diff options
Diffstat (limited to 'vendor/github.com/klauspost/compress/zstd/blockdec.go')
| -rw-r--r-- | vendor/github.com/klauspost/compress/zstd/blockdec.go | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/blockdec.go b/vendor/github.com/klauspost/compress/zstd/blockdec.go index 19181caea..4a14242c7 100644 --- a/vendor/github.com/klauspost/compress/zstd/blockdec.go +++ b/vendor/github.com/klauspost/compress/zstd/blockdec.go @@ -461,26 +461,22 @@ func (b *blockDec) decodeCompressed(hist *history) error { if huff == nil { huff = &huff0.Scratch{} } - huff.Out = b.literalBuf[:0] huff, literals, err = huff0.ReadTable(literals, huff) if err != nil { println("reading huffman table:", err) return err } // Use our out buffer. - huff.Out = b.literalBuf[:0] - huff.MaxDecodedSize = litRegenSize if fourStreams { - literals, err = huff.Decompress4X(literals, litRegenSize) + literals, err = huff.Decoder().Decompress4X(b.literalBuf[:0:litRegenSize], literals) } else { - literals, err = huff.Decompress1X(literals) + literals, err = huff.Decoder().Decompress1X(b.literalBuf[:0:litRegenSize], literals) } if err != nil { println("decoding compressed literals:", err) return err } // Make sure we don't leak our literals buffer - huff.Out = nil if len(literals) != litRegenSize { return fmt.Errorf("literal output size mismatch want %d, got %d", litRegenSize, len(literals)) } @@ -631,15 +627,12 @@ func (b *blockDec) decodeCompressed(hist *history) error { var err error // Use our out buffer. huff = hist.huffTree - huff.Out = b.literalBuf[:0] - huff.MaxDecodedSize = litRegenSize if fourStreams { - literals, err = huff.Decompress4X(literals, litRegenSize) + literals, err = huff.Decoder().Decompress4X(b.literalBuf[:0:litRegenSize], literals) } else { - literals, err = huff.Decompress1X(literals) + literals, err = huff.Decoder().Decompress1X(b.literalBuf[:0:litRegenSize], literals) } // Make sure we don't leak our literals buffer - huff.Out = nil if err != nil { println("decompressing literals:", err) return err @@ -649,12 +642,13 @@ func (b *blockDec) decodeCompressed(hist *history) error { } } else { if hist.huffTree != nil && huff != nil { - huffDecoderPool.Put(hist.huffTree) + if hist.dict == nil || hist.dict.litDec != hist.huffTree { + huffDecoderPool.Put(hist.huffTree) + } hist.huffTree = nil } } if huff != nil { - huff.Out = nil hist.huffTree = huff } if debug { @@ -687,14 +681,20 @@ func (b *blockDec) decodeCompressed(hist *history) error { // If only recent offsets were not transferred, this would be an obvious win. // Also, if first 3 sequences don't reference recent offsets, all sequences can be decoded. - if err := seqs.initialize(br, hist, literals, b.dst); err != nil { - println("initializing sequences:", err) - return err - } hbytes := hist.b if len(hbytes) > hist.windowSize { hbytes = hbytes[len(hbytes)-hist.windowSize:] + // We do not need history any more. + if hist.dict != nil { + hist.dict.content = nil + } } + + if err := seqs.initialize(br, hist, literals, b.dst); err != nil { + println("initializing sequences:", err) + return err + } + err = seqs.decode(nSeqs, br, hbytes) if err != nil { return err |