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kunlun/mfgtool/lzma/XzEnc.c

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初始提交
2024-09-28 14:24:04 +08:00
/* XzEnc.c -- Xz Encode
2017-08-25 : Igor Pavlov : Public domain */
#include "Precomp.h"
#include <stdlib.h>
#include <string.h>
#include "7zCrc.h"
#include "Bra.h"
#include "CpuArch.h"
#ifdef USE_SUBBLOCK
#include "Bcj3Enc.c"
#include "SbFind.c"
#include "SbEnc.c"
#endif
#include "XzEnc.h"
// #define _7ZIP_ST
#ifndef _7ZIP_ST
#include "MtCoder.h"
#else
#define MTCODER__THREADS_MAX 1
#define MTCODER__BLOCKS_MAX 1
#endif
#define XZ_GET_PAD_SIZE(dataSize) ((4 - ((unsigned)(dataSize) & 3)) & 3)
/* max pack size for LZMA2 block + check-64bytrs: */
#define XZ_GET_MAX_BLOCK_PACK_SIZE(unpackSize) ((unpackSize) + ((unpackSize) >> 10) + 16 + 64)
#define XZ_GET_ESTIMATED_BLOCK_TOTAL_PACK_SIZE(unpackSize) (XZ_BLOCK_HEADER_SIZE_MAX + XZ_GET_MAX_BLOCK_PACK_SIZE(unpackSize))
#define XzBlock_ClearFlags(p) (p)->flags = 0;
#define XzBlock_SetNumFilters(p, n) (p)->flags |= ((n) - 1);
#define XzBlock_SetHasPackSize(p) (p)->flags |= XZ_BF_PACK_SIZE;
#define XzBlock_SetHasUnpackSize(p) (p)->flags |= XZ_BF_UNPACK_SIZE;
static SRes WriteBytes(ISeqOutStream *s, const void *buf, size_t size)
{
return (ISeqOutStream_Write(s, buf, size) == size) ? SZ_OK : SZ_ERROR_WRITE;
}
static SRes WriteBytesUpdateCrc(ISeqOutStream *s, const void *buf, size_t size, UInt32 *crc)
{
*crc = CrcUpdate(*crc, buf, size);
return WriteBytes(s, buf, size);
}
static SRes Xz_WriteHeader(CXzStreamFlags f, ISeqOutStream *s)
{
UInt32 crc;
Byte header[XZ_STREAM_HEADER_SIZE];
memcpy(header, XZ_SIG, XZ_SIG_SIZE);
header[XZ_SIG_SIZE] = (Byte)(f >> 8);
header[XZ_SIG_SIZE + 1] = (Byte)(f & 0xFF);
crc = CrcCalc(header + XZ_SIG_SIZE, XZ_STREAM_FLAGS_SIZE);
SetUi32(header + XZ_SIG_SIZE + XZ_STREAM_FLAGS_SIZE, crc);
return WriteBytes(s, header, XZ_STREAM_HEADER_SIZE);
}
static SRes XzBlock_WriteHeader(const CXzBlock *p, ISeqOutStream *s)
{
Byte header[XZ_BLOCK_HEADER_SIZE_MAX];
unsigned pos = 1;
unsigned numFilters, i;
header[pos++] = p->flags;
if (XzBlock_HasPackSize(p)) pos += Xz_WriteVarInt(header + pos, p->packSize);
if (XzBlock_HasUnpackSize(p)) pos += Xz_WriteVarInt(header + pos, p->unpackSize);
numFilters = XzBlock_GetNumFilters(p);
for (i = 0; i < numFilters; i++)
{
const CXzFilter *f = &p->filters[i];
pos += Xz_WriteVarInt(header + pos, f->id);
pos += Xz_WriteVarInt(header + pos, f->propsSize);
memcpy(header + pos, f->props, f->propsSize);
pos += f->propsSize;
}
while ((pos & 3) != 0)
header[pos++] = 0;
header[0] = (Byte)(pos >> 2);
SetUi32(header + pos, CrcCalc(header, pos));
return WriteBytes(s, header, pos + 4);
}
typedef struct
{
size_t numBlocks;
size_t size;
size_t allocated;
Byte *blocks;
} CXzEncIndex;
static void XzEncIndex_Construct(CXzEncIndex *p)
{
p->numBlocks = 0;
p->size = 0;
p->allocated = 0;
p->blocks = NULL;
}
static void XzEncIndex_Init(CXzEncIndex *p)
{
p->numBlocks = 0;
p->size = 0;
}
static void XzEncIndex_Free(CXzEncIndex *p, ISzAllocPtr alloc)
{
if (p->blocks)
{
ISzAlloc_Free(alloc, p->blocks);
p->blocks = NULL;
}
p->numBlocks = 0;
p->size = 0;
p->allocated = 0;
}
static SRes XzEncIndex_ReAlloc(CXzEncIndex *p, size_t newSize, ISzAllocPtr alloc)
{
Byte *blocks = ISzAlloc_Alloc(alloc, newSize);
if (!blocks)
return SZ_ERROR_MEM;
if (p->size != 0)
memcpy(blocks, p->blocks, p->size);
if (p->blocks)
ISzAlloc_Free(alloc, p->blocks);
p->blocks = blocks;
p->allocated = newSize;
