &props->lzmaProps));
+ RINOK(LzmaEnc_WriteProperties(p->enc, propsEncoded, &propsSize));
+ p->propsByte = propsEncoded[0];
+ p->propsAreSet = True;
+ }
+ return SZ_OK;
+}
+
+static void Lzma2EncInt_InitBlock(CLzma2EncInt *p)
+{
+ p->srcPos = 0;
+ p->needInitState = True;
+ p->needInitProp = True;
+}
+
+
+SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, ISeqInStream *inStream, UInt32 keepWindowSize,
+ ISzAllocPtr alloc, ISzAllocPtr allocBig);
+SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
+ UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig);
+SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
+ Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize);
+const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp);
+void LzmaEnc_Finish(CLzmaEncHandle pp);
+void LzmaEnc_SaveState(CLzmaEncHandle pp);
+void LzmaEnc_RestoreState(CLzmaEncHandle pp);
+
+/*
+UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp);
+*/
+
+static SRes Lzma2EncInt_EncodeSubblock(CLzma2EncInt *p, Byte *outBuf,
+ size_t *packSizeRes, ISeqOutStream *outStream)
+{
+ size_t packSizeLimit = *packSizeRes;
+ size_t packSize = packSizeLimit;
+ UInt32 unpackSize = LZMA2_UNPACK_SIZE_MAX;
+ unsigned lzHeaderSize = 5 + (p->needInitProp ? 1 : 0);
+ Bool useCopyBlock;
+ SRes res;
+
+ *packSizeRes = 0;
+ 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)
+ return res;
+
+ if (res == SZ_OK)
+ useCopyBlock = (packSize + 2 >= unpackSize || packSize > (1 << 16));
+ else
+ {
+ if (res != SZ_ERROR_OUTPUT_EOF)
+ return res;
+ res = SZ_OK;
+ useCopyBlock = True;
+ }
+
+ if (useCopyBlock)
+ {
+ size_t destPos = 0;
+ PRF(printf("################# COPY "));
+
+ while (unpackSize > 0)
+ {
+ UInt32 u = (unpackSize < LZMA2_COPY_CHUNK_SIZE) ? unpackSize : LZMA2_COPY_CHUNK_SIZE;
+ if (packSizeLimit - destPos < u + 3)
+ return SZ_ERROR_OUTPUT_EOF;
+ outBuf[destPos++] = (Byte)(p->srcPos == 0 ? LZMA2_CONTROL_COPY_RESET_DIC : LZMA2_CONTROL_COPY_NO_RESET);
+ outBuf[destPos++] = (Byte)((u - 1) >> 8);
+ outBuf[destPos++] = (Byte)(u - 1);
+ memcpy(outBuf + destPos, LzmaEnc_GetCurBuf(p->enc) - unpackSize, u);
+ unpackSize -= u;
+ destPos += u;
+ p->srcPos += u;
+
+ if (outStream)
+ {
+ *packSizeRes += destPos;
+ if (ISeqOutStream_Write(outStream, outBuf, destPos) != destPos)
+ return SZ_ERROR_WRITE;
+ destPos = 0;
+ }
+ else
+ *packSizeRes = destPos;
+ /* needInitState = True; */
+ }
+
+ LzmaEnc_RestoreState(p->enc);
+ return SZ_OK;
+ }
+
+ {
+ size_t destPos = 0;
+ UInt32 u = unpackSize - 1;
+ UInt32 pm = (UInt32)(packSize - 1);
+ unsigned mode = (p->srcPos == 0) ? 3 : (p->needInitState ? (p->needInitProp ? 2 : 1) : 0);
