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compress_plugin_demo.h
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compress_plugin_demo.h
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//compress_plugin_demo.h
// compress plugin demo for HDiffz
/*
The MIT License (MIT)
Copyright (c) 2012-2017 HouSisong
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef HDiff_compress_plugin_demo_h
#define HDiff_compress_plugin_demo_h
//compress plugin demo:
// zlibCompressPlugin // zlib's deflate encoding
// pzlibCompressPlugin // compatible with zlib's deflate encoding
// ldefCompressPlugin // compatible with zlib's deflate encoding
// pldefCompressPlugin // compatible with zlib's deflate encoding
// bz2CompressPlugin
// pbz2CompressPlugin
// lzmaCompressPlugin
// lzma2CompressPlugin
// lz4CompressPlugin
// lz4hcCompressPlugin
// zstdCompressPlugin
// brotliCompressPlugin
// lzhamCompressPlugin
// tuzCompressPlugin
// _7zXZCompressPlugin : support for create_vcdiff(), compatible with "xdelta3 -S lzma ..."
#include "libHDiffPatch/HDiff/diff_types.h"
#include "compress_parallel.h"
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef kDefaultCompressThreadNumber
#if (_IS_USED_MULTITHREAD)
# define kDefaultCompressThreadNumber 4
#else
# define kDefaultCompressThreadNumber 1
#endif
#endif
#ifndef kCompressBufSize
# define kCompressBufSize (1024*32)
#endif
#ifndef _IsNeedIncludeDefaultCompressHead
# define _IsNeedIncludeDefaultCompressHead 1
#endif
#define kCompressFailResult 0
#define _compress_error_return(_errAt) do{ \
result=kCompressFailResult; \
if (strlen(errAt)==0) errAt=_errAt; \
goto clear; } while(0)
#ifndef IS_NOTICE_compress_canceled
# define IS_NOTICE_compress_canceled 1
#endif
#ifndef IS_REUSE_compress_handle
# define IS_REUSE_compress_handle 0
#endif
#define _check_compress_result(result,outStream_isCanceled,_at,_errAt) \
if ((result)==kCompressFailResult){ \
if (outStream_isCanceled){ \
if (IS_NOTICE_compress_canceled) \
printf(" (NOTICE: " _at " is canceled, warning.)\n"); \
}else{ \
printf(" (NOTICE: " _at " is canceled, %s ERROR!)\n",_errAt); \
} \
}
#define _stream_out_code_write(out_code,isCanceled,writePos,buf,len) { \
if (!out_code->write(out_code,writePos,buf,buf+len)){ \
isCanceled=1; \
_compress_error_return("out_code->write()");\
} \
writePos+=len; }
#define _def_fun_compressType(_fun_name,cstr) \
static const char* _fun_name(void){ \
static const char* kCompressType=cstr; \
return kCompressType; \
}
static
hpatch_StreamPos_t _default_maxCompressedSize(hpatch_StreamPos_t dataSize){
hpatch_StreamPos_t result=dataSize+(dataSize>>3)+1024*2;
assert(result>dataSize);
return result;
}
static
int _default_setParallelThreadNumber(hdiff_TCompress* compressPlugin,int threadNum){
return 1;
}
#ifdef _CompressPlugin_zlib
#if (_IsNeedIncludeDefaultCompressHead)
# include "zlib.h" // http://zlib.net/ https://github.com/madler/zlib
#endif
typedef struct{
hdiff_TCompress base;
int compress_level; //0..9
int mem_level;
signed char windowBits; // -9..-15
hpatch_BOOL isNeedSaveWindowBits;
int strategy;
} TCompressPlugin_zlib;
typedef struct _zlib_TCompress{
const hpatch_TStreamOutput* out_code;
unsigned char* c_buf;
size_t c_buf_size;
z_stream c_stream;
} _zlib_TCompress;
static _zlib_TCompress* _zlib_compress_open_at(const hdiff_TCompress* compressPlugin,
int compressLevel,int compressMemLevel,
const hpatch_TStreamOutput* out_code,
_zlib_TCompress* self,size_t _self_and_buf_size){
const TCompressPlugin_zlib* plugin=(const TCompressPlugin_zlib*)compressPlugin;
assert(_self_and_buf_size>sizeof(_zlib_TCompress));
memset(self,0,sizeof(_zlib_TCompress));
self->c_buf=((unsigned char*)self)+sizeof(_zlib_TCompress);;
self->c_buf_size=_self_and_buf_size-sizeof(_zlib_TCompress);
self->out_code=out_code;
self->c_stream.next_out = (Bytef*)self->c_buf;
self->c_stream.avail_out = (uInt)self->c_buf_size;
if (Z_OK!=deflateInit2(&self->c_stream,compressLevel,Z_DEFLATED,
plugin->windowBits,compressMemLevel,plugin->strategy))
return 0;
return self;
}
static _zlib_TCompress* _zlib_compress_open_by(const hdiff_TCompress* compressPlugin,
int compressLevel,int compressMemLevel,
const hpatch_TStreamOutput* out_code,