return SZ_OK;
}
static SRes XzEncIndex_PreAlloc(CXzEncIndex *p, UInt64 numBlocks, UInt64 unpackSize, UInt64 totalSize, ISzAllocPtr alloc)
{
UInt64 pos;
{
Byte buf[32];
unsigned pos2 = Xz_WriteVarInt(buf, totalSize);
pos2 += Xz_WriteVarInt(buf + pos2, unpackSize);
pos = numBlocks * pos2;
}
if (pos <= p->allocated - p->size)
return SZ_OK;
{
UInt64 newSize64 = p->size + pos;
size_t newSize = (size_t)newSize64;
if (newSize != newSize64)
return SZ_ERROR_MEM;
return XzEncIndex_ReAlloc(p, newSize, alloc);
}
}
static SRes XzEncIndex_AddIndexRecord(CXzEncIndex *p, UInt64 unpackSize, UInt64 totalSize, ISzAllocPtr alloc)
{
Byte buf[32];
unsigned pos = Xz_WriteVarInt(buf, totalSize);
pos += Xz_WriteVarInt(buf + pos, unpackSize);
if (pos > p->allocated - p->size)
{
size_t newSize = p->allocated * 2 + 16 * 2;
if (newSize < p->size + pos)
return SZ_ERROR_MEM;
RINOK(XzEncIndex_ReAlloc(p, newSize, alloc));
}
memcpy(p->blocks + p->size, buf, pos);
p->size += pos;
p->numBlocks++;
return SZ_OK;
}
static SRes XzEncIndex_WriteFooter(const CXzEncIndex *p, CXzStreamFlags flags, ISeqOutStream *s)
{
Byte buf[32];
UInt64 globalPos;
UInt32 crc = CRC_INIT_VAL;
unsigned pos = 1 + Xz_WriteVarInt(buf + 1, p->numBlocks);
globalPos = pos;
buf[0] = 0;
RINOK(WriteBytesUpdateCrc(s, buf, pos, &crc));
RINOK(WriteBytesUpdateCrc(s, p->blocks, p->size, &crc));
globalPos += p->size;
pos = XZ_GET_PAD_SIZE(globalPos);
buf[1] = 0;
buf[2] = 0;
buf[3] = 0;
globalPos += pos;
crc = CrcUpdate(crc, buf + 4 - pos, pos);
SetUi32(buf + 4, CRC_GET_DIGEST(crc));
SetUi32(buf + 8 + 4, (UInt32)(globalPos >> 2));
buf[8 + 8] = (Byte)(flags >> 8);
buf[8 + 9] = (Byte)(flags & 0xFF);
SetUi32(buf + 8, CrcCalc(buf + 8 + 4, 6));
buf[8 + 10] = XZ_FOOTER_SIG_0;
buf[8 + 11] = XZ_FOOTER_SIG_1;
return WriteBytes(s, buf + 4 - pos, pos + 4 + 12);
}
/* ---------- CSeqCheckInStream ---------- */
typedef struct
{
ISeqInStream vt;
ISeqInStream *realStream;
const Byte *data;
UInt64 limit;
UInt64 processed;
int realStreamFinished;
CXzCheck check;
} CSeqCheckInStream;
static void SeqCheckInStream_Init(CSeqCheckInStream *p, unsigned checkMode)
{
p->limit = (UInt64)(Int64)-1;
p->processed = 0;
p->realStreamFinished = 0;
XzCheck_Init(&p->check, checkMode);
}
static void SeqCheckInStream_GetDigest(CSeqCheckInStream *p, Byte *digest)
{
XzCheck_Final(&p->check, digest);
}
static SRes SeqCheckInStream_Read(const ISeqInStream *pp, void *data, size_t *size)
{
CSeqCheckInStream *p = CONTAINER_FROM_VTBL(pp, CSeqCheckInStream, 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)
{
if (p->realStream)
{
res = ISeqInStream_Read(p->realStream, data, &size2);
p->realStreamFinished = (size2 == 0) ? 1 : 0;
}
else
memcpy(data, p->data + (size_t)p->processed, size2);
XzCheck_Update(&p->check, data, size2);
p->processed += size2;
}
*size = size2;
return res;
}
/* ---------- CSeqSizeOutStream ---------- */
typedef struct
{
ISeqOutStream vt;
ISeqOutStream *realStream;
Byte *outBuf;
size_t outBufLimit;
UInt64 processed;
} CSeqSizeOutStream;
static size_t SeqSizeOutStream_Write(const ISeqOutStream *pp, const void *data, size_t size)
{
CSeqSizeOutStream *p = CONTAINER_FROM_VTBL(pp, CSeqSizeOutStream, vt);
if (p->realStream)
size = ISeqOutStream_Write(p->realStream, data, size);
else
{
if (size > p->outBufLimit - (size_t)p->processed)
return 0;
memcpy(p->outBuf + (size_t)p->processed, data, size);
}
p->processed += size;
return size;
}
/* ---------- CSeqInFilter ---------- */
#define FILTER_BUF_SIZE (1 << 20)
