diff options
Diffstat (limited to 'lib/compress/zstd_compress_literals.c')
| -rw-r--r-- | lib/compress/zstd_compress_literals.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/compress/zstd_compress_literals.c b/lib/compress/zstd_compress_literals.c index 6c133311821e..17e7168d8936 100644 --- a/lib/compress/zstd_compress_literals.c +++ b/lib/compress/zstd_compress_literals.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. + * Copyright (c) 2016-2020, Yann Collet, Facebook, Inc. * All rights reserved. * * This source code is licensed under both the BSD-style license (found in the @@ -18,7 +18,7 @@ size_t ZSTD_noCompressLiterals (void* dst, size_t dstCapacity, const void* src, BYTE* const ostart = (BYTE* const)dst; U32 const flSize = 1 + (srcSize>31) + (srcSize>4095); - RETURN_ERROR_IF(srcSize + flSize > dstCapacity, dstSize_tooSmall); + RETURN_ERROR_IF(srcSize + flSize > dstCapacity, dstSize_tooSmall, ""); switch(flSize) { @@ -36,6 +36,7 @@ size_t ZSTD_noCompressLiterals (void* dst, size_t dstCapacity, const void* src, } memcpy(ostart + flSize, src, srcSize); + DEBUGLOG(5, "Raw literals: %u -> %u", (U32)srcSize, (U32)(srcSize + flSize)); return srcSize + flSize; } @@ -62,6 +63,7 @@ size_t ZSTD_compressRleLiteralsBlock (void* dst, size_t dstCapacity, const void* } ostart[flSize] = *(const BYTE*)src; + DEBUGLOG(5, "RLE literals: %u -> %u", (U32)srcSize, (U32)flSize + 1); return flSize+1; } @@ -80,8 +82,8 @@ size_t ZSTD_compressLiterals (ZSTD_hufCTables_t const* prevHuf, symbolEncodingType_e hType = set_compressed; size_t cLitSize; - DEBUGLOG(5,"ZSTD_compressLiterals (disableLiteralCompression=%i)", - disableLiteralCompression); + DEBUGLOG(5,"ZSTD_compressLiterals (disableLiteralCompression=%i srcSize=%u)", + disableLiteralCompression, (U32)srcSize); /* Prepare nextEntropy assuming reusing the existing table */ memcpy(nextHuf, prevHuf, sizeof(*prevHuf)); @@ -102,14 +104,15 @@ size_t ZSTD_compressLiterals (ZSTD_hufCTables_t const* prevHuf, cLitSize = singleStream ? HUF_compress1X_repeat( ostart+lhSize, dstCapacity-lhSize, src, srcSize, - 255, 11, entropyWorkspace, entropyWorkspaceSize, + HUF_SYMBOLVALUE_MAX, HUF_TABLELOG_DEFAULT, entropyWorkspace, entropyWorkspaceSize, (HUF_CElt*)nextHuf->CTable, &repeat, preferRepeat, bmi2) : HUF_compress4X_repeat( ostart+lhSize, dstCapacity-lhSize, src, srcSize, - 255, 11, entropyWorkspace, entropyWorkspaceSize, + HUF_SYMBOLVALUE_MAX, HUF_TABLELOG_DEFAULT, entropyWorkspace, entropyWorkspaceSize, (HUF_CElt*)nextHuf->CTable, &repeat, preferRepeat, bmi2); if (repeat != HUF_repeat_none) { /* reused the existing table */ + DEBUGLOG(5, "Reusing previous huffman table"); hType = set_repeat; } } @@ -150,5 +153,6 @@ size_t ZSTD_compressLiterals (ZSTD_hufCTables_t const* prevHuf, default: /* not possible : lhSize is {3,4,5} */ assert(0); } + DEBUGLOG(5, "Compressed literals: %u -> %u", (U32)srcSize, (U32)(lhSize+cLitSize)); return lhSize+cLitSize; } |