+
+ PRF(printf(" "));
+
+ outBuf[destPos++] = (Byte)(LZMA2_CONTROL_LZMA | (mode << 5) | ((u >> 16) & 0x1F));
+ outBuf[destPos++] = (Byte)(u >> 8);
+ outBuf[destPos++] = (Byte)u;
+ outBuf[destPos++] = (Byte)(pm >> 8);
+ outBuf[destPos++] = (Byte)pm;
+
+ if (p->needInitProp)
+ outBuf[destPos++] = p->propsByte;
+
+ p->needInitProp = False;
+ p->needInitState = False;
+ destPos += packSize;
+ p->srcPos += unpackSize;
+
+ if (outStream)
+ if (ISeqOutStream_Write(outStream, outBuf, destPos) != destPos)
+ return SZ_ERROR_WRITE;
+
+ *packSizeRes = destPos;
+ return SZ_OK;
+ }
+}
+
+
+/* ---------- Lzma2 Props ---------- */
+
+void Lzma2EncProps_Init(CLzma2EncProps *p)
+{
+ LzmaEncProps_Init(&p->lzmaProps);
+ p->blockSize = LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO;
+ p->numBlockThreads_Reduced = -1;
+ p->numBlockThreads_Max = -1;
+ p->numTotalThreads = -1;
+}
+
+void Lzma2EncProps_Normalize(CLzma2EncProps *p)
+{
+ UInt64 fileSize;
+ int t1, t1n, t2, t2r, t3;
+ {
+ CLzmaEncProps lzmaProps = p->lzmaProps;
+ LzmaEncProps_Normalize(&lzmaProps);
+ t1n = lzmaProps.numThreads;
+ }
+
+ t1 = p->lzmaProps.numThreads;
+ t2 = p->numBlockThreads_Max;
+ t3 = p->numTotalThreads;
+
+ if (t2 > MTCODER__THREADS_MAX)
+ t2 = MTCODER__THREADS_MAX;
+
+ if (t3 <= 0)
+ {
+ if (t2 <= 0)
+ t2 = 1;
+ t3 = t1n * t2;
+ }
+ else if (t2 <= 0)
+ {
+ t2 = t3 / t1n;
+ if (t2 == 0)
+ {
+ t1 = 1;
+ t2 = t3;
+ }
+ if (t2 > MTCODER__THREADS_MAX)
+ t2 = MTCODER__THREADS_MAX;
+ }
+ else if (t1 <= 0)
+ {
+ t1 = t3 / t2;
+ if (t1 == 0)
+ t1 = 1;
+ }
+ else
+ t3 = t1n * t2;
+
+ p->lzmaProps.numThreads = t1;
+
+ t2r = t2;
+
+ fileSize = p->lzmaProps.reduceSize;
+
+ if ( p->blockSize != LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID
+ && p->blockSize != LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO
+ && (p->blockSize < fileSize || fileSize == (UInt64)(Int64)-1))
+ p->lzmaProps.reduceSize = p->blockSize;
+
+ LzmaEncProps_Normalize(&p->lzmaProps);
+
+ p->lzmaProps.reduceSize = fileSize;
+
+ t1 = p->lzmaProps.numThreads;
+
+ if (p->blockSize == LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID)
+ {
+ t2r = t2 = 1;
+ t3 = t1;
+ }
+ else if (p->blockSize == LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO && t2 <= 1)
+ {
+ /* if there is no block multi-threading, we use SOLID block */
+ p->blockSize = LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID;
+ }
+ else
+ {
+ if (p->blockSize == LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO)
+ {
+ const UInt32 kMinSize = (UInt32)1 << 20;
+ const UInt32 kMaxSize = (UInt32)1 << 28;
+ const UInt32 dictSize = p->lzmaProps.dictSize;