typedef struct
{
ISeqInStream p;
ISeqInStream *realStream;
IStateCoder StateCoder;
Byte *buf;
size_t curPos;
size_t endPos;
int srcWasFinished;
} CSeqInFilter;
SRes BraState_SetFromMethod(IStateCoder *p, UInt64 id, int encodeMode, ISzAllocPtr alloc);
static SRes SeqInFilter_Init(CSeqInFilter *p, const CXzFilter *props, ISzAllocPtr alloc)
{
if (!p->buf)
{
p->buf = ISzAlloc_Alloc(alloc, FILTER_BUF_SIZE);
if (!p->buf)
return SZ_ERROR_MEM;
}
p->curPos = p->endPos = 0;
p->srcWasFinished = 0;
RINOK(BraState_SetFromMethod(&p->StateCoder, props->id, 1, alloc));
RINOK(p->StateCoder.SetProps(p->StateCoder.p, props->props, props->propsSize, alloc));
p->StateCoder.Init(p->StateCoder.p);
return SZ_OK;
}
static SRes SeqInFilter_Read(const ISeqInStream *pp, void *data, size_t *size)
{
CSeqInFilter *p = CONTAINER_FROM_VTBL(pp, CSeqInFilter, p);
size_t sizeOriginal = *size;
if (sizeOriginal == 0)
return SZ_OK;
*size = 0;
for (;;)
{
if (!p->srcWasFinished && p->curPos == p->endPos)
{
p->curPos = 0;
p->endPos = FILTER_BUF_SIZE;
RINOK(ISeqInStream_Read(p->realStream, p->buf, &p->endPos));
if (p->endPos == 0)
p->srcWasFinished = 1;
}
{
SizeT srcLen = p->endPos - p->curPos;
int wasFinished;
SRes res;
*size = sizeOriginal;
res = p->StateCoder.Code(p->StateCoder.p, data, size, p->buf + p->curPos, &srcLen,
p->srcWasFinished, CODER_FINISH_ANY, &wasFinished);
p->curPos += srcLen;
if (*size != 0 || srcLen == 0 || res != 0)
return res;
}
}
}
static void SeqInFilter_Construct(CSeqInFilter *p)
{
p->buf = NULL;
p->StateCoder.p = NULL;
p->p.Read = SeqInFilter_Read;
}
static void SeqInFilter_Free(CSeqInFilter *p, ISzAllocPtr alloc)
{
if (p->StateCoder.p)
{
p->StateCoder.Free(p->StateCoder.p, alloc);
p->StateCoder.p = NULL;
}
if (p->buf)
{
ISzAlloc_Free(alloc, p->buf);
p->buf = NULL;
}
}
/* ---------- CSbEncInStream ---------- */
#ifdef USE_SUBBLOCK
typedef struct
{
ISeqInStream vt;
ISeqInStream *inStream;
CSbEnc enc;
} CSbEncInStream;
static SRes SbEncInStream_Read(const ISeqInStream *pp, void *data, size_t *size)
{
CSbEncInStream *p = CONTAINER_FROM_VTBL(pp, CSbEncInStream, vt);
size_t sizeOriginal = *size;
if (sizeOriginal == 0)
return SZ_OK;
for (;;)
{
if (p->enc.needRead && !p->enc.readWasFinished)
{
size_t processed = p->enc.needReadSizeMax;
RINOK(p->inStream->Read(p->inStream, p->enc.buf + p->enc.readPos, &processed));
p->enc.readPos += processed;
if (processed == 0)
{
p->enc.readWasFinished = True;
p->enc.isFinalFinished = True;
}
p->enc.needRead = False;
}
*size = sizeOriginal;
RINOK(SbEnc_Read(&p->enc, data, size));
if (*size != 0 || !p->enc.needRead)
return SZ_OK;
}
}
void SbEncInStream_Construct(CSbEncInStream *p, ISzAllocPtr alloc)
{
SbEnc_Construct(&p->enc, alloc);
p->vt.Read = SbEncInStream_Read;
}
SRes SbEncInStream_Init(CSbEncInStream *p)
{
return SbEnc_Init(&p->enc);
}
void SbEncInStream_Free(CSbEncInStream *p)
{
SbEnc_Free(&p->enc);
}
#endif
/* ---------- CXzProps ---------- */
void XzFilterProps_Init(CXzFilterProps *p)
{
p->id = 0;
p->delta = 0;
p->ip = 0;
p->ipDefined = False;
}
void XzProps_Init(CXzProps *p)
{
p->checkId = XZ_CHECK_CRC32;
p->blockSize = XZ_PROPS__BLOCK_SIZE__AUTO;
p->numBlockThreads_Reduced = -1;
p->numBlockThreads_Max = -1;
p->numTotalThreads = -1;
p->reduceSize = (UInt64)(Int64)-1;
p->forceWriteSizesInHeader = 0;
// p->forceWriteSizesInHeader = 1;
XzFilterProps_Init(&p->filterProps);
Lzma2EncProps_Init(&p->lzma2Props);
}
static void XzEncProps_Normalize_Fixed(CXzProps *p)
{