unsigned char* _mem_buf,size_t _mem_buf_size){
#define __MAX_TS(a,b) ((a)>=(b)?(a):(b))
const hpatch_size_t kZlibAlign=__MAX_TS(__MAX_TS(sizeof(hpatch_StreamPos_t),sizeof(void*)),sizeof(uLongf));
#undef __MAX_TS
unsigned char* _mem_buf_end=_mem_buf+_mem_buf_size;
unsigned char* self_at=(unsigned char*)_hpatch_align_upper(_mem_buf,kZlibAlign);
if (self_at>=_mem_buf_end) return 0;
return _zlib_compress_open_at(compressPlugin,compressLevel,compressMemLevel,out_code,
(_zlib_TCompress*)self_at,_mem_buf_end-self_at);
}
static hpatch_BOOL _zlib_compress_close_by(const hdiff_TCompress* compressPlugin,_zlib_TCompress* self){
hpatch_BOOL result=hpatch_TRUE;
if (!self) return result;
if (self->c_stream.state!=0){
int ret=deflateEnd(&self->c_stream);
result=(Z_OK==ret)|(Z_DATA_ERROR==ret);
}
memset(self,0,sizeof(_zlib_TCompress));
return result;
}
static int _zlib_compress_part(_zlib_TCompress* self,
const unsigned char* part_data,const unsigned char* part_data_end,
int is_data_end,hpatch_StreamPos_t* curWritedPos,int* outStream_isCanceled){
int result=1; //true
const char* errAt="";
int is_stream_end=0;
int is_eof=0;
assert(part_data<=part_data_end);
self->c_stream.next_in=(Bytef*)part_data;
self->c_stream.avail_in=(uInt)(part_data_end-part_data);
while (1) {
if ((self->c_stream.avail_out<self->c_buf_size)|is_stream_end){
size_t writeLen=self->c_buf_size-self->c_stream.avail_out;
if (writeLen>0){
_stream_out_code_write(self->out_code,*outStream_isCanceled,
(*curWritedPos),self->c_buf,writeLen);
}
self->c_stream.next_out=(Bytef*)self->c_buf;
self->c_stream.avail_out=(uInt)self->c_buf_size;
if (is_stream_end)
break;//end loop
}else{
if (self->c_stream.avail_in>0){
if (Z_OK!=deflate(&self->c_stream,Z_NO_FLUSH)) _compress_error_return("deflate()");
}else if (is_eof){
int ret=deflate(&self->c_stream,Z_FINISH);
is_stream_end= (ret==Z_STREAM_END);
if ((ret!=Z_STREAM_END)&&(ret!=Z_OK))
_compress_error_return("deflate() Z_FINISH");
}else{
if (!is_data_end)
break;//part ok
else
is_eof=1;
}
}
}
clear:
_check_compress_result(result,*outStream_isCanceled,"_zlib_compress_part()",errAt);
return result;
}
static hpatch_StreamPos_t _zlib_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
const TCompressPlugin_zlib* plugin=(const TCompressPlugin_zlib*)compressPlugin;
hpatch_StreamPos_t result=0; //writedPos
hpatch_StreamPos_t readFromPos=0;
const char* errAt="";
int outStream_isCanceled=0;
unsigned char* _temp_buf=0;
unsigned char* data_buf=0;
_zlib_TCompress* self=0;
_temp_buf=(unsigned char*)malloc(sizeof(_zlib_TCompress)+kCompressBufSize*2);
if (!_temp_buf) _compress_error_return("memory alloc");
self=_zlib_compress_open_by(compressPlugin,plugin->compress_level,plugin->mem_level,
out_code,_temp_buf,sizeof(_zlib_TCompress)+kCompressBufSize);
data_buf=_temp_buf+sizeof(_zlib_TCompress)+kCompressBufSize;
if (!self) _compress_error_return("deflateInit2()");
if (plugin->isNeedSaveWindowBits){
const unsigned char* pchar=(const unsigned char*)&plugin->windowBits;
if (!out_code->write(out_code,0,pchar,pchar+1)) _compress_error_return("out_code->write()");
++result;
}
while (readFromPos<in_data->streamSize){
size_t readLen=kCompressBufSize;
if (readLen>(hpatch_StreamPos_t)(in_data->streamSize-readFromPos))
readLen=(size_t)(in_data->streamSize-readFromPos);
if (!in_data->read(in_data,readFromPos,data_buf,data_buf+readLen))
_compress_error_return("in_data->read()");
readFromPos+=readLen;
if (!_zlib_compress_part(self,data_buf,data_buf+readLen,
(readFromPos==in_data->streamSize),&result,&outStream_isCanceled))
_compress_error_return("_zlib_compress_part()");
}
clear:
if (!_zlib_compress_close_by(compressPlugin,self))
{ result=kCompressFailResult; if (strlen(errAt)==0) errAt="deflateEnd()"; }
_check_compress_result(result,outStream_isCanceled,"_zlib_compress()",errAt);
if (_temp_buf) free(_temp_buf);
return result;
}
_def_fun_compressType(_zlib_compressType,"zlib");
static const TCompressPlugin_zlib zlibCompressPlugin={
{_zlib_compressType,_default_maxCompressedSize,_default_setParallelThreadNumber,_zlib_compress},
9,8,-MAX_WBITS,hpatch_TRUE,Z_DEFAULT_STRATEGY};
# if (_IS_USED_MULTITHREAD)
//pzlib
typedef struct {
TCompressPlugin_zlib base;
int thread_num; // 1..