+ UInt64 blockSize = (UInt64)dictSize << 2;
+ if (blockSize < kMinSize) blockSize = kMinSize;
+ if (blockSize > kMaxSize) blockSize = kMaxSize;
+ if (blockSize < dictSize) blockSize = dictSize;
+ blockSize += (kMinSize - 1);
+ blockSize &= ~(UInt64)(kMinSize - 1);
+ p->blockSize = blockSize;
+ }
+
+ if (t2 > 1 && fileSize != (UInt64)(Int64)-1)
+ {
+ UInt64 numBlocks = fileSize / p->blockSize;
+ if (numBlocks * p->blockSize != fileSize)
+ numBlocks++;
+ if (numBlocks < (unsigned)t2)
+ {
+ t2r = (unsigned)numBlocks;
+ if (t2r == 0)
+ t2r = 1;
+ t3 = t1 * t2r;
+ }
+ }
+ }
+
+ p->numBlockThreads_Max = t2;
+ p->numBlockThreads_Reduced = t2r;
+ p->numTotalThreads = t3;
+}
+
+
+static SRes Progress(ICompressProgress *p, UInt64 inSize, UInt64 outSize)
+{
+ return (p && ICompressProgress_Progress(p, inSize, outSize) != SZ_OK) ? SZ_ERROR_PROGRESS : SZ_OK;
+}
+
+
+/* ---------- Lzma2 ---------- */
+
+typedef struct
+{
+ Byte propEncoded;
+ CLzma2EncProps props;
+ UInt64 expectedDataSize;
+
+ Byte *tempBufLzma;
+
+ ISzAllocPtr alloc;
+ ISzAllocPtr allocBig;
+
+ CLzma2EncInt coders[MTCODER__THREADS_MAX];
+
+ #ifndef _7ZIP_ST
+
+ ISeqOutStream *outStream;
+ Byte *outBuf;
+ size_t outBuf_Rem; /* remainder in outBuf */
+
+ size_t outBufSize; /* size of allocated outBufs[i] */
+ size_t outBufsDataSizes[MTCODER__BLOCKS_MAX];
+ Bool mtCoder_WasConstructed;
+ CMtCoder mtCoder;
+ Byte *outBufs[MTCODER__BLOCKS_MAX];
+
+ #endif
+
+} CLzma2Enc;
+
+
+
+CLzma2EncHandle Lzma2Enc_Create(ISzAllocPtr alloc, ISzAllocPtr allocBig)
+{
+ CLzma2Enc *p = (CLzma2Enc *)ISzAlloc_Alloc(alloc, sizeof(CLzma2Enc));
+ if (!p)
+ return NULL;
+ Lzma2EncProps_Init(&p->props);
+ Lzma2EncProps_Normalize(&p->props);
+ p->expectedDataSize = (UInt64)(Int64)-1;
+ p->tempBufLzma = NULL;
+ p->alloc = alloc;
+ p->allocBig = allocBig;
+ {
+ unsigned i;
+ for (i = 0; i < MTCODER__THREADS_MAX; i++)
+ p->coders[i].enc = NULL;
+ }
+
+ #ifndef _7ZIP_ST
+ p->mtCoder_WasConstructed = False;
+ {
+ unsigned i;
+ for (i = 0; i < MTCODER__BLOCKS_MAX; i++)
+ p->outBufs[i] = NULL;
+ p->outBufSize = 0;
+ }
+ #endif
+
+ return p;
+}
+
+
+#ifndef _7ZIP_ST
+
+static void Lzma2Enc_FreeOutBufs(CLzma2Enc *p)
+{
+ unsigned i;
+ for (i = 0; i < MTCODER__BLOCKS_MAX; i++)
+ if (p->outBufs[i])
+ {
+ ISzAlloc_Free(p->alloc, p->outBufs[i]);
+ p->outBufs[i] = NULL;
+ }
+ p->outBufSize = 0;
+}
+
+#endif
+
+
+void Lzma2Enc_Destroy(CLzma2EncHandle pp)
+{
+ CLzma2Enc *p = (CLzma2Enc *)pp;
+ unsigned i;
+ for (i = 0; i < MTCODER__THREADS_MAX; i++)
+ {
+ CLzma2EncInt *t = &p->coders[i];
+ if (t->enc)
+ {
+ LzmaEnc_Destroy(t->enc, p->alloc, p->allocBig);