UInt64 fileSize;
int t1, t1n, t2, t2r, t3;
{
CLzma2EncProps tp = p->lzma2Props;
if (tp.numTotalThreads <= 0)
tp.numTotalThreads = p->numTotalThreads;
Lzma2EncProps_Normalize(&tp);
t1n = tp.numTotalThreads;
}
t1 = p->lzma2Props.numTotalThreads;
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->lzma2Props.numTotalThreads = t1;
t2r = t2;
fileSize = p->reduceSize;
if ((p->blockSize < fileSize || fileSize == (UInt64)(Int64)-1))
p->lzma2Props.lzmaProps.reduceSize = p->blockSize;
Lzma2EncProps_Normalize(&p->lzma2Props);
t1 = p->lzma2Props.numTotalThreads;
{
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 void XzProps_Normalize(CXzProps *p)
{
/* we normalize xzProps properties, but we normalize only some of CXzProps::lzma2Props properties.
Lzma2Enc_SetProps() will normalize lzma2Props later. */
if (p->blockSize == XZ_PROPS__BLOCK_SIZE__SOLID)
{
p->lzma2Props.lzmaProps.reduceSize = p->reduceSize;
p->numBlockThreads_Reduced = 1;
p->numBlockThreads_Max = 1;
if (p->lzma2Props.numTotalThreads <= 0)
p->lzma2Props.numTotalThreads = p->numTotalThreads;
return;
}
else
{
CLzma2EncProps *lzma2 = &p->lzma2Props;
if (p->blockSize == LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO)
{
// xz-auto
p->lzma2Props.lzmaProps.reduceSize = p->reduceSize;
if (lzma2->blockSize == LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID)
{
// if (xz-auto && lzma2-solid) - we use solid for both
p->blockSize = XZ_PROPS__BLOCK_SIZE__SOLID;
p->numBlockThreads_Reduced = 1;
p->numBlockThreads_Max = 1;
if (p->lzma2Props.numTotalThreads <= 0)
p->lzma2Props.numTotalThreads = p->numTotalThreads;
}
else
{
// if (xz-auto && (lzma2-auto || lzma2-fixed_)
// we calculate block size for lzma2 and use that block size for xz, lzma2 uses single-chunk per block
CLzma2EncProps tp = p->lzma2Props;
if (tp.numTotalThreads <= 0)
tp.numTotalThreads = p->numTotalThreads;
Lzma2EncProps_Normalize(&tp);
p->blockSize = tp.blockSize; // fixed or solid
p->numBlockThreads_Reduced = tp.numBlockThreads_Reduced;
p->numBlockThreads_Max = tp.numBlockThreads_Max;
if (lzma2->blockSize == LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO)
lzma2->blockSize = tp.blockSize; // fixed or solid, LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID
if (lzma2->lzmaProps.reduceSize > tp.blockSize && tp.blockSize != LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID)
lzma2->lzmaProps.reduceSize = tp.blockSize;
lzma2->numBlockThreads_Reduced = 1;
lzma2->numBlockThreads_Max = 1;
return;
}
}
else
{
// xz-fixed
// we can use xz::reduceSize or xz::blockSize as base for lzmaProps::reduceSize
p->lzma2Props.lzmaProps.reduceSize = p->reduceSize;
{
UInt64 r = p->reduceSize;
if (r > p->blockSize || r == (UInt64)(Int64)-1)
r = p->blockSize;
lzma2->lzmaProps.reduceSize = r;
}
if (lzma2->blockSize == LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO)
lzma2->blockSize = LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID;
else if (lzma2->blockSize > p->blockSize && lzma2->blockSize != LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID)
lzma2->blockSize = p->blockSize;
XzEncProps_Normalize_Fixed(p);
}
}
}
/* ---------- CLzma2WithFilters ---------- */
typedef struct
{
CLzma2EncHandle lzma2;
CSeqInFilter filter;
#ifdef USE_SUBBLOCK
CSbEncInStream sb;
#endif
} CLzma2WithFilters;
static void Lzma2WithFilters_Construct(CLzma2WithFilters *p)
{
p->lzma2 = NULL;
SeqInFilter_Construct(&p->filter);
#ifdef USE_SUBBLOCK
SbEncInStream_Construct(&p->sb, alloc);