hdiff_TParallelCompress pc;
} TCompressPlugin_pzlib;
static int _pzlib_setThreadNum(hdiff_TCompress* compressPlugin,int threadNum){
TCompressPlugin_pzlib* plugin=(TCompressPlugin_pzlib*)compressPlugin;
plugin->thread_num=threadNum;
return threadNum;
}
static void _pzlib_closeBlockCompressor(hdiff_TParallelCompress* pc,
hdiff_compressBlockHandle blockCompressor){
z_stream* stream=(z_stream*)blockCompressor;
if (!stream) return;
if (stream->state!=0){
int ret=deflateEnd(stream);
assert((Z_OK==ret)|(Z_DATA_ERROR==ret));
}
free(stream);
}
static hdiff_compressBlockHandle _pzlib_openBlockCompressor(hdiff_TParallelCompress* pc){
const TCompressPlugin_pzlib* plugin=(const TCompressPlugin_pzlib*)pc->import;
z_stream* stream=(z_stream*)malloc(sizeof(z_stream));
if (!stream) return 0;
memset(stream,0,sizeof(z_stream));
int err = deflateInit2(stream,plugin->base.compress_level,Z_DEFLATED,
plugin->base.windowBits,plugin->base.mem_level,Z_DEFAULT_STRATEGY);
if (err!=Z_OK){//error
_pzlib_closeBlockCompressor(pc,stream);
return 0;
}
return stream;
}
static int _pzlib_compress2(Bytef* dest,uLongf* destLen,const unsigned char* block_data,
const unsigned char* block_dictEnd,const unsigned char* block_dataEnd,
int isEndBlock,z_stream* stream){
int err;
#define _check_zlib_err(_must_V) { if (err!=(_must_V)) goto _errorReturn; }
err=deflateReset(stream);
_check_zlib_err(Z_OK);
stream->next_in = (Bytef*)block_dictEnd;
stream->avail_in = (uInt)(block_dataEnd-block_dictEnd);
stream->next_out = dest;
stream->avail_out = (uInt)*destLen;
stream->total_out = 0;
if (block_data<block_dictEnd){
err=deflateSetDictionary(stream,(Bytef*)block_data,(uInt)(block_dictEnd-block_data));
_check_zlib_err(Z_OK);
}
if (!isEndBlock){
int bits;
err = deflate(stream,Z_BLOCK);
_check_zlib_err(Z_OK);
// add enough empty blocks to get to a byte boundary
err = deflatePending(stream,Z_NULL,&bits);
_check_zlib_err(Z_OK);
if (bits & 1){
err = deflate(stream,Z_SYNC_FLUSH);
_check_zlib_err(Z_OK);
} else if (bits & 7) {
do { // add static empty blocks
err = deflatePrime(stream, 10, 2);
_check_zlib_err(Z_OK);
err = deflatePending(stream,Z_NULL,&bits);
_check_zlib_err(Z_OK);
} while (bits & 7);
err = deflate(stream,Z_BLOCK);
_check_zlib_err(Z_OK);
}
}else{
err = deflate(stream,Z_FINISH);
_check_zlib_err(Z_STREAM_END);
err=Z_OK;
}
*destLen = stream->total_out;
return err;
_errorReturn:
return err == Z_OK ? Z_BUF_ERROR : err;
#undef _check_zlib_err
}
static
size_t _pzlib_compressBlock(hdiff_TParallelCompress* pc,hdiff_compressBlockHandle blockCompressor,
hpatch_StreamPos_t blockIndex,hpatch_StreamPos_t blockCount,unsigned char* out_code,unsigned char* out_codeEnd,
const unsigned char* block_data,const unsigned char* block_dictEnd,const unsigned char* block_dataEnd){
const TCompressPlugin_pzlib* plugin=(const TCompressPlugin_pzlib*)pc->import;
const hpatch_BOOL isAdding=(blockIndex==0)&&(plugin->base.isNeedSaveWindowBits);
if (isAdding){
if (out_code>=out_codeEnd) return 0;//error;
out_code[0]=plugin->base.windowBits;
++out_code;
}
uLongf codeLen=(uLongf)(out_codeEnd-out_code);
if (Z_OK!=_pzlib_compress2(out_code,&codeLen,block_data,block_dictEnd,block_dataEnd,
blockIndex+1==blockCount?1:0,(z_stream*)blockCompressor))
return 0; //error
return codeLen+(isAdding?1:0);
}
static hpatch_StreamPos_t _pzlib_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
TCompressPlugin_pzlib* plugin=(TCompressPlugin_pzlib*)compressPlugin;
const size_t blockSize=256*1024;
if ((plugin->thread_num<=1)||(plugin->base.compress_level==0)
||(in_data->streamSize<blockSize*2)){ //same as "zlib"
return _zlib_compress(compressPlugin,out_code,in_data);
}else{
int dictBits=plugin->base.windowBits;
if (dictBits<0) dictBits=-dictBits;
if (dictBits>15) dictBits-=16;
if (dictBits<9) dictBits=9;
else if (dictBits>15) dictBits=15;
plugin->pc.import=plugin;
return parallel_compress_blocks(&plugin->pc,plugin->thread_num,((size_t)1<<dictBits),blockSize,out_code,in_data);
}
}
static const TCompressPlugin_pzlib pzlibCompressPlugin={
{ {_zlib_compressType,_default_maxCompressedSize,_pzlib_setThreadNum,_pzlib_compress},
6,8,-MAX_WBITS,hpatch_TRUE,Z_DEFAULT_STRATEGY},
kDefaultCompressThreadNumber ,{0,_default_maxCompressedSize,_pzlib_openBlockCompressor,
