Apple-2-SW/fhpack
1
0
Fork 0
mirror of https://github.com/fadden/fhpack.git synced 2024-06-18 11:29:43 +00:00
Code Issues Projects Releases Wiki Activity

Update README.md

Browse Source
This commit is contained in:
Andy McFadden 2015-08-02 19:09:17 -07:00
parent bedc71596e
commit c1a17fb059
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
README.md
View File

@ -268,3 +268,10 @@ Note: test/nomatch is not compressible by LZ4 encoding. fhpack was able
to compress it because it zeroed out the "screen holes". When processed to compress it because it zeroed out the "screen holes". When processed
in hole-preservation mode, test/nomatch expands to 8292 bytes. in hole-preservation mode, test/nomatch expands to 8292 bytes.
LZSS, which was used by HardPressed to get reasonable compression with
fast decode speeds, reduces the corpus to 243991 bytes (36.7%), making it
a viable alternative. It's generally inferior to LZ4 as the maximum
match length and offset are much shorter, but that's not too significant
for hi-res images. Literals are identified with individual flag bits,
rather than as runs of bytes, which reduces performance for long strings
of literals.