#endif
}
static SRes Lzma2WithFilters_Create(CLzma2WithFilters *p, ISzAllocPtr alloc, ISzAllocPtr bigAlloc)
{
if (!p->lzma2)
{
p->lzma2 = Lzma2Enc_Create(alloc, bigAlloc);
if (!p->lzma2)
return SZ_ERROR_MEM;
}
return SZ_OK;
}
static void Lzma2WithFilters_Free(CLzma2WithFilters *p, ISzAllocPtr alloc)
{
#ifdef USE_SUBBLOCK
SbEncInStream_Free(&p->sb);
#endif
SeqInFilter_Free(&p->filter, alloc);
if (p->lzma2)
{
Lzma2Enc_Destroy(p->lzma2);
p->lzma2 = NULL;
}
}
typedef struct
{
UInt64 unpackSize;
UInt64 totalSize;
size_t headerSize;
} CXzEncBlockInfo;
static SRes Xz_CompressBlock(
CLzma2WithFilters *lzmaf,
ISeqOutStream *outStream,
Byte *outBufHeader,
Byte *outBufData, size_t outBufDataLimit,
ISeqInStream *inStream,
// UInt64 expectedSize,
const Byte *inBuf, // used if (!inStream)
size_t inBufSize, // used if (!inStream), it's block size, props->blockSize is ignored
const CXzProps *props,
ICompressProgress *progress,
int *inStreamFinished, /* only for inStream version */
CXzEncBlockInfo *blockSizes,
ISzAllocPtr alloc,
ISzAllocPtr allocBig)
{
CSeqCheckInStream checkInStream;
CSeqSizeOutStream seqSizeOutStream;
CXzBlock block;
unsigned filterIndex = 0;
CXzFilter *filter = NULL;
const CXzFilterProps *fp = &props->filterProps;
if (fp->id == 0)
fp = NULL;
*inStreamFinished = False;
RINOK(Lzma2WithFilters_Create(lzmaf, alloc, allocBig));
RINOK(Lzma2Enc_SetProps(lzmaf->lzma2, &props->lzma2Props));
XzBlock_ClearFlags(&block);
XzBlock_SetNumFilters(&block, 1 + (fp ? 1 : 0));
if (fp)
{
filter = &block.filters[filterIndex++];
filter->id = fp->id;
filter->propsSize = 0;
if (fp->id == XZ_ID_Delta)
{
filter->props[0] = (Byte)(fp->delta - 1);
filter->propsSize = 1;
}
else if (fp->ipDefined)
{
SetUi32(filter->props, fp->ip);
filter->propsSize = 4;
}
}
{
CXzFilter *f = &block.filters[filterIndex++];
f->id = XZ_ID_LZMA2;
f->propsSize = 1;
f->props[0] = Lzma2Enc_WriteProperties(lzmaf->lzma2);
}
seqSizeOutStream.vt.Write = SeqSizeOutStream_Write;
seqSizeOutStream.realStream = outStream;
seqSizeOutStream.outBuf = outBufData;
seqSizeOutStream.outBufLimit = outBufDataLimit;
seqSizeOutStream.processed = 0;
/*
if (expectedSize != (UInt64)(Int64)-1)
{
block.unpackSize = expectedSize;
if (props->blockSize != (UInt64)(Int64)-1)
if (expectedSize > props->blockSize)
block.unpackSize = props->blockSize;
XzBlock_SetHasUnpackSize(&block);
}
*/
if (outStream)
{
RINOK(XzBlock_WriteHeader(&block, &seqSizeOutStream.vt));
}
checkInStream.vt.Read = SeqCheckInStream_Read;
SeqCheckInStream_Init(&checkInStream, props->checkId);
checkInStream.realStream = inStream;
checkInStream.data = inBuf;
checkInStream.limit = props->blockSize;
if (!inStream)
checkInStream.limit = inBufSize;
if (fp)
{
#ifdef USE_SUBBLOCK
if (fp->id == XZ_ID_Subblock)
{
lzmaf->sb.inStream = &checkInStream.vt;
RINOK(SbEncInStream_Init(&lzmaf->sb));
}
else
#endif
{
lzmaf->filter.realStream = &checkInStream.vt;
RINOK(SeqInFilter_Init(&lzmaf->filter, filter, alloc));
}
}
{
SRes res;
Byte *outBuf = NULL;
size_t outSize = 0;
Bool useStream = (fp || inStream);
// useStream = True;
if (!useStream)
{
XzCheck_Update(&checkInStream.check, inBuf, inBufSize);
checkInStream.processed = inBufSize;
}
if (!outStream)
{
outBuf = seqSizeOutStream.outBuf; // + (size_t)seqSizeOutStream.processed;
outSize = seqSizeOutStream.outBufLimit; // - (size_t)seqSizeOutStream.processed;
}
res = Lzma2Enc_Encode2(lzmaf->lzma2,
outBuf ? NULL : &seqSizeOutStream.vt,
outBuf,
outBuf ? &outSize : NULL,
useStream ?