_pzlib_closeBlockCompressor,_pzlib_compressBlock} };
# endif // _IS_USED_MULTITHREAD
#endif//_CompressPlugin_zlib
#ifdef _CompressPlugin_ldef
#if (_IsNeedIncludeDefaultCompressHead)
# include "libdeflate.h" // "libdeflate/libdeflate.h" https://github.com/sisong/libdeflate/tree/stream-mt based on https://github.com/ebiggers/libdeflate
#endif
static const signed char _ldef_kWindowBits=-15; //always as zlib's windowBits -15
static const size_t _ldef_kDictSize=(1<<15);
static const size_t _ldef_kMax_in_border_nbytes=258;//deflate max match len
static size_t _ldef_getBestWorkStepSize(hpatch_StreamPos_t data_size,size_t compress_level,size_t thread_num){
const size_t _kMinBaseStep=600000;
size_t base_step_size=1024*1024*2;
hpatch_StreamPos_t work_count=(data_size+base_step_size-1)/base_step_size;
if (work_count>=thread_num) return base_step_size;
size_t step_size=(size_t)((data_size+thread_num-1)/thread_num);
const size_t minStep=_kMinBaseStep;
step_size=(step_size>minStep)?step_size:minStep;
return step_size;
}
typedef struct{
hdiff_TCompress base;
int compress_level; //0..12
hpatch_BOOL isNeedSaveWindowBits;
} TCompressPlugin_ldef;
static hpatch_StreamPos_t _ldef_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
const TCompressPlugin_ldef* plugin=(const TCompressPlugin_ldef*)compressPlugin;
hpatch_StreamPos_t result=0; //writedPos
hpatch_StreamPos_t readFromPos=0;
const char* errAt="";
int outStream_isCanceled=0;
unsigned char* data_buf=0;
unsigned char* code_buf=0;
struct libdeflate_compressor* c=0;
size_t in_border_nbytes=0;
const size_t in_step_size=_ldef_getBestWorkStepSize(in_data->streamSize,plugin->compress_level,1);
const size_t _in_buf_size=_ldef_kDictSize+in_step_size+_ldef_kMax_in_border_nbytes;
const size_t block_bound=libdeflate_deflate_compress_bound_block(in_step_size);
data_buf=(unsigned char*)malloc(_in_buf_size+block_bound);
if (!data_buf) _compress_error_return("memory alloc");
code_buf=data_buf+_in_buf_size;
c=libdeflate_alloc_compressor(plugin->compress_level);
if (!c) _compress_error_return("libdeflate_alloc_compressor()");
if (plugin->isNeedSaveWindowBits){//save deflate windowBits
const unsigned char* pchar=(const unsigned char*)&_ldef_kWindowBits;
if (!out_code->write(out_code,0,pchar,pchar+1)) _compress_error_return("out_code->write()");
++result;
}
while (readFromPos<in_data->streamSize){
const size_t curDictSize=(readFromPos>0)?_ldef_kDictSize:0;
size_t readLen=in_step_size;
size_t codeLen;
if (readLen>(hpatch_StreamPos_t)(in_data->streamSize-readFromPos))
readLen=(size_t)(in_data->streamSize-readFromPos);
{
unsigned char* dst_buf=data_buf+curDictSize+in_border_nbytes;
size_t cur_in_border_nbytes=_ldef_kMax_in_border_nbytes;
if (readLen+cur_in_border_nbytes>(hpatch_StreamPos_t)(in_data->streamSize-readFromPos))
cur_in_border_nbytes=(size_t)(in_data->streamSize-readFromPos-readLen);
if (!in_data->read(in_data,readFromPos+in_border_nbytes,dst_buf,
dst_buf+readLen+cur_in_border_nbytes-in_border_nbytes))
_compress_error_return("in_data->read()");
in_border_nbytes=cur_in_border_nbytes;
}
readFromPos+=readLen;
codeLen=libdeflate_deflate_compress_block_continue(c,data_buf,curDictSize,readLen,in_border_nbytes,
(readFromPos==in_data->streamSize),code_buf,block_bound,hpatch_FALSE);
if (codeLen>0){
_stream_out_code_write(out_code,outStream_isCanceled,result,code_buf,codeLen);
}else
_compress_error_return("libdeflate_deflate_compress_block_continue()");
if (readFromPos<in_data->streamSize){
memmove(data_buf,data_buf+readLen+curDictSize-_ldef_kDictSize,_ldef_kDictSize+in_border_nbytes);
}
}
clear:
if (c) libdeflate_free_compressor(c);
_check_compress_result(result,outStream_isCanceled,"_ldef_compress()",errAt);
if (data_buf) free(data_buf);
return result;
}
_def_fun_compressType(_ldef_compressType,"zlib");
_def_fun_compressType(_ldef_compressTypeForDisplay,"ldef (zlib compatible)");
static const TCompressPlugin_ldef ldefCompressPlugin={
{_ldef_compressType,_default_maxCompressedSize,_default_setParallelThreadNumber,
_ldef_compress,_ldef_compressTypeForDisplay}, 12,hpatch_TRUE};
# if (_IS_USED_MULTITHREAD)
//pldef
typedef struct {
TCompressPlugin_ldef base;
int thread_num; // 1..
