mirror of
https://github.com/containers/skopeo.git
synced 2025-09-23 10:59:25 +00:00
Update vendor containers/(common,image)
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
35
vendor/github.com/klauspost/compress/flate/level2.go
generated
vendored
35
vendor/github.com/klauspost/compress/flate/level2.go
generated
vendored
@@ -16,6 +16,7 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
const (
|
||||
inputMargin = 12 - 1
|
||||
minNonLiteralBlockSize = 1 + 1 + inputMargin
|
||||
hashBytes = 5
|
||||
)
|
||||
|
||||
if debugDeflate && e.cur < 0 {
|
||||
@@ -66,7 +67,7 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
sLimit := int32(len(src) - inputMargin)
|
||||
|
||||
// nextEmit is where in src the next emitLiteral should start from.
|
||||
cv := load3232(src, s)
|
||||
cv := load6432(src, s)
|
||||
for {
|
||||
// When should we start skipping if we haven't found matches in a long while.
|
||||
const skipLog = 5
|
||||
@@ -75,7 +76,7 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
nextS := s
|
||||
var candidate tableEntry
|
||||
for {
|
||||
nextHash := hash4u(cv, bTableBits)
|
||||
nextHash := hashLen(cv, bTableBits, hashBytes)
|
||||
s = nextS
|
||||
nextS = s + doEvery + (s-nextEmit)>>skipLog
|
||||
if nextS > sLimit {
|
||||
@@ -84,16 +85,16 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
candidate = e.table[nextHash]
|
||||
now := load6432(src, nextS)
|
||||
e.table[nextHash] = tableEntry{offset: s + e.cur}
|
||||
nextHash = hash4u(uint32(now), bTableBits)
|
||||
nextHash = hashLen(now, bTableBits, hashBytes)
|
||||
|
||||
offset := s - (candidate.offset - e.cur)
|
||||
if offset < maxMatchOffset && cv == load3232(src, candidate.offset-e.cur) {
|
||||
if offset < maxMatchOffset && uint32(cv) == load3232(src, candidate.offset-e.cur) {
|
||||
e.table[nextHash] = tableEntry{offset: nextS + e.cur}
|
||||
break
|
||||
}
|
||||
|
||||
// Do one right away...
|
||||
cv = uint32(now)
|
||||
cv = now
|
||||
s = nextS
|
||||
nextS++
|
||||
candidate = e.table[nextHash]
|
||||
@@ -101,10 +102,10 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
e.table[nextHash] = tableEntry{offset: s + e.cur}
|
||||
|
||||
offset = s - (candidate.offset - e.cur)
|
||||
if offset < maxMatchOffset && cv == load3232(src, candidate.offset-e.cur) {
|
||||
if offset < maxMatchOffset && uint32(cv) == load3232(src, candidate.offset-e.cur) {
|
||||
break
|
||||
}
|
||||
cv = uint32(now)
|
||||
cv = now
|
||||
}
|
||||
|
||||
// A 4-byte match has been found. We'll later see if more than 4 bytes
|
||||
@@ -154,9 +155,9 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
|
||||
if s >= sLimit {
|
||||
// Index first pair after match end.
|
||||
if int(s+l+4) < len(src) {
|
||||
cv := load3232(src, s)
|
||||
e.table[hash4u(cv, bTableBits)] = tableEntry{offset: s + e.cur}
|
||||
if int(s+l+8) < len(src) {
|
||||
cv := load6432(src, s)
|
||||
e.table[hashLen(cv, bTableBits, hashBytes)] = tableEntry{offset: s + e.cur}
|
||||
}
|
||||
goto emitRemainder
|
||||
}
|
||||
@@ -164,15 +165,15 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
// Store every second hash in-between, but offset by 1.
|
||||
for i := s - l + 2; i < s-5; i += 7 {
|
||||
x := load6432(src, i)
|
||||
nextHash := hash4u(uint32(x), bTableBits)
|
||||
nextHash := hashLen(x, bTableBits, hashBytes)
|
||||
e.table[nextHash] = tableEntry{offset: e.cur + i}
|
||||
// Skip one
|
||||
x >>= 16
|
||||
nextHash = hash4u(uint32(x), bTableBits)
|
||||
nextHash = hashLen(x, bTableBits, hashBytes)
|
||||
e.table[nextHash] = tableEntry{offset: e.cur + i + 2}
|
||||
// Skip one
|
||||
x >>= 16
|
||||
nextHash = hash4u(uint32(x), bTableBits)
|
||||
nextHash = hashLen(x, bTableBits, hashBytes)
|
||||
e.table[nextHash] = tableEntry{offset: e.cur + i + 4}
|
||||
}
|
||||
|
||||
@@ -184,17 +185,17 @@ func (e *fastEncL2) Encode(dst *tokens, src []byte) {
|
||||
// three load32 calls.
|
||||
x := load6432(src, s-2)
|
||||
o := e.cur + s - 2
|
||||
prevHash := hash4u(uint32(x), bTableBits)
|
||||
prevHash2 := hash4u(uint32(x>>8), bTableBits)
|
||||
prevHash := hashLen(x, bTableBits, hashBytes)
|
||||
prevHash2 := hashLen(x>>8, bTableBits, hashBytes)
|
||||
e.table[prevHash] = tableEntry{offset: o}
|
||||
e.table[prevHash2] = tableEntry{offset: o + 1}
|
||||
currHash := hash4u(uint32(x>>16), bTableBits)
|
||||
currHash := hashLen(x>>16, bTableBits, hashBytes)
|
||||
candidate = e.table[currHash]
|
||||
e.table[currHash] = tableEntry{offset: o + 2}
|
||||
|
||||
offset := s - (candidate.offset - e.cur)
|
||||
if offset > maxMatchOffset || uint32(x>>16) != load3232(src, candidate.offset-e.cur) {
|
||||
cv = uint32(x >> 24)
|
||||
cv = x >> 24
|
||||
s++
|
||||
break
|
||||
}
|
||||
|
Reference in New Issue
Block a user