(fp ?
(
#ifdef USE_SUBBLOCK
(fp->id == XZ_ID_Subblock) ? &lzmaf->sb.vt:
#endif
&lzmaf->filter.p) :
&checkInStream.vt) : NULL,
useStream ? NULL : inBuf,
useStream ? 0 : inBufSize,
progress);
if (outBuf)
seqSizeOutStream.processed += outSize;
RINOK(res);
blockSizes->unpackSize = checkInStream.processed;
}
{
Byte buf[4 + 64];
unsigned padSize = XZ_GET_PAD_SIZE(seqSizeOutStream.processed);
UInt64 packSize = seqSizeOutStream.processed;
buf[0] = 0;
buf[1] = 0;
buf[2] = 0;
buf[3] = 0;
SeqCheckInStream_GetDigest(&checkInStream, buf + 4);
RINOK(WriteBytes(&seqSizeOutStream.vt, buf + (4 - padSize), padSize + XzFlags_GetCheckSize((CXzStreamFlags)props->checkId)));
blockSizes->totalSize = seqSizeOutStream.processed - padSize;
if (!outStream)
{
seqSizeOutStream.outBuf = outBufHeader;
seqSizeOutStream.outBufLimit = XZ_BLOCK_HEADER_SIZE_MAX;
seqSizeOutStream.processed = 0;
block.unpackSize = blockSizes->unpackSize;
XzBlock_SetHasUnpackSize(&block);
block.packSize = packSize;
XzBlock_SetHasPackSize(&block);
RINOK(XzBlock_WriteHeader(&block, &seqSizeOutStream.vt));
blockSizes->headerSize = (size_t)seqSizeOutStream.processed;
blockSizes->totalSize += seqSizeOutStream.processed;
}
}
if (inStream)
*inStreamFinished = checkInStream.realStreamFinished;
else
{
*inStreamFinished = False;
if (checkInStream.processed != inBufSize)
return SZ_ERROR_FAIL;
}
return SZ_OK;
}
typedef struct
{
ICompressProgress vt;
ICompressProgress *progress;
UInt64 inOffset;
UInt64 outOffset;
} CCompressProgress_XzEncOffset;
static SRes CompressProgress_XzEncOffset_Progress(const ICompressProgress *pp, UInt64 inSize, UInt64 outSize)
{
const CCompressProgress_XzEncOffset *p = CONTAINER_FROM_VTBL(pp, CCompressProgress_XzEncOffset, vt);
inSize += p->inOffset;
outSize += p->outOffset;
return ICompressProgress_Progress(p->progress, inSize, outSize);
}
typedef struct
{
ISzAllocPtr alloc;
ISzAllocPtr allocBig;
CXzProps xzProps;
UInt64 expectedDataSize;
CXzEncIndex xzIndex;
CLzma2WithFilters lzmaf_Items[MTCODER__THREADS_MAX];
size_t outBufSize; /* size of allocated outBufs[i] */
Byte *outBufs[MTCODER__BLOCKS_MAX];
#ifndef _7ZIP_ST
unsigned checkType;
ISeqOutStream *outStream;
Bool mtCoder_WasConstructed;
CMtCoder mtCoder;
CXzEncBlockInfo EncBlocks[MTCODER__BLOCKS_MAX];
#endif
} CXzEnc;
static void XzEnc_Construct(CXzEnc *p)
{
unsigned i;
XzEncIndex_Construct(&p->xzIndex);
for (i = 0; i < MTCODER__THREADS_MAX; i++)
Lzma2WithFilters_Construct(&p->lzmaf_Items[i]);
#ifndef _7ZIP_ST
p->mtCoder_WasConstructed = False;
{
for (i = 0; i < MTCODER__BLOCKS_MAX; i++)
p->outBufs[i] = NULL;
p->outBufSize = 0;
}
#endif
}
static void XzEnc_FreeOutBufs(CXzEnc *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;
}
static void XzEnc_Free(CXzEnc *p, ISzAllocPtr alloc)
{
unsigned i;
XzEncIndex_Free(&p->xzIndex, alloc);
for (i = 0; i < MTCODER__THREADS_MAX; i++)
Lzma2WithFilters_Free(&p->lzmaf_Items[i], alloc);
#ifndef _7ZIP_ST
if (p->mtCoder_WasConstructed)
{
MtCoder_Destruct(&p->mtCoder);
p->mtCoder_WasConstructed = False;
}
XzEnc_FreeOutBufs(p);
#endif
}
CXzEncHandle XzEnc_Create(ISzAllocPtr alloc, ISzAllocPtr allocBig)
{
CXzEnc *p = (CXzEnc *)ISzAlloc_Alloc(alloc, sizeof(CXzEnc));
if (!p)
return NULL;
XzEnc_Construct(p);
XzProps_Init(&p->xzProps);
XzProps_Normalize(&p->xzProps);