+ t->enc = NULL;
+ }
+ }
+
+
+ #ifndef _7ZIP_ST
+ if (p->mtCoder_WasConstructed)
+ {
+ MtCoder_Destruct(&p->mtCoder);
+ p->mtCoder_WasConstructed = False;
+ }
+ Lzma2Enc_FreeOutBufs(p);
+ #endif
+
+ ISzAlloc_Free(p->alloc, p->tempBufLzma);
+ p->tempBufLzma = NULL;
+
+ ISzAlloc_Free(p->alloc, pp);
+}
+
+
+SRes Lzma2Enc_SetProps(CLzma2EncHandle pp, const CLzma2EncProps *props)
+{
+ CLzma2Enc *p = (CLzma2Enc *)pp;
+ CLzmaEncProps lzmaProps = props->lzmaProps;
+ LzmaEncProps_Normalize(&lzmaProps);
+ if (lzmaProps.lc + lzmaProps.lp > LZMA2_LCLP_MAX)
+ return SZ_ERROR_PARAM;
+ p->props = *props;
+ Lzma2EncProps_Normalize(&p->props);
+ return SZ_OK;
+}
+
+
+void Lzma2Enc_SetDataSize(CLzmaEncHandle pp, UInt64 expectedDataSiize)
+{
+ CLzma2Enc *p = (CLzma2Enc *)pp;
+ p->expectedDataSize = expectedDataSiize;
+}
+
+
+Byte Lzma2Enc_WriteProperties(CLzma2EncHandle pp)
+{
+ CLzma2Enc *p = (CLzma2Enc *)pp;
+ unsigned i;
+ UInt32 dicSize = LzmaEncProps_GetDictSize(&p->props.lzmaProps);
+ for (i = 0; i < 40; i++)
+ if (dicSize <= LZMA2_DIC_SIZE_FROM_PROP(i))
+ break;
+ return (Byte)i;
+}
+
+
+static SRes Lzma2Enc_EncodeMt1(
+ CLzma2Enc *me,
+ CLzma2EncInt *p,
+ ISeqOutStream *outStream,
+ Byte *outBuf, size_t *outBufSize,
+ ISeqInStream *inStream,
+ const Byte *inData, size_t inDataSize,
+ int finished,
+ ICompressProgress *progress)
+{
+ UInt64 unpackTotal = 0;
+ UInt64 packTotal = 0;
+ size_t outLim = 0;
+ CLimitedSeqInStream limitedInStream;
+
+ if (outBuf)
+ {
+ outLim = *outBufSize;
+ *outBufSize = 0;
+ }
+
+ if (!p->enc)
+ {
+ p->propsAreSet = False;
+ p->enc = LzmaEnc_Create(me->alloc);
+ if (!p->enc)
+ return SZ_ERROR_MEM;
+ }
+
+ limitedInStream.realStream = inStream;
+ if (inStream)
+ {
+ limitedInStream.vt.Read = LimitedSeqInStream_Read;
+ }
+
+ if (!outBuf)
+ {
+ // outStream version works only in one thread. So we use CLzma2Enc::tempBufLzma
+ if (!me->tempBufLzma)
+ {
+ me->tempBufLzma = (Byte *)ISzAlloc_Alloc(me->alloc, LZMA2_CHUNK_SIZE_COMPRESSED_MAX);
+ if (!me->tempBufLzma)
+ return SZ_ERROR_MEM;
+ }
+ }
+
+ RINOK(Lzma2EncInt_InitStream(p, &me->props));
+
+ for (;;)
+ {
+ SRes res = SZ_OK;
+ size_t inSizeCur = 0;
+
+ Lzma2EncInt_InitBlock(p);
+
+ LimitedSeqInStream_Init(&limitedInStream);
+ limitedInStream.limit = me->props.blockSize;
+
+ if (inStream)
+ {
+ UInt64 expected = (UInt64)(Int64)-1;
+ // inStream version works only in one thread. So we use CLzma2Enc::expectedDataSize
+ if (me->expectedDataSize != (UInt64)(Int64)-1
+ && me->expectedDataSize >= unpackTotal)
+ expected = me->expectedDataSize - unpackTotal;
+ if (me->props.blockSize != LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID
+ && expected > me->props.blockSize)
+ expected = (size_t)me->props.blockSize;
+
+ LzmaEnc_SetDataSize(p->enc, expected);
+
+ RINOK(LzmaEnc_PrepareForLzma2(p->enc,
+ &limitedInStream.vt,
+ LZMA2_KEEP_WINDOW_SIZE,
+ me->alloc,
+ me->allocBig));
+ }
+ else
+ {
+ inSizeCur = inDataSize - (size_t)unpackTotal;
+ if (me->props.blockSize != LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID
+ && inSizeCur > me->props.blockSize)
+ inSizeCur = (size_t)me->props.blockSize;
+
+ // LzmaEnc_SetDataSize(p->enc, inSizeCur);
+
+ RINOK(LzmaEnc_MemPrepare(p->enc,
+ inData + (size_t)unpackTotal, inSizeCur,
+ LZMA2_KEEP_WINDOW_SIZE,
+ me->alloc,
+ me->allocBig));
+ }
+
+ for (;;)
+ {
+ size_t packSize = LZMA2_CHUNK_SIZE_COMPRESSED_MAX;
+ if (outBuf)
+ packSize = outLim - (size_t)packTotal;
+
+ res = Lzma2EncInt_EncodeSubblock(p,
+ outBuf ? outBuf + (size_t)packTotal : me->tempBufLzma, &packSize,
+ outBuf ? NULL : outStream);
+
+ if (res != SZ_OK)
+ break;
+
+ packTotal += packSize;
+ if (outBuf)
+ *outBufSize = (size_t)packTotal;
+
+ res = Progress(progress, unpackTotal + p->srcPos, packTotal);
+ if (res != SZ_OK)
+ break;
+
+ /*
+ if (LzmaEnc_GetNumAvailableBytes(p->enc) == 0)
+ break;
+ */
+
+ if (packSize == 0)
+ break;
+ }
+
+ LzmaEnc_Finish(p->enc);
+
+ unpackTotal += p->srcPos;
+
+ RINOK(res);
+
+ if (p->srcPos != (inStream ? limitedInStream.processed : inSizeCur))
+ return SZ_ERROR_FAIL;
+
+ if (inStream ? limitedInStream.finished : (unpackTotal == inDataSize))
+ {
+ if (finished)
+ {
+ if (outBuf)
+ {
+ size_t destPos = *outBufSize;
+ if (destPos >= outLim)
+ return SZ_ERROR_OUTPUT_EOF;
+ outBuf[destPos] = 0;
+ *outBufSize = destPos + 1;
+ }
+ else
+ {
+ Byte b = 0;
+ if (ISeqOutStream_Write(outStream, &b, 1) != 1)
+ return SZ_ERROR_WRITE;
+ }
+ }
+ return SZ_OK;
+ }
+ }
+}
+
+
+
+#ifndef _7ZIP_ST
+
+static SRes Lzma2Enc_MtCallback_Code(void *pp, unsigned coderIndex, unsigned outBufIndex,
+ const Byte *src, size_t srcSize, int finished)
+{
+ CLzma2Enc *me = (CLzma2Enc *)pp;
+ size_t destSize = me->outBufSize;
+ SRes res;
+ CMtProgressThunk progressThunk;
+
+ Byte *dest = me->outBufs[outBufIndex];
+
+ me->outBufsDataSizes[outBufIndex] = 0;
+
+ if (!dest)
+ {
+ dest = (Byte *)ISzAlloc_Alloc(me->alloc, me->outBufSize);
+ if (!dest)
+ return SZ_ERROR_MEM;
+ me->outBufs[outBufIndex] = dest;
+ }
+
+ MtProgressThunk_CreateVTable(&progressThunk);
+ progressThunk.mtProgress = &me->mtCoder.mtProgress;
+ progressThunk.inSize = 0;
+ progressThunk.outSize = 0;
+
+ res = Lzma2Enc_EncodeMt1(me,
+ &me->coders[coderIndex],
+ NULL, dest, &destSize,
+ NULL, src, srcSize,
+ finished,
+ &progressThunk.vt);
+
+ me->outBufsDataSizes[outBufIndex] = destSize;
+
+ return res;
+}
+
+
+static SRes Lzma2Enc_MtCallback_Write(void *pp, unsigned outBufIndex)
+{
+ CLzma2Enc *me = (CLzma2Enc *)pp;
+ size_t size = me->outBufsDataSizes[outBufIndex];
+ const Byte *data = me->outBufs[outBufIndex];
+
+ if (me->outStream)
+ return ISeqOutStream_Write(me->outStream, data, size) == size ? SZ_OK : SZ_ERROR_WRITE;
+
+ if (size > me->outBuf_Rem)
+ return SZ_ERROR_OUTPUT_EOF;
+ memcpy(me->outBuf, data, size);
+ me->outBuf_Rem -= size;
+ me->outBuf += size;
+ return SZ_OK;
+}
+
+#endif
+
+
+
+SRes Lzma2Enc_Encode2(CLzma2EncHandle pp,
+ ISeqOutStream *outStream,
+ Byte *outBuf, size_t *outBufSize,
+ ISeqInStream *inStream,
+ const Byte *inData, size_t inDataSize,
+ ICompressProgress *progress)
+{
+ CLzma2Enc *p = (CLzma2Enc *)pp;
+
+ if (inStream && inData)
+ return SZ_ERROR_PARAM;
+
+ if (outStream && outBuf)
+ return SZ_ERROR_PARAM;
+
+ {
+ unsigned i;
+ for (i = 0; i < MTCODER__THREADS_MAX; i++)
+ p->coders[i].propsAreSet = False;
+ }
+
+ #ifndef _7ZIP_ST
+
+ if (p->props.numBlockThreads_Reduced > 1)
+ {
+ IMtCoderCallback2 vt;
+
+ if (!p->mtCoder_WasConstructed)
+ {
+ p->mtCoder_WasConstructed = True;
+ MtCoder_Construct(&p->mtCoder);
+ }
+
+ vt.Code = Lzma2Enc_MtCallback_Code;
+ vt.Write = Lzma2Enc_MtCallback_Write;
+
+ p->outStream = outStream;
+ p->outBuf = NULL;
+ p->outBuf_Rem = 0;
+ if (!outStream)
+ {
+ p->outBuf = outBuf;
+ p->outBuf_Rem = *outBufSize;
+ *outBufSize = 0;
+ }
+
+ p->mtCoder.allocBig = p->allocBig;
+ p->mtCoder.progress = progress;
+ p->mtCoder.inStream = inStream;
+ p->mtCoder.inData = inData;
+ p->mtCoder.inDataSize = inDataSize;
+ p->mtCoder.mtCallback = &vt;
+ p->mtCoder.mtCallbackObject = p;
+
+ p->mtCoder.blockSize = (size_t)p->props.blockSize;
+ if (p->mtCoder.blockSize != p->props.blockSize)
+ return SZ_ERROR_PARAM; /* SZ_ERROR_MEM */
+
+ {
+ size_t destBlockSize = p->mtCoder.blockSize + (p->mtCoder.blockSize >> 10) + 16;
+ if (destBlockSize < p->mtCoder.blockSize)
+ return SZ_ERROR_PARAM;
+ if (p->outBufSize != destBlockSize)
+ Lzma2Enc_FreeOutBufs(p);
+ p->outBufSize = destBlockSize;
+ }
+
+ p->mtCoder.numThreadsMax = p->props.numBlockThreads_Max;
+ p->mtCoder.expectedDataSize = p->expectedDataSize;
+
+ {
+ SRes res = MtCoder_Code(&p->mtCoder);
+ if (!outStream)
+ *outBufSize = p->outBuf - outBuf;
+ return res;
+ }
+ }
+
+ #endif
+
+
+ return Lzma2Enc_EncodeMt1(p,
+ &p->coders[0],
+ outStream, outBuf, outBufSize,
+ inStream, inData, inDataSize,
+ True, /* finished */
+ progress);
+}
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