diff options
Diffstat (limited to 'thirdparty/zstd/decompress/huf_decompress.c')
| -rw-r--r-- | thirdparty/zstd/decompress/huf_decompress.c | 32 |
1 files changed, 8 insertions, 24 deletions
diff --git a/thirdparty/zstd/decompress/huf_decompress.c b/thirdparty/zstd/decompress/huf_decompress.c index 2a1b70ea5e..79ded96bf6 100644 --- a/thirdparty/zstd/decompress/huf_decompress.c +++ b/thirdparty/zstd/decompress/huf_decompress.c @@ -33,37 +33,21 @@ ****************************************************************** */ /* ************************************************************** -* Compiler specifics -****************************************************************/ -#ifdef _MSC_VER /* Visual Studio */ -# define FORCE_INLINE static __forceinline -# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ -#else -# if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */ -# ifdef __GNUC__ -# define FORCE_INLINE static inline __attribute__((always_inline)) -# else -# define FORCE_INLINE static inline -# endif -# else -# define FORCE_INLINE static -# endif /* __STDC_VERSION__ */ -#endif - - -/* ************************************************************** * Dependencies ****************************************************************/ #include <string.h> /* memcpy, memset */ #include "bitstream.h" /* BIT_* */ +#include "compiler.h" #include "fse.h" /* header compression */ #define HUF_STATIC_LINKING_ONLY #include "huf.h" +#include "error_private.h" /* ************************************************************** * Error Management ****************************************************************/ +#define HUF_isError ERR_isError #define HUF_STATIC_ASSERT(c) { enum { HUF_static_assert = 1/(int)(!!(c)) }; } /* use only *after* variable declarations */ @@ -180,7 +164,7 @@ static BYTE HUF_decodeSymbolX2(BIT_DStream_t* Dstream, const HUF_DEltX2* dt, con if (MEM_64bits()) \ HUF_DECODE_SYMBOLX2_0(ptr, DStreamPtr) -FORCE_INLINE size_t HUF_decodeStreamX2(BYTE* p, BIT_DStream_t* const bitDPtr, BYTE* const pEnd, const HUF_DEltX2* const dt, const U32 dtLog) +HINT_INLINE size_t HUF_decodeStreamX2(BYTE* p, BIT_DStream_t* const bitDPtr, BYTE* const pEnd, const HUF_DEltX2* const dt, const U32 dtLog) { BYTE* const pStart = p; @@ -639,7 +623,7 @@ static U32 HUF_decodeLastSymbolX4(void* op, BIT_DStream_t* DStream, const HUF_DE if (MEM_64bits()) \ ptr += HUF_decodeSymbolX4(ptr, DStreamPtr, dt, dtLog) -FORCE_INLINE size_t HUF_decodeStreamX4(BYTE* p, BIT_DStream_t* bitDPtr, BYTE* const pEnd, const HUF_DEltX4* const dt, const U32 dtLog) +HINT_INLINE size_t HUF_decodeStreamX4(BYTE* p, BIT_DStream_t* bitDPtr, BYTE* const pEnd, const HUF_DEltX4* const dt, const U32 dtLog) { BYTE* const pStart = p; @@ -917,11 +901,11 @@ static const algo_time_t algoTime[16 /* Quantization */][3 /* single, double, qu * Tells which decoder is likely to decode faster, * based on a set of pre-determined metrics. * @return : 0==HUF_decompress4X2, 1==HUF_decompress4X4 . -* Assumption : 0 < cSrcSize < dstSize <= 128 KB */ +* Assumption : 0 < cSrcSize, dstSize <= 128 KB */ U32 HUF_selectDecoder (size_t dstSize, size_t cSrcSize) { /* decoder timing evaluation */ - U32 const Q = (U32)(cSrcSize * 16 / dstSize); /* Q < 16 since dstSize > cSrcSize */ + U32 const Q = cSrcSize >= dstSize ? 15 : (U32)(cSrcSize * 16 / dstSize); /* Q < 16 */ U32 const D256 = (U32)(dstSize >> 8); U32 const DTime0 = algoTime[Q][0].tableTime + (algoTime[Q][0].decode256Time * D256); U32 DTime1 = algoTime[Q][1].tableTime + (algoTime[Q][1].decode256Time * D256); @@ -977,7 +961,7 @@ size_t HUF_decompress4X_hufOnly_wksp(HUF_DTable* dctx, void* dst, { /* validation checks */ if (dstSize == 0) return ERROR(dstSize_tooSmall); - if ((cSrcSize >= dstSize) || (cSrcSize <= 1)) return ERROR(corruption_detected); /* invalid */ + if (cSrcSize == 0) return ERROR(corruption_detected); { U32 const algoNb = HUF_selectDecoder(dstSize, cSrcSize); return algoNb ? HUF_decompress4X4_DCtx_wksp(dctx, dst, dstSize, cSrc, cSrcSize, workSpace, wkspSize): |