p->expectedDataSize = (UInt64)(Int64)-1;
p->alloc = alloc;
p->allocBig = allocBig;
return p;
}
void XzEnc_Destroy(CXzEncHandle pp)
{
CXzEnc *p = (CXzEnc *)pp;
XzEnc_Free(p, p->alloc);
ISzAlloc_Free(p->alloc, p);
}
SRes XzEnc_SetProps(CXzEncHandle pp, const CXzProps *props)
{
CXzEnc *p = (CXzEnc *)pp;
p->xzProps = *props;
XzProps_Normalize(&p->xzProps);
return SZ_OK;
}
void XzEnc_SetDataSize(CXzEncHandle pp, UInt64 expectedDataSiize)
{
CXzEnc *p = (CXzEnc *)pp;
p->expectedDataSize = expectedDataSiize;
}
#ifndef _7ZIP_ST
static SRes XzEnc_MtCallback_Code(void *pp, unsigned coderIndex, unsigned outBufIndex,
const Byte *src, size_t srcSize, int finished)
{
CXzEnc *me = (CXzEnc *)pp;
SRes res;
CMtProgressThunk progressThunk;
Byte *dest = me->outBufs[outBufIndex];
UNUSED_VAR(finished)
{
CXzEncBlockInfo *bInfo = &me->EncBlocks[outBufIndex];
bInfo->totalSize = 0;
bInfo->unpackSize = 0;
bInfo->headerSize = 0;
}
if (!dest)
{
dest = 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.index = coderIndex;
{
CXzEncBlockInfo blockSizes;
int inStreamFinished;
res = Xz_CompressBlock(
&me->lzmaf_Items[coderIndex],
NULL,
dest,
dest + XZ_BLOCK_HEADER_SIZE_MAX, me->outBufSize - XZ_BLOCK_HEADER_SIZE_MAX,
NULL,
// srcSize, // expectedSize
src, srcSize,
&me->xzProps,
&progressThunk.vt,
&inStreamFinished,
&blockSizes,
me->alloc,
me->allocBig);
if (res == SZ_OK)
me->EncBlocks[outBufIndex] = blockSizes;
return res;
}
}
static SRes XzEnc_MtCallback_Write(void *pp, unsigned outBufIndex)
{
CXzEnc *me = (CXzEnc *)pp;
const CXzEncBlockInfo *bInfo = &me->EncBlocks[outBufIndex];
const Byte *data = me->outBufs[outBufIndex];
RINOK(WriteBytes(me->outStream, data, bInfo->headerSize));
{
UInt64 totalPackFull = bInfo->totalSize + XZ_GET_PAD_SIZE(bInfo->totalSize);
RINOK(WriteBytes(me->outStream, data + XZ_BLOCK_HEADER_SIZE_MAX, (size_t)totalPackFull - bInfo->headerSize));
}
return XzEncIndex_AddIndexRecord(&me->xzIndex, bInfo->unpackSize, bInfo->totalSize, me->alloc);
}
#endif
SRes XzEnc_Encode(CXzEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress)
{
CXzEnc *p = (CXzEnc *)pp;
const CXzProps *props = &p->xzProps;
XzEncIndex_Init(&p->xzIndex);
{
UInt64 numBlocks = 1;
UInt64 blockSize = props->blockSize;
if (blockSize != XZ_PROPS__BLOCK_SIZE__SOLID
&& props->reduceSize != (UInt64)(Int64)-1)
{
numBlocks = props->reduceSize / blockSize;
if (numBlocks * blockSize != props->reduceSize)
numBlocks++;
}
else
blockSize = (UInt64)1 << 62;
RINOK(XzEncIndex_PreAlloc(&p->xzIndex, numBlocks, blockSize, XZ_GET_ESTIMATED_BLOCK_TOTAL_PACK_SIZE(blockSize), p->alloc));
}
RINOK(Xz_WriteHeader((CXzStreamFlags)props->checkId, outStream));
#ifndef _7ZIP_ST
if (props->numBlockThreads_Reduced > 1)
{
IMtCoderCallback2 vt;
if (!p->mtCoder_WasConstructed)
{
p->mtCoder_WasConstructed = True;
MtCoder_Construct(&p->mtCoder);
}
vt.Code = XzEnc_MtCallback_Code;
vt.Write = XzEnc_MtCallback_Write;
p->checkType = props->checkId;
p->xzProps = *props;
p->outStream = outStream;
p->mtCoder.allocBig = p->allocBig;
p->mtCoder.progress = progress;
p->mtCoder.inStream = inStream;
p->mtCoder.inData = NULL;
p->mtCoder.inDataSize = 0;
p->mtCoder.mtCallback = &vt;
p->mtCoder.mtCallbackObject = p;
if ( props->blockSize == XZ_PROPS__BLOCK_SIZE__SOLID
|| props->blockSize == XZ_PROPS__BLOCK_SIZE__AUTO)
