1370b324cSopenharmony_ci/* LzmaEnc.h -- LZMA Encoder 2370b324cSopenharmony_ci2023-04-13 : Igor Pavlov : Public domain */ 3370b324cSopenharmony_ci 4370b324cSopenharmony_ci#ifndef ZIP7_INC_LZMA_ENC_H 5370b324cSopenharmony_ci#define ZIP7_INC_LZMA_ENC_H 6370b324cSopenharmony_ci 7370b324cSopenharmony_ci#include "7zTypes.h" 8370b324cSopenharmony_ci 9370b324cSopenharmony_ciEXTERN_C_BEGIN 10370b324cSopenharmony_ci 11370b324cSopenharmony_ci#define LZMA_PROPS_SIZE 5 12370b324cSopenharmony_ci 13370b324cSopenharmony_citypedef struct 14370b324cSopenharmony_ci{ 15370b324cSopenharmony_ci int level; /* 0 <= level <= 9 */ 16370b324cSopenharmony_ci UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version 17370b324cSopenharmony_ci (1 << 12) <= dictSize <= (3 << 29) for 64-bit version 18370b324cSopenharmony_ci default = (1 << 24) */ 19370b324cSopenharmony_ci int lc; /* 0 <= lc <= 8, default = 3 */ 20370b324cSopenharmony_ci int lp; /* 0 <= lp <= 4, default = 0 */ 21370b324cSopenharmony_ci int pb; /* 0 <= pb <= 4, default = 2 */ 22370b324cSopenharmony_ci int algo; /* 0 - fast, 1 - normal, default = 1 */ 23370b324cSopenharmony_ci int fb; /* 5 <= fb <= 273, default = 32 */ 24370b324cSopenharmony_ci int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */ 25370b324cSopenharmony_ci int numHashBytes; /* 2, 3 or 4, default = 4 */ 26370b324cSopenharmony_ci unsigned numHashOutBits; /* default = ? */ 27370b324cSopenharmony_ci UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */ 28370b324cSopenharmony_ci unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */ 29370b324cSopenharmony_ci int numThreads; /* 1 or 2, default = 2 */ 30370b324cSopenharmony_ci 31370b324cSopenharmony_ci // int _pad; 32370b324cSopenharmony_ci 33370b324cSopenharmony_ci UInt64 reduceSize; /* estimated size of data that will be compressed. default = (UInt64)(Int64)-1. 34370b324cSopenharmony_ci Encoder uses this value to reduce dictionary size */ 35370b324cSopenharmony_ci 36370b324cSopenharmony_ci UInt64 affinity; 37370b324cSopenharmony_ci} CLzmaEncProps; 38370b324cSopenharmony_ci 39370b324cSopenharmony_civoid LzmaEncProps_Init(CLzmaEncProps *p); 40370b324cSopenharmony_civoid LzmaEncProps_Normalize(CLzmaEncProps *p); 41370b324cSopenharmony_ciUInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); 42370b324cSopenharmony_ci 43370b324cSopenharmony_ci 44370b324cSopenharmony_ci/* ---------- CLzmaEncHandle Interface ---------- */ 45370b324cSopenharmony_ci 46370b324cSopenharmony_ci/* LzmaEnc* functions can return the following exit codes: 47370b324cSopenharmony_ciSRes: 48370b324cSopenharmony_ci SZ_OK - OK 49370b324cSopenharmony_ci SZ_ERROR_MEM - Memory allocation error 50370b324cSopenharmony_ci SZ_ERROR_PARAM - Incorrect paramater in props 51370b324cSopenharmony_ci SZ_ERROR_WRITE - ISeqOutStream write callback error 52370b324cSopenharmony_ci SZ_ERROR_OUTPUT_EOF - output buffer overflow - version with (Byte *) output 53370b324cSopenharmony_ci SZ_ERROR_PROGRESS - some break from progress callback 54370b324cSopenharmony_ci SZ_ERROR_THREAD - error in multithreading functions (only for Mt version) 55370b324cSopenharmony_ci*/ 56370b324cSopenharmony_ci 57370b324cSopenharmony_citypedef struct CLzmaEnc CLzmaEnc; 58370b324cSopenharmony_citypedef CLzmaEnc * CLzmaEncHandle; 59370b324cSopenharmony_ci// Z7_DECLARE_HANDLE(CLzmaEncHandle) 60370b324cSopenharmony_ci 61370b324cSopenharmony_ciCLzmaEncHandle LzmaEnc_Create(ISzAllocPtr alloc); 62370b324cSopenharmony_civoid LzmaEnc_Destroy(CLzmaEncHandle p, ISzAllocPtr alloc, ISzAllocPtr allocBig); 63370b324cSopenharmony_ci 64370b324cSopenharmony_ciSRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); 65370b324cSopenharmony_civoid LzmaEnc_SetDataSize(CLzmaEncHandle p, UInt64 expectedDataSiize); 66370b324cSopenharmony_ciSRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); 67370b324cSopenharmony_ciunsigned LzmaEnc_IsWriteEndMark(CLzmaEncHandle p); 68370b324cSopenharmony_ci 69370b324cSopenharmony_ciSRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStreamPtr outStream, ISeqInStreamPtr inStream, 70370b324cSopenharmony_ci ICompressProgressPtr progress, ISzAllocPtr alloc, ISzAllocPtr allocBig); 71370b324cSopenharmony_ciSRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, 72370b324cSopenharmony_ci int writeEndMark, ICompressProgressPtr progress, ISzAllocPtr alloc, ISzAllocPtr allocBig); 73370b324cSopenharmony_ci 74370b324cSopenharmony_ci 75370b324cSopenharmony_ci/* ---------- One Call Interface ---------- */ 76370b324cSopenharmony_ci 77370b324cSopenharmony_ciSRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, 78370b324cSopenharmony_ci const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, 79370b324cSopenharmony_ci ICompressProgressPtr progress, ISzAllocPtr alloc, ISzAllocPtr allocBig); 80370b324cSopenharmony_ci 81370b324cSopenharmony_ciEXTERN_C_END 82370b324cSopenharmony_ci 83370b324cSopenharmony_ci#endif 84