Updating to new OTS repo from https://github.com/khaledhosny/ots.git

third_party/lzma_sdk/LzmaDec.h

-/* LzmaDec.h -- LZMA Decoder
-2009-02-07 : Igor Pavlov : Public domain
-in the public domain */
-
-#ifndef __LZMA_DEC_H
-#define __LZMA_DEC_H
-
-#include "Types.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* #define _LZMA_PROB32 */
-/* _LZMA_PROB32 can increase the speed on some CPUs,
-   but memory usage for CLzmaDec::probs will be doubled in that case */
-
-#ifdef _LZMA_PROB32
-#define CLzmaProb UInt32
-#else
-#define CLzmaProb UInt16
-#endif
-
-
-/* ---------- LZMA Properties ---------- */
-
-#define LZMA_PROPS_SIZE 5
-
-typedef struct _CLzmaProps
-{
-  unsigned lc, lp, pb;
-  UInt32 dicSize;
-} CLzmaProps;
-
-/* LzmaProps_Decode - decodes properties
-Returns:
-  SZ_OK
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-
-SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
-
-
-/* ---------- LZMA Decoder state ---------- */
-
-/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case.
-   Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */
-
-#define LZMA_REQUIRED_INPUT_MAX 20
-
-typedef struct
-{
-  CLzmaProps prop;
-  CLzmaProb *probs;
-  Byte *dic;
-  const Byte *buf;
-  UInt32 range, code;
-  SizeT dicPos;
-  SizeT dicBufSize;
-  UInt32 processedPos;
-  UInt32 checkDicSize;
-  unsigned state;
-  UInt32 reps[4];
-  unsigned remainLen;
-  int needFlush;
-  int needInitState;
-  UInt32 numProbs;
-  unsigned tempBufSize;
-  Byte tempBuf[LZMA_REQUIRED_INPUT_MAX];
-} CLzmaDec;
-
-#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; }
-
-void LzmaDec_Init(CLzmaDec *p);
-
-/* There are two types of LZMA streams:
-     0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
-     1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */
-
-typedef enum
-{
-  LZMA_FINISH_ANY,   /* finish at any point */
-  LZMA_FINISH_END    /* block must be finished at the end */
-} ELzmaFinishMode;
-
-/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!!
-
-   You must use LZMA_FINISH_END, when you know that current output buffer
-   covers last bytes of block. In other cases you must use LZMA_FINISH_ANY.
-
-   If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK,
-   and output value of destLen will be less than output buffer size limit.
-   You can check status result also.
-
-   You can use multiple checks to test data integrity after full decompression:
-     1) Check Result and "status" variable.
-     2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize.
-     3) Check that output(srcLen) = compressedSize, if you know real compressedSize.
-        You must use correct finish mode in that case. */
-
-typedef enum
-{
-  LZMA_STATUS_NOT_SPECIFIED,               /* use main error code instead */
-  LZMA_STATUS_FINISHED_WITH_MARK,          /* stream was finished with end mark. */
-  LZMA_STATUS_NOT_FINISHED,                /* stream was not finished */
-  LZMA_STATUS_NEEDS_MORE_INPUT,            /* you must provide more input bytes */
-  LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK  /* there is probability that stream was finished without end mark */
-} ELzmaStatus;
-
-/* ELzmaStatus is used only as output value for function call */
-
-
-/* ---------- Interfaces ---------- */
-
-/* There are 3 levels of interfaces:
-     1) Dictionary Interface
-     2) Buffer Interface
-     3) One Call Interface
-   You can select any of these interfaces, but don't mix functions from different
-   groups for same object. */
-
-
-/* There are two variants to allocate state for Dictionary Interface:
-     1) LzmaDec_Allocate / LzmaDec_Free
-     2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs
-   You can use variant 2, if you set dictionary buffer manually.
-   For Buffer Interface you must always use variant 1.
-
-LzmaDec_Allocate* can return:
-  SZ_OK
-  SZ_ERROR_MEM         - Memory allocation error
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-   
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc);
-
-SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
-
-/* ---------- Dictionary Interface ---------- */
-
-/* You can use it, if you want to eliminate the overhead for data copying from
-   dictionary to some other external buffer.
-   You must work with CLzmaDec variables directly in this interface.
-
-   STEPS:
-     LzmaDec_Constr()
-     LzmaDec_Allocate()
-     for (each new stream)
-     {
-       LzmaDec_Init()
-       while (it needs more decompression)
-       {
-         LzmaDec_DecodeToDic()
-         use data from CLzmaDec::dic and update CLzmaDec::dicPos
-       }
-     }
-     LzmaDec_Free()
-*/
-
-/* LzmaDec_DecodeToDic
-   
-   The decoding to internal dictionary buffer (CLzmaDec::dic).
-   You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!!
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (dicLimit).
-  LZMA_FINISH_ANY - Decode just dicLimit bytes.
-  LZMA_FINISH_END - Stream must be finished after dicLimit.
-
-Returns:
-  SZ_OK
-    status:
-      LZMA_STATUS_FINISHED_WITH_MARK
-      LZMA_STATUS_NOT_FINISHED
-      LZMA_STATUS_NEEDS_MORE_INPUT
-      LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
-  SZ_ERROR_DATA - Data error
-*/
-
-SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit,
-    const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-
-/* ---------- Buffer Interface ---------- */
-
-/* It's zlib-like interface.
-   See LzmaDec_DecodeToDic description for information about STEPS and return results,
-   but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need
-   to work with CLzmaDec variables manually.
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (*destLen).
-  LZMA_FINISH_ANY - Decode just destLen bytes.
-  LZMA_FINISH_END - Stream must be finished after (*destLen).
-*/
-
-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen,
-    const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-
-/* ---------- One Call Interface ---------- */
-
-/* LzmaDecode
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (*destLen).
-  LZMA_FINISH_ANY - Decode just destLen bytes.
-  LZMA_FINISH_END - Stream must be finished after (*destLen).
-
-Returns:
-  SZ_OK
-    status:
-      LZMA_STATUS_FINISHED_WITH_MARK
-      LZMA_STATUS_NOT_FINISHED
-      LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
-  SZ_ERROR_DATA - Data error
-  SZ_ERROR_MEM  - Memory allocation error
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-  SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
-*/
-
-SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
-    const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
-    ELzmaStatus *status, ISzAlloc *alloc);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif