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vendor: github.com/klauspost/compress v1.17.9

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full diff: https://github.com/klauspost/compress/compare/v1.17.4...v1.17.9

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2024-06-25 22:57:14 +02:00
parent 4c3af9becf
commit a3c8a72b54
20 changed files with 256 additions and 138 deletions
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20
vendor/github.com/klauspost/compress/zstd/blockenc.go generated vendored
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@ -427,6 +427,16 @@ func (b *blockEnc) encodeLits(lits []byte, raw bool) error {
return nil
}
// encodeRLE will encode an RLE block.
func (b *blockEnc) encodeRLE(val byte, length uint32) {
var bh blockHeader
bh.setLast(b.last)
bh.setSize(length)
bh.setType(blockTypeRLE)
b.output = bh.appendTo(b.output)
b.output = append(b.output, val)
}
// fuzzFseEncoder can be used to fuzz the FSE encoder.
func fuzzFseEncoder(data []byte) int {
if len(data) > maxSequences || len(data) < 2 {
@ -479,6 +489,16 @@ func (b *blockEnc) encode(org []byte, raw, rawAllLits bool) error {
if len(b.sequences) == 0 {
return b.encodeLits(b.literals, rawAllLits)
}
if len(b.sequences) == 1 && len(org) > 0 && len(b.literals) <= 1 {
// Check common RLE cases.
seq := b.sequences[0]
if seq.litLen == uint32(len(b.literals)) && seq.offset-3 == 1 {
// Offset == 1 and 0 or 1 literals.
b.encodeRLE(org[0], b.sequences[0].matchLen+zstdMinMatch+seq.litLen)
return nil
}
}
// We want some difference to at least account for the headers.
saved := b.size - len(b.literals) - (b.size >> 6)
if saved < 16 {