hdiff_TParallelCompress pc;
} TCompressPlugin_pldef;
static int _pldef_setThreadNum(hdiff_TCompress* compressPlugin,int threadNum){
TCompressPlugin_pldef* plugin=(TCompressPlugin_pldef*)compressPlugin;
plugin->thread_num=threadNum;
return threadNum;
}
static hdiff_compressBlockHandle _pldef_openBlockCompressor(hdiff_TParallelCompress* pc){
const TCompressPlugin_pldef* plugin=(const TCompressPlugin_pldef*)pc->import;
return libdeflate_alloc_compressor(plugin->base.compress_level);
}
static void _pldef_closeBlockCompressor(hdiff_TParallelCompress* pc,
hdiff_compressBlockHandle blockCompressor){
libdeflate_free_compressor((struct libdeflate_compressor*)blockCompressor);
}
static
size_t _pldef_compressBlock(hdiff_TParallelCompress* pc,hdiff_compressBlockHandle blockCompressor,
hpatch_StreamPos_t blockIndex,hpatch_StreamPos_t blockCount,unsigned char* out_code,unsigned char* out_codeEnd,
const unsigned char* block_data,const unsigned char* block_dictEnd,const unsigned char* block_dataEnd){
const TCompressPlugin_pldef* plugin=(const TCompressPlugin_pldef*)pc->import;
struct libdeflate_compressor* c=(struct libdeflate_compressor*)blockCompressor;
const hpatch_BOOL isAdding=(blockIndex==0)&&plugin->base.isNeedSaveWindowBits;
if (isAdding){
if (out_code>=out_codeEnd) return 0;//error;
out_code[0]=_ldef_kWindowBits;
++out_code;
}
size_t codeLen=libdeflate_deflate_compress_block(c,block_data,block_dictEnd-block_data,block_dataEnd-block_dictEnd,
blockIndex+1==blockCount,out_code,out_codeEnd-out_code,1);
if (codeLen==0)
return 0; //error
return codeLen+(isAdding?1:0);
}
static hpatch_StreamPos_t _pldef_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
TCompressPlugin_pldef* plugin=(TCompressPlugin_pldef*)compressPlugin;
const size_t blockSize=_ldef_getBestWorkStepSize(in_data->streamSize,plugin->base.compress_level,plugin->thread_num);
if ((plugin->thread_num<=1)||(plugin->base.compress_level==0)
||(in_data->streamSize<blockSize*2)){ //same as "zlib"
return _ldef_compress(compressPlugin,out_code,in_data);
}else{
plugin->pc.import=plugin;
return parallel_compress_blocks(&plugin->pc,plugin->thread_num,_ldef_kDictSize,blockSize,out_code,in_data);
}
}
static const TCompressPlugin_pldef pldefCompressPlugin={
{ {_ldef_compressType,_default_maxCompressedSize,_pldef_setThreadNum,
_pldef_compress,_ldef_compressTypeForDisplay}, 9,hpatch_TRUE},
kDefaultCompressThreadNumber ,{0,_default_maxCompressedSize,_pldef_openBlockCompressor,
_pldef_closeBlockCompressor,_pldef_compressBlock} };
# endif // _IS_USED_MULTITHREAD
#endif//_CompressPlugin_ldef
#ifdef _CompressPlugin_bz2
#if (_IsNeedIncludeDefaultCompressHead)
# include "bzlib.h" // http://www.bzip.org/ https://github.com/sisong/bzip2
#endif
typedef struct{
hdiff_TCompress base;
int compress_level; //0..9
} TCompressPlugin_bz2;
static hpatch_StreamPos_t _bz2_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
const TCompressPlugin_bz2* plugin=(const TCompressPlugin_bz2*)compressPlugin;
hpatch_StreamPos_t result=0;
const char* errAt="";
unsigned char* _temp_buf=0;
bz_stream s;
unsigned char* code_buf,* data_buf;
int is_eof=0;
int is_stream_end=0;
hpatch_StreamPos_t readFromPos=0;
int outStream_isCanceled=0;
memset(&s,0,sizeof(s));
_temp_buf=(unsigned char*)malloc(kCompressBufSize*2);
if (!_temp_buf) _compress_error_return("memory alloc");
code_buf=_temp_buf;
data_buf=_temp_buf+kCompressBufSize;
s.next_out = (char*)code_buf;
s.avail_out = kCompressBufSize;
if (BZ_OK!=BZ2_bzCompressInit(&s,plugin->compress_level, 0, 0))
_compress_error_return("BZ2_bzCompressInit()");
while (1) {
if ((s.avail_out<kCompressBufSize)|is_stream_end){
size_t writeLen=kCompressBufSize-s.avail_out;
if (writeLen>0){
_stream_out_code_write(out_code,outStream_isCanceled,result,code_buf,writeLen);
}
s.next_out=(char*)code_buf;
s.avail_out=kCompressBufSize;
if (is_stream_end)
break;//end loop
}else{
if (s.avail_in>0){
if (BZ_RUN_OK!=BZ2_bzCompress(&s,BZ_RUN)) _compress_error_return("BZ2_bzCompress()");
}else if (is_eof){
int ret=BZ2_bzCompress(&s,BZ_FINISH);
is_stream_end= (ret==BZ_STREAM_END);
if ((ret!=BZ_STREAM_END)&&(ret!=BZ_FINISH_OK))
_compress_error_return("BZ2_bzCompress() BZ_FINISH");
}else{
size_t readLen=kCompressBufSize;
if (readFromPos+readLen>in_data->streamSize)
readLen=(size_t)(in_data->streamSize-readFromPos);
if (readLen==0){
is_eof=1;
}else{
if (!in_data->read(in_data,readFromPos,data_buf,data_buf+readLen))
_compress_error_return("in_data->read()");
readFromPos+=readLen;
s.next_in=(char*)data_buf;
s.avail_in=(unsigned int)readLen;
}
}
}
}
clear:
if (BZ_OK!=BZ2_bzCompressEnd(&s))
{ result=kCompressFailResult; if (strlen(errAt)==0) errAt="BZ2_bzCompressEnd()"; }
_check_compress_result(result,outStream_isCanceled,"_bz2_compress()",errAt);
if (_temp_buf) free(_temp_buf);
return result;
}
_def_fun_compressType(_bz2_compressType,"bz2");
static const TCompressPlugin_bz2 bz2CompressPlugin={
{_bz2_compressType,_default_maxCompressedSize,_default_setParallelThreadNumber,_bz2_compress}, 9};
# if (_IS_USED_MULTITHREAD)
//pbz2
typedef struct{
TCompressPlugin_bz2 base;
int thread_num; // 1..
