This is necessary so that c/image tests can pass.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>
This commit is contained in:
Miloslav Trmač
2024-02-02 23:19:31 +01:00
parent 8f2a7c65ff
commit c3e2b20299
58 changed files with 465 additions and 249 deletions

View File

@@ -3,7 +3,6 @@
before:
hooks:
- ./gen.sh
- go install mvdan.cc/garble@v0.10.1
builds:
-
@@ -32,7 +31,6 @@ builds:
- mips64le
goarm:
- 7
gobinary: garble
-
id: "s2d"
binary: s2d
@@ -59,7 +57,6 @@ builds:
- mips64le
goarm:
- 7
gobinary: garble
-
id: "s2sx"
binary: s2sx
@@ -87,7 +84,6 @@ builds:
- mips64le
goarm:
- 7
gobinary: garble
archives:
-

View File

@@ -16,6 +16,14 @@ This package provides various compression algorithms.
# changelog
* Jan 26th, 2024 - [v1.17.5](https://github.com/klauspost/compress/releases/tag/v1.17.5)
* flate: Fix reset with dictionary on custom window encodes by @klauspost in https://github.com/klauspost/compress/pull/912
* zstd: Add Frame header encoding and stripping by @klauspost in https://github.com/klauspost/compress/pull/908
* zstd: Limit better/best default window to 8MB by @klauspost in https://github.com/klauspost/compress/pull/913
* zstd: Speed improvements by @greatroar in https://github.com/klauspost/compress/pull/896 https://github.com/klauspost/compress/pull/910
* s2: Fix callbacks for skippable blocks and disallow 0xfe (Padding) by @Jille in https://github.com/klauspost/compress/pull/916 https://github.com/klauspost/compress/pull/917
https://github.com/klauspost/compress/pull/919 https://github.com/klauspost/compress/pull/918
* Dec 1st, 2023 - [v1.17.4](https://github.com/klauspost/compress/releases/tag/v1.17.4)
* huff0: Speed up symbol counting by @greatroar in https://github.com/klauspost/compress/pull/887
* huff0: Remove byteReader by @greatroar in https://github.com/klauspost/compress/pull/886

View File

@@ -201,14 +201,6 @@ encodeLoop:
if delta >= e.maxMatchOff || delta <= 0 || load3232(src, offset) != first {
return
}
if debugAsserts {
if offset >= s {
panic(fmt.Sprintf("offset: %d - s:%d - rep: %d - cur :%d - max: %d", offset, s, rep, e.cur, e.maxMatchOff))
}
if !bytes.Equal(src[s:s+4], src[offset:offset+4]) {
panic(fmt.Sprintf("first match mismatch: %v != %v, first: %08x", src[s:s+4], src[offset:offset+4], first))
}
}
// Try to quick reject if we already have a long match.
if m.length > 16 {
left := len(src) - int(m.s+m.length)
@@ -227,8 +219,10 @@ encodeLoop:
}
}
l := 4 + e.matchlen(s+4, offset+4, src)
if true {
if m.rep <= 0 {
// Extend candidate match backwards as far as possible.
// Do not extend repeats as we can assume they are optimal
// and offsets change if s == nextEmit.
tMin := s - e.maxMatchOff
if tMin < 0 {
tMin = 0
@@ -239,7 +233,14 @@ encodeLoop:
l++
}
}
if debugAsserts {
if offset >= s {
panic(fmt.Sprintf("offset: %d - s:%d - rep: %d - cur :%d - max: %d", offset, s, rep, e.cur, e.maxMatchOff))
}
if !bytes.Equal(src[s:s+l], src[offset:offset+l]) {
panic(fmt.Sprintf("second match mismatch: %v != %v, first: %08x", src[s:s+4], src[offset:offset+4], first))
}
}
cand := match{offset: offset, s: s, length: l, rep: rep}
cand.estBits(bitsPerByte)
if m.est >= highScore || cand.est-m.est+(cand.s-m.s)*bitsPerByte>>10 < 0 {
@@ -336,24 +337,31 @@ encodeLoop:
}
if debugAsserts {
if best.offset >= best.s {
panic(fmt.Sprintf("best.offset > s: %d >= %d", best.offset, best.s))
}
if best.s < nextEmit {
panic(fmt.Sprintf("s %d < nextEmit %d", best.s, nextEmit))
}
if best.offset < s-e.maxMatchOff {
panic(fmt.Sprintf("best.offset < s-e.maxMatchOff: %d < %d", best.offset, s-e.maxMatchOff))
}
if !bytes.Equal(src[best.s:best.s+best.length], src[best.offset:best.offset+best.length]) {
panic(fmt.Sprintf("match mismatch: %v != %v", src[best.s:best.s+best.length], src[best.offset:best.offset+best.length]))
}
}
// We have a match, we can store the forward value
s = best.s
if best.rep > 0 {
var seq seq
seq.matchLen = uint32(best.length - zstdMinMatch)
if debugAsserts && s < nextEmit {
panic("s < nextEmit")
}
addLiterals(&seq, best.s)
// Repeat. If bit 4 is set, this is a non-lit repeat.
seq.offset = uint32(best.rep & 3)
if debugSequences {
println("repeat sequence", seq, "next s:", s)
println("repeat sequence", seq, "next s:", best.s, "off:", best.s-best.offset)
}
blk.sequences = append(blk.sequences, seq)
@@ -396,7 +404,6 @@ encodeLoop:
// A 4-byte match has been found. Update recent offsets.
// We'll later see if more than 4 bytes.
s = best.s
t := best.offset
offset1, offset2, offset3 = s-t, offset1, offset2