return SZ_ERROR_FAIL;
p->mtCoder.blockSize = (size_t)props->blockSize;
if (p->mtCoder.blockSize != props->blockSize)
return SZ_ERROR_PARAM; /* SZ_ERROR_MEM */
{
size_t destBlockSize = XZ_BLOCK_HEADER_SIZE_MAX + XZ_GET_MAX_BLOCK_PACK_SIZE(p->mtCoder.blockSize);
if (destBlockSize < p->mtCoder.blockSize)
return SZ_ERROR_PARAM;
if (p->outBufSize != destBlockSize)
XzEnc_FreeOutBufs(p);
p->outBufSize = destBlockSize;
}
p->mtCoder.numThreadsMax = props->numBlockThreads_Max;
p->mtCoder.expectedDataSize = p->expectedDataSize;
RINOK(MtCoder_Code(&p->mtCoder));
}
else
#endif
{
int writeStartSizes;
CCompressProgress_XzEncOffset progress2;
Byte *bufData = NULL;
size_t bufSize = 0;
progress2.vt.Progress = CompressProgress_XzEncOffset_Progress;
progress2.inOffset = 0;
progress2.outOffset = 0;
progress2.progress = progress;
writeStartSizes = 0;
if (props->blockSize != XZ_PROPS__BLOCK_SIZE__SOLID)
{
writeStartSizes = (props->forceWriteSizesInHeader > 0);
if (writeStartSizes)
{
size_t t2;
size_t t = (size_t)props->blockSize;
if (t != props->blockSize)
return SZ_ERROR_PARAM;
t = XZ_GET_MAX_BLOCK_PACK_SIZE(t);
if (t < props->blockSize)
return SZ_ERROR_PARAM;
t2 = XZ_BLOCK_HEADER_SIZE_MAX + t;
if (!p->outBufs[0] || t2 != p->outBufSize)
{
XzEnc_FreeOutBufs(p);
p->outBufs[0] = ISzAlloc_Alloc(p->alloc, t2);
if (!p->outBufs[0])
return SZ_ERROR_MEM;
p->outBufSize = t2;
}
bufData = p->outBufs[0] + XZ_BLOCK_HEADER_SIZE_MAX;
bufSize = t;
}
}
for (;;)
{
CXzEncBlockInfo blockSizes;
int inStreamFinished;
/*
UInt64 rem = (UInt64)(Int64)-1;
if (props->reduceSize != (UInt64)(Int64)-1
&& props->reduceSize >= progress2.inOffset)
rem = props->reduceSize - progress2.inOffset;
*/
RINOK(Xz_CompressBlock(
&p->lzmaf_Items[0],
writeStartSizes ? NULL : outStream,
writeStartSizes ? p->outBufs[0] : NULL,
bufData, bufSize,
inStream,
// rem,
NULL, 0,
props,
progress ? &progress2.vt : NULL,
&inStreamFinished,
&blockSizes,
p->alloc,
p->allocBig));
{
UInt64 totalPackFull = blockSizes.totalSize + XZ_GET_PAD_SIZE(blockSizes.totalSize);
if (writeStartSizes)
{
RINOK(WriteBytes(outStream, p->outBufs[0], blockSizes.headerSize));
RINOK(WriteBytes(outStream, bufData, (size_t)totalPackFull - blockSizes.headerSize));
}
RINOK(XzEncIndex_AddIndexRecord(&p->xzIndex, blockSizes.unpackSize, blockSizes.totalSize, p->alloc));
progress2.inOffset += blockSizes.unpackSize;
progress2.outOffset += totalPackFull;
}
if (inStreamFinished)
break;
}
}
return XzEncIndex_WriteFooter(&p->xzIndex, (CXzStreamFlags)props->checkId, outStream);
}
#include "Alloc.h"
SRes Xz_Encode(ISeqOutStream *outStream, ISeqInStream *inStream,
const CXzProps *props, ICompressProgress *progress)
{
SRes res;
CXzEncHandle xz = XzEnc_Create(&g_Alloc, &g_BigAlloc);
if (!xz)
return SZ_ERROR_MEM;
res = XzEnc_SetProps(xz, props);
if (res == SZ_OK)
res = XzEnc_Encode(xz, outStream, inStream, progress);
XzEnc_Destroy(xz);
return res;
}
SRes Xz_EncodeEmpty(ISeqOutStream *outStream)
{
SRes res;
CXzEncIndex xzIndex;
XzEncIndex_Construct(&xzIndex);
res = Xz_WriteHeader((CXzStreamFlags)0, outStream);
if (res == SZ_OK)
res = XzEncIndex_WriteFooter(&xzIndex, (CXzStreamFlags)0, outStream);
XzEncIndex_Free(&xzIndex, NULL); // g_Alloc
return res;
}
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