hdiff_TParallelCompress pc;
} TCompressPlugin_pbz2;
static int _pbz2_setThreadNum(hdiff_TCompress* compressPlugin,int threadNum){
TCompressPlugin_pbz2* plugin=(TCompressPlugin_pbz2*)compressPlugin;
plugin->thread_num=threadNum;
return threadNum;
}
static hdiff_compressBlockHandle _pbz2_openBlockCompressor(hdiff_TParallelCompress* pc){
return pc;
}
static void _pbz2_closeBlockCompressor(hdiff_TParallelCompress* pc,
hdiff_compressBlockHandle blockCompressor){
assert(blockCompressor==pc);
}
static
size_t _pbz2_compressBlock(hdiff_TParallelCompress* pc,hdiff_compressBlockHandle blockCompressor,
hpatch_StreamPos_t blockIndex,hpatch_StreamPos_t blockCount,unsigned char* out_code,unsigned char* out_codeEnd,
const unsigned char* block_data,const unsigned char* block_dictEnd,const unsigned char* block_dataEnd){
const TCompressPlugin_pbz2* plugin=(const TCompressPlugin_pbz2*)pc->import;
unsigned int codeLen=(unsigned int)(out_codeEnd-out_code);
if (BZ_OK!=BZ2_bzBuffToBuffCompress((char*)out_code,&codeLen,(char*)block_data,
(unsigned int)(block_dataEnd-block_data),
plugin->base.compress_level,0,0)) return 0; //error
return codeLen;
}
static hpatch_StreamPos_t _pbz2_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
TCompressPlugin_pbz2* plugin=(TCompressPlugin_pbz2*)compressPlugin;
const size_t blockSize=plugin->base.compress_level*100000;
if ((plugin->thread_num<=1)||(plugin->base.compress_level==0)
||(in_data->streamSize<blockSize*2)){ //same as "bz2"
return _bz2_compress(compressPlugin,out_code,in_data);
}else{
plugin->pc.import=plugin;
return parallel_compress_blocks(&plugin->pc,plugin->thread_num,0,blockSize,out_code,in_data);
}
}
_def_fun_compressType(_pbz2_compressType,"pbz2");
static const TCompressPlugin_pbz2 pbz2CompressPlugin={
{ {_pbz2_compressType,_default_maxCompressedSize,_pbz2_setThreadNum,_pbz2_compress}, 8},
kDefaultCompressThreadNumber ,{0,_default_maxCompressedSize,_pbz2_openBlockCompressor,
_pbz2_closeBlockCompressor,_pbz2_compressBlock} };
# endif // _IS_USED_MULTITHREAD
#endif//_CompressPlugin_bz2
#if (defined _CompressPlugin_lzma)||(defined _CompressPlugin_lzma2)||(defined _CompressPlugin_7zXZ)
#if (_IsNeedIncludeDefaultCompressHead)
# include "LzmaEnc.h" // "lzma/C/LzmaEnc.h" https://github.com/sisong/lzma
# ifdef _CompressPlugin_lzma2
# include "Lzma2Enc.h"
# endif
#endif
static void * __lzma_enc_Alloc(ISzAllocPtr p, size_t size){
return malloc(size);
}
static void __lzma_enc_Free(ISzAllocPtr p, void *address){
free(address);
}
static ISzAlloc __lzma_enc_alloc={__lzma_enc_Alloc,__lzma_enc_Free};
struct __lzma_SeqOutStream_t{
ISeqOutStream base;
const hpatch_TStreamOutput* out_code;
hpatch_StreamPos_t writeToPos;
int isCanceled;
};
static size_t __lzma_SeqOutStream_Write(const ISeqOutStream *p, const void *buf, size_t size){
__lzma_SeqOutStream_t* self=(__lzma_SeqOutStream_t*)p;
const unsigned char* pdata=(const unsigned char*)buf;
if (size>0){
if (!self->out_code->write(self->out_code,self->writeToPos,pdata,pdata+size)){
self->isCanceled=1;
return 0;
}
}
self->writeToPos+=size;
return size;
}
struct __lzma_SeqInStream_t{
ISeqInStream base;
const hpatch_TStreamInput* in_data;
hpatch_StreamPos_t readFromPos;
};
static SRes __lzma_SeqInStream_Read(const ISeqInStream *p, void *buf, size_t *size){
__lzma_SeqInStream_t* self=(__lzma_SeqInStream_t*)p;
size_t readLen=*size;
if (readLen+self->readFromPos>self->in_data->streamSize)
readLen=(size_t)(self->in_data->streamSize-self->readFromPos);
if (readLen>0){
unsigned char* pdata=(unsigned char*)buf;
if (!self->in_data->read(self->in_data,self->readFromPos,pdata,pdata+readLen)){
*size=0;
return SZ_ERROR_READ;
}
}
self->readFromPos+=readLen;
*size=readLen;
return SZ_OK;
}
#endif
#ifdef _CompressPlugin_lzma
typedef struct{
hdiff_TCompress base;
int compress_level; //0..9
UInt32 dict_size; //patch decompress need 4?*lzma_dictSize memory
int thread_num; //1..2
} TCompressPlugin_lzma;
static int _lzma_setThreadNumber(hdiff_TCompress* compressPlugin,int threadNum){
TCompressPlugin_lzma* plugin=(TCompressPlugin_lzma*)compressPlugin;
if (threadNum>2) threadNum=2;
plugin->thread_num=threadNum;
return threadNum;
}
static hpatch_StreamPos_t _lzma_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
const TCompressPlugin_lzma* plugin=(const TCompressPlugin_lzma*)compressPlugin;
struct __lzma_SeqOutStream_t outStream={{__lzma_SeqOutStream_Write},out_code,0,0};
struct __lzma_SeqInStream_t inStream={{__lzma_SeqInStream_Read},in_data,0};
hpatch_StreamPos_t result=0;
const char* errAt="";
#if (IS_REUSE_compress_handle)
static CLzmaEncHandle s=0;
#else
CLzmaEncHandle s=0;
#endif
CLzmaEncProps props;
unsigned char properties_buf[LZMA_PROPS_SIZE+1];
SizeT properties_size=LZMA_PROPS_SIZE;
SRes ret;
hpatch_uint32_t dictSize=plugin->dict_size;
if (!s) s=LzmaEnc_Create(&__lzma_enc_alloc);
if (!s) _compress_error_return("LzmaEnc_Create()");
LzmaEncProps_Init(&props);
props.level=plugin->compress_level;
props.dictSize=dictSize;
props.reduceSize=in_data->streamSize;
props.numThreads=plugin->thread_num;
