diff options
Diffstat (limited to 'vendor/github.com/klauspost/compress/flate/level4.go')
| -rw-r--r-- | vendor/github.com/klauspost/compress/flate/level4.go | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/vendor/github.com/klauspost/compress/flate/level4.go b/vendor/github.com/klauspost/compress/flate/level4.go index f3ecc9c4d..e62f0c02b 100644 --- a/vendor/github.com/klauspost/compress/flate/level4.go +++ b/vendor/github.com/klauspost/compress/flate/level4.go @@ -13,7 +13,7 @@ func (e *fastEncL4) Encode(dst *tokens, src []byte) { inputMargin = 12 - 1 minNonLiteralBlockSize = 1 + 1 + inputMargin ) - if debugDecode && e.cur < 0 { + if debugDeflate && e.cur < 0 { panic(fmt.Sprint("e.cur < 0: ", e.cur)) } // Protect against e.cur wraparound. @@ -92,24 +92,24 @@ func (e *fastEncL4) Encode(dst *tokens, src []byte) { sCandidate := e.table[nextHashS] lCandidate := e.bTable[nextHashL] next := load6432(src, nextS) - entry := tableEntry{offset: s + e.cur, val: uint32(cv)} + entry := tableEntry{offset: s + e.cur} e.table[nextHashS] = entry e.bTable[nextHashL] = entry t = lCandidate.offset - e.cur - if s-t < maxMatchOffset && uint32(cv) == lCandidate.val { + if s-t < maxMatchOffset && uint32(cv) == load3232(src, lCandidate.offset-e.cur) { // We got a long match. Use that. break } t = sCandidate.offset - e.cur - if s-t < maxMatchOffset && uint32(cv) == sCandidate.val { + if s-t < maxMatchOffset && uint32(cv) == load3232(src, sCandidate.offset-e.cur) { // Found a 4 match... lCandidate = e.bTable[hash7(next, tableBits)] // If the next long is a candidate, check if we should use that instead... lOff := nextS - (lCandidate.offset - e.cur) - if lOff < maxMatchOffset && lCandidate.val == uint32(next) { + if lOff < maxMatchOffset && load3232(src, lCandidate.offset-e.cur) == uint32(next) { l1, l2 := matchLen(src[s+4:], src[t+4:]), matchLen(src[nextS+4:], src[nextS-lOff+4:]) if l2 > l1 { s = nextS @@ -137,7 +137,7 @@ func (e *fastEncL4) Encode(dst *tokens, src []byte) { if nextEmit < s { emitLiteral(dst, src[nextEmit:s]) } - if false { + if debugDeflate { if t >= s { panic("s-t") } @@ -160,8 +160,8 @@ func (e *fastEncL4) Encode(dst *tokens, src []byte) { // Index first pair after match end. if int(s+8) < len(src) { cv := load6432(src, s) - e.table[hash4x64(cv, tableBits)] = tableEntry{offset: s + e.cur, val: uint32(cv)} - e.bTable[hash7(cv, tableBits)] = tableEntry{offset: s + e.cur, val: uint32(cv)} + e.table[hash4x64(cv, tableBits)] = tableEntry{offset: s + e.cur} + e.bTable[hash7(cv, tableBits)] = tableEntry{offset: s + e.cur} } goto emitRemainder } @@ -171,20 +171,20 @@ func (e *fastEncL4) Encode(dst *tokens, src []byte) { i := nextS if i < s-1 { cv := load6432(src, i) - t := tableEntry{offset: i + e.cur, val: uint32(cv)} - t2 := tableEntry{val: uint32(cv >> 8), offset: t.offset + 1} + t := tableEntry{offset: i + e.cur} + t2 := tableEntry{offset: t.offset + 1} e.bTable[hash7(cv, tableBits)] = t e.bTable[hash7(cv>>8, tableBits)] = t2 - e.table[hash4u(t2.val, tableBits)] = t2 + e.table[hash4u(uint32(cv>>8), tableBits)] = t2 i += 3 for ; i < s-1; i += 3 { cv := load6432(src, i) - t := tableEntry{offset: i + e.cur, val: uint32(cv)} - t2 := tableEntry{val: uint32(cv >> 8), offset: t.offset + 1} + t := tableEntry{offset: i + e.cur} + t2 := tableEntry{offset: t.offset + 1} e.bTable[hash7(cv, tableBits)] = t e.bTable[hash7(cv>>8, tableBits)] = t2 - e.table[hash4u(t2.val, tableBits)] = t2 + e.table[hash4u(uint32(cv>>8), tableBits)] = t2 } } } @@ -195,8 +195,8 @@ func (e *fastEncL4) Encode(dst *tokens, src []byte) { o := e.cur + s - 1 prevHashS := hash4x64(x, tableBits) prevHashL := hash7(x, tableBits) - e.table[prevHashS] = tableEntry{offset: o, val: uint32(x)} - e.bTable[prevHashL] = tableEntry{offset: o, val: uint32(x)} + e.table[prevHashS] = tableEntry{offset: o} + e.bTable[prevHashL] = tableEntry{offset: o} cv = x >> 8 } |