zstd/compress/zstd_opt.c

19 #define ZSTD_PREDEF_THRESHOLD 1024   /* if srcSize < ZSTD_PREDEF_THRESHOLD, symbols' cost is assumed static, directly determined by pre-defined distributions */
125             const BYTE* const src, size_t const srcSize,
129     DEBUGLOG(5, "ZSTD_rescaleFreqs (srcSize=%u)", (unsigned)srcSize);
133         if (srcSize <= ZSTD_PREDEF_THRESHOLD) {  /* heuristic */
134             DEBUGLOG(5, "(srcSize <= ZSTD_PREDEF_THRESHOLD) => zop_predef");
196                 HIST_count_simple(optPtr->litFreq, &lit, src, srcSize);   /* use raw first block to init statistics */
1040                          const void* src, size_t srcSize,
1048     const BYTE* const iend = istart + srcSize;
1073     ZSTD_rescaleFreqs(optStatePtr, (const BYTE*)src, srcSize, optLevel);
1326         const void* src, size_t srcSize, const ZSTD_dictMode_e dictMode)
1328     return ZSTD_compressBlock_opt_generic(ms, seqStore, rep, src, srcSize, 0 /* optLevel */, dictMode);
1333         const void* src, size_t srcSize, const ZSTD_dictMode_e dictMode)
1335     return ZSTD_compressBlock_opt_generic(ms, seqStore, rep, src, srcSize, 2 /* optLevel */, dictMode);
1340         const void* src, size_t srcSize)
1343     return ZSTD_compressBlock_opt0(ms, seqStore, rep, src, srcSize, ZSTD_noDict);
1358                const void* src, size_t srcSize)
1363     DEBUGLOG(4, "ZSTD_initStats_ultra (srcSize=%zu)", srcSize);
1369     ZSTD_compressBlock_opt2(ms, seqStore, tmpRep, src, srcSize, ZSTD_noDict);   /* generate stats into ms->opt*/
1373     ms->window.base -= srcSize;
1374     ms->window.dictLimit += (U32)srcSize;
1382         const void* src, size_t srcSize)
1384     DEBUGLOG(5, "ZSTD_compressBlock_btultra (srcSize=%zu)", srcSize);
1385     return ZSTD_compressBlock_opt2(ms, seqStore, rep, src, srcSize, ZSTD_noDict);
1390         const void* src, size_t srcSize)
1393     DEBUGLOG(5, "ZSTD_compressBlock_btultra2 (srcSize=%zu)", srcSize);
1403     assert(srcSize <= ZSTD_BLOCKSIZE_MAX);
1408       && (srcSize > ZSTD_PREDEF_THRESHOLD)
1410         ZSTD_initStats_ultra(ms, seqStore, rep, src, srcSize);
1413     return ZSTD_compressBlock_opt2(ms, seqStore, rep, src, srcSize, ZSTD_noDict);
1418         const void* src, size_t srcSize)
1420     return ZSTD_compressBlock_opt0(ms, seqStore, rep, src, srcSize, ZSTD_dictMatchState);
1425         const void* src, size_t srcSize)
1427     return ZSTD_compressBlock_opt2(ms, seqStore, rep, src, srcSize, ZSTD_dictMatchState);
1432         const void* src, size_t srcSize)
1434     return ZSTD_compressBlock_opt0(ms, seqStore, rep, src, srcSize, ZSTD_extDict);
1439         const void* src, size_t srcSize)
1441     return ZSTD_compressBlock_opt2(ms, seqStore, rep, src, srcSize, ZSTD_extDict);