LzmaEncProps_Normalize(&props);
if (SZ_OK!=LzmaEnc_SetProps(s,&props)) _compress_error_return("LzmaEnc_SetProps()");
# if (IS_NOTICE_compress_canceled)
printf(" (used one lzma dictSize: %" PRIu64 " (input data: %" PRIu64 "))\n",
(hpatch_StreamPos_t)props.dictSize,in_data->streamSize);
# endif
//save properties_size+properties
assert(LZMA_PROPS_SIZE<256);
if (SZ_OK!=LzmaEnc_WriteProperties(s,properties_buf+1,&properties_size))
_compress_error_return("LzmaEnc_WriteProperties()");
properties_buf[0]=(unsigned char)properties_size;
if (1+properties_size!=__lzma_SeqOutStream_Write(&outStream.base,properties_buf,1+properties_size))
_compress_error_return("out_code->write()");
ret=LzmaEnc_Encode(s,&outStream.base,&inStream.base,0,&__lzma_enc_alloc,&__lzma_enc_alloc);
if (SZ_OK==ret){
result=outStream.writeToPos;
}else{//fail
if (ret==SZ_ERROR_READ)
_compress_error_return("in_data->read()");
else if (ret==SZ_ERROR_WRITE)
_compress_error_return("out_code->write()");
else
_compress_error_return("LzmaEnc_Encode()");
}
clear:
#if (!IS_REUSE_compress_handle)
if (s) { LzmaEnc_Destroy(s,&__lzma_enc_alloc,&__lzma_enc_alloc); s=0; }
#endif
_check_compress_result(result,outStream.isCanceled,"_lzma_compress()",errAt);
return result;
}
_def_fun_compressType(_lzma_compressType,"lzma");
static const TCompressPlugin_lzma lzmaCompressPlugin={
{_lzma_compressType,_default_maxCompressedSize,_lzma_setThreadNumber,_lzma_compress},
7,(1<<23),(kDefaultCompressThreadNumber>=2)?2:kDefaultCompressThreadNumber};
#endif//_CompressPlugin_lzma
#ifdef _CompressPlugin_lzma2
#if (_IsNeedIncludeDefaultCompressHead)
# include "MtCoder.h" // "lzma/C/MtCoder.h" for MTCODER__THREADS_MAX
#endif
struct TCompressPlugin_lzma2{
hdiff_TCompress base;
int compress_level; //0..9
UInt32 dict_size; //patch decompress need 4?*lzma_dictSize memory
int thread_num; //1..(64?)
};
static int _lzma2_setThreadNumber(hdiff_TCompress* compressPlugin,int threadNum){
TCompressPlugin_lzma2* plugin=(TCompressPlugin_lzma2*)compressPlugin;
if (threadNum>MTCODER_THREADS_MAX) threadNum=MTCODER_THREADS_MAX;
plugin->thread_num=threadNum;
return threadNum;
}
static hpatch_StreamPos_t _lzma2_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
const TCompressPlugin_lzma2* plugin=(const TCompressPlugin_lzma2*)compressPlugin;
struct __lzma_SeqOutStream_t outStream={{__lzma_SeqOutStream_Write},out_code,0,0};
struct __lzma_SeqInStream_t inStream={{__lzma_SeqInStream_Read},in_data,0};
hpatch_StreamPos_t result=0;
const char* errAt="";
#if (IS_REUSE_compress_handle)
static CLzma2EncHandle s=0;
#else
CLzma2EncHandle s=0;
#endif
CLzma2EncProps props;
Byte properties_size=0;
SRes ret;
hpatch_uint32_t dictSize=plugin->dict_size;
if (!s) s=Lzma2Enc_Create(&__lzma_enc_alloc,&__lzma_enc_alloc);
if (!s) _compress_error_return("LzmaEnc_Create()");
Lzma2EncProps_Init(&props);
props.lzmaProps.level=plugin->compress_level;
props.lzmaProps.dictSize=dictSize;
props.lzmaProps.reduceSize=in_data->streamSize;
props.blockSize=LZMA2_ENC_PROPS_BLOCK_SIZE_AUTO;
props.numTotalThreads=plugin->thread_num;
Lzma2EncProps_Normalize(&props);
if (SZ_OK!=Lzma2Enc_SetProps(s,&props)) _compress_error_return("Lzma2Enc_SetProps()");
# if (IS_NOTICE_compress_canceled)
printf(" (used one lzma2 dictSize: %" PRIu64 " (input data: %" PRIu64 "))\n",
(hpatch_StreamPos_t)props.lzmaProps.dictSize,in_data->streamSize);
# endif
//save properties_size+properties
assert(LZMA_PROPS_SIZE<256);
properties_size=Lzma2Enc_WriteProperties(s);
if (1!=__lzma_SeqOutStream_Write(&outStream.base,&properties_size,1))
_compress_error_return("out_code->write()");
ret=Lzma2Enc_Encode2(s,&outStream.base,0,0,&inStream.base,0,0,0);
if (SZ_OK==ret){
result=outStream.writeToPos;
}else{//fail
if (ret==SZ_ERROR_READ)
_compress_error_return("in_data->read()");
else if (ret==SZ_ERROR_WRITE)
_compress_error_return("out_code->write()");
else
_compress_error_return("Lzma2Enc_Encode2()");
}
clear:
#if (!IS_REUSE_compress_handle)
if (s) { Lzma2Enc_Destroy(s); s=0; }
#endif
_check_compress_result(result,outStream.isCanceled,"_lzma2_compress()",errAt);
return result;
}
_def_fun_compressType(_lzma2_compressType,"lzma2");
static const TCompressPlugin_lzma2 lzma2CompressPlugin={
{_lzma2_compressType,_default_maxCompressedSize,_lzma2_setThreadNumber,_lzma2_compress},
7,(1<<23),kDefaultCompressThreadNumber};
#endif//_CompressPlugin_lzma2
#ifdef _CompressPlugin_7zXZ
#if (_IsNeedIncludeDefaultCompressHead)
# include "XzEnc.h" // "lzma/C/XzEnc.h" https://github.com/sisong/lzma
# include "MtCoder.h" // "lzma/C/MtCoder.h" for MTCODER__THREADS_MAX
# include "7zCrc.h" // CrcGenerateTable()
#endif
#ifndef _init_CompressPlugin_7zXZ_DEF
# define _init_CompressPlugin_7zXZ_DEF
static int _init_CompressPlugin_7zXZ(){
static hpatch_BOOL _isInit=hpatch_FALSE;
if (!_isInit){
CrcGenerateTable();
_isInit=hpatch_TRUE;
}
return 0;
}
#endif
typedef struct{
hdiff_TCompress base;
int compress_level; //0..9
UInt32 dict_size; //patch decompress need 3?*lzma_dictSize memory
int thread_num; //1..(64?)
} TCompressPlugin_7zXZ;
static int _7zXZ_setThreadNumber(hdiff_TCompress* compressPlugin,int threadNum){
TCompressPlugin_lzma2* plugin=(TCompressPlugin_lzma2*)compressPlugin;
if (threadNum>MTCODER_THREADS_MAX) threadNum=MTCODER_THREADS_MAX;
plugin->thread_num=threadNum;
return threadNum;
}
typedef void* _7zXZ_compressHandle;
static _7zXZ_compressHandle _7zXZ_compress_open(const hdiff_TCompress* compressPlugin){
const TCompressPlugin_7zXZ* plugin=(const TCompressPlugin_7zXZ*)compressPlugin;
_7zXZ_compressHandle result=0;
const char* errAt="";
#if (IS_REUSE_compress_handle)
static CXzEncHandle s=0;
#else
CXzEncHandle s=0;
#endif
CXzProps xzprops;
hpatch_uint32_t dictSize=plugin->dict_size;
if (!s) s=XzEnc_Create(&__lzma_enc_alloc,&__lzma_enc_alloc);
if (!s) _compress_error_return("XzEnc_Create()");
XzProps_Init(&xzprops);
xzprops.lzma2Props.lzmaProps.level=plugin->compress_level;
xzprops.lzma2Props.lzmaProps.dictSize=dictSize;
xzprops.lzma2Props.numTotalThreads=plugin->thread_num;
Lzma2EncProps_Normalize(&xzprops.lzma2Props);
xzprops.numTotalThreads=plugin->thread_num;
xzprops.checkId=XZ_CHECK_NO;
if (SZ_OK!=XzEnc_SetProps(s,&xzprops)) _compress_error_return("XzEnc_SetProps()");
return s;
clear:
#if (!IS_REUSE_compress_handle)
if (s) { XzEnc_Destroy(s); s=0; }
#endif
return result;
}
static hpatch_BOOL _7zXZ_compress_close(const hdiff_TCompress* compressPlugin,
_7zXZ_compressHandle compressHandle){
#if (!IS_REUSE_compress_handle)
CXzEncHandle s=(CXzEncHandle)compressHandle;
if (s) { XzEnc_Destroy(s); s=0; }
#endif
return hpatch_TRUE;
}
static hpatch_StreamPos_t _7zXZ_compress_encode(_7zXZ_compressHandle compressHandle,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data,
hpatch_BOOL isWriteHead,hpatch_BOOL isWriteEnd){
struct __lzma_SeqOutStream_t outStream={{__lzma_SeqOutStream_Write},out_code,0,0};
struct __lzma_SeqInStream_t inStream={{__lzma_SeqInStream_Read},in_data,0};
hpatch_StreamPos_t result=0;
const char* errAt="";
CXzEncHandle s=(CXzEncHandle)compressHandle;
SRes ret;
XzEnc_SetDataSize(s,in_data->streamSize);
ret=XzEnc_Encode_Part(s,&outStream.base,&inStream.base,0,isWriteHead,isWriteEnd);
if (SZ_OK==ret){
result=outStream.writeToPos;
}else{//fail
if (ret==SZ_ERROR_READ)
_compress_error_return("in_data->read()");
else if (ret==SZ_ERROR_WRITE)
_compress_error_return("out_code->write()");
else
_compress_error_return("XzEnc_Encode_Part()");
}
clear:
_check_compress_result(result,outStream.isCanceled,"_7zXZ_compress_encode()",errAt);
return result;
}
static hpatch_StreamPos_t _7zXZ_compress(const hdiff_TCompress* compressPlugin,
const hpatch_TStreamOutput* out_code,
const hpatch_TStreamInput* in_data){
const TCompressPlugin_7zXZ* plugin=(const TCompressPlugin_7zXZ*)compressPlugin;
hpatch_StreamPos_t result=0;
const char* errAt="";
_7zXZ_compressHandle s=_7zXZ_compress_open(compressPlugin);
if (!s) _compress_error_return("_7zXZ_compress_open()");
result=_7zXZ_compress_encode(s,out_code,in_data,hpatch_TRUE,hpatch_TRUE);
if (result==0)
_compress_error_return("_7zXZ_compress_encode()");
clear:
if (s) { _7zXZ_compress_close(compressPlugin,s); s=0; }
return result;
}