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Author SHA1 Message Date
Yann Collet
fc3176f6aa updated NEWS for v1.9.0 2019-04-15 17:30:31 -07:00
Yann Collet
a067441f56
Merge pull request #669 from lz4/fixframe 
Fix lz4frame inefficiency
 2019-04-15 15:32:03 -07:00
Yann Collet
920c988669 simplified output_directive 2019-04-15 14:13:10 -07:00
Yann Collet
55f6f0dd74 fix comma for pedantic 2019-04-15 11:22:25 -07:00
Yann Collet
0d4a974639 Merge branch 'dev' into fixframe 2019-04-15 11:18:33 -07:00
Yann Collet
ac5d2629c1 added a fake initialization to please an analyzer 
which is unable to understand that the variable is necessarily initialized
in spite of an assert just before.
 2019-04-15 11:17:35 -07:00
Yann Collet
ce0f316989 fix fuzzer tests on dirty context 
context is no longer dirty after a failed compressed block.
Actually, all indexes are fine.
It remains compatible with continued streaming, and reset*_fast().
 2019-04-15 11:12:54 -07:00
Yann Collet
474c17cdc4 unified limitedOutput_directive 
between lz4.c and lz4hc.c .
was left in a strange state after the "amalgamation" patch.

Now only 3 directives remain,
same name across both implementations,
single definition place.

Might allow some light simplification due to reduced nb of states possible.
 2019-04-15 11:09:56 -07:00
Yann Collet
799112b812 Merge branch 'dev' into fixframe 2019-04-15 10:46:48 -07:00
Yann Collet
98e5c0062f added more margin for canary in frametest 2019-04-15 10:44:46 -07:00
Yann Collet
1f4a412646 decompress*_fast() function do not generate deprecation warnings 
they are classified as deprecated in the API documentation (lz4.h)
but do not yet trigger a warning,
to give time to existing applications to move away.

Also, the _fast() variants are still ~5% faster than the _safe() ones
after Dave's patch.
 2019-04-15 10:33:40 -07:00
Yann Collet
481a37fe47 fixed lz4frame with linked blocks 
when one block was not compressible,
it would tag the context as `dirty`,
resulting in compression automatically bailing out of all future blocks,
making the rest of the frame uncompressible.
 2019-04-15 10:28:36 -07:00
Yann Collet
3ab916c6a2 frametest: removed uninitialized warning 
was a false positive, but better remove it anyway
 2019-04-15 10:14:36 -07:00
Yann Collet
9c41e5804e assert() the failed test 
ensure canary remains within buffer limits
 2019-04-15 02:11:59 -07:00
Yann Collet
c222dd9010 fixed frametest 
One test could write a canary value out of bound
in exceptional conditions involving multiple flushes
triggered by -s3421 -t462948.
 2019-04-15 01:54:40 -07:00
Yann Collet
3215069741 Merge branch 'dev' of github.com:Cyan4973/lz4 into dev 2019-04-13 15:55:33 -07:00
Yann Collet
749c3400bd fixed incorrect assertion condition 
output can use the full length of output buffer
 2019-04-13 15:55:06 -07:00
Yann Collet
cffde7eeb9
Merge pull request #668 from lz4/visual 
Fix some Visual conversion warnings
 2019-04-13 14:15:48 -07:00
Yann Collet
31763c59fc updated benchmark table 2019-04-12 18:00:43 -07:00
Yann Collet
63bfb64b80 and even more visual conversion warnings 2019-04-12 17:40:23 -07:00
Yann Collet
5fba3ac522
Merge pull request #667 from lz4/pipeMultiple 
Fix combination -m -c
 2019-04-12 17:29:44 -07:00
Yann Collet
8c2429ed1f some more Visual conversion warning 2019-04-12 17:06:53 -07:00
Yann Collet
c7554c3004 fixed minor Visual conversion warnings 2019-04-12 17:03:28 -07:00
Yann Collet
dd43b913a2 fix minor visual warning 
yet some overly cautious overflow risk flag,
while it's actually impossible, due to previous test just one line above.
Changing the cast position, just to be please the thing.
 2019-04-12 16:56:22 -07:00
Yann Collet
f8b7605034 fixed minor Visual warnings 
since Visual 2017,
worries about potential overflow, which are actually impossible.
Replaced (c * a) by (c ? a : 0).
Will likely replaced a * by a cmov.
Probably harmless for performance.
 2019-04-12 16:49:01 -07:00
Yann Collet
9c49e3ca07 added tests for -d -m -c 
seems to work properly
 2019-04-12 16:10:55 -07:00
Yann Collet
e865a3e7ec fixed lz4 -m -c 
can compress multiple files into stdout
 2019-04-12 15:17:48 -07:00
Yann Collet
2de183c92a
Merge pull request #666 from lz4/blockIndep 
added command -BI for "Independent Blocks"
 2019-04-12 14:28:44 -07:00
Yann Collet
20c2a5fc94 added command -BI for "Independent Blocks" 
This is the reverse of `-BD`, and the current default.

This command can be useful to reverse a previous `-BD` command.
It may in the future be more important
if `lz4` switches to generating dependent blocks by default.
 2019-04-12 13:27:11 -07:00
Yann Collet
352bbdb98e updated man page 
with --favor-decSpeed
 2019-04-12 13:15:05 -07:00
Yann Collet
21ff1a839a updated doc to underline difference between block and frame 
as this is a very frequent source of confusion for new users.
 2019-04-12 11:27:44 -07:00
Yann Collet
780aac520b
Merge pull request #665 from lz4/dict 
Dictionary compression
 2019-04-11 15:43:40 -07:00
Yann Collet
723ba904e2
Merge pull request #664 from lz4/maxdist 
introduce LZ4_DISTANCE_MAX build macro
 2019-04-11 15:42:54 -07:00
Yann Collet
bcb26565a7 improved documentation for LZ4 dictionary compression 2019-04-11 15:20:46 -07:00
Yann Collet
8d76c8a44a introduce LZ4_DISTANCE_MAX build macro 
make it possible to generate LZ4-compressed block
with a controlled maximum offset (necessarily <= 65535).

This could be useful for compatibility with decoders
using a very limited memory budget (<64 KB).

Answer #154
 2019-04-11 14:15:33 -07:00
Yann Collet
013fee5665 updated block format with more details on MF_LIMIT 
aka distance from end of block for the last match.
 2019-04-11 13:55:35 -07:00
Yann Collet
5580f4333a
Merge pull request #663 from lz4/headerSize 
made LZ4F_getHeaderSize() public
 2019-04-09 21:30:14 -07:00
Yann Collet
db60ed19b1 added versions in comments 2019-04-09 18:23:32 -07:00
Yann Collet
9e501702bd made LZ4F_getHeaderSize() public 2019-04-09 18:10:58 -07:00
Yann Collet
9fdc1a0118
Merge pull request #659 from lz4/resetFast 
LZ4_resetStream*_fast()
 2019-04-09 16:26:49 -07:00
Yann Collet
d8d5f14138 fixed loadDictHC 
by making a full initialization
instead of a fast reset.
 2019-04-09 15:37:59 -07:00
Yann Collet
887e8a4d01 re-enable LZ4_resetStreamHC() 
towards deprecation, but still available and fully supported
 2019-04-09 14:00:30 -07:00
Yann Collet
14c71dfa9c modified LZ4_initStreamHC() to look like LZ4_initStream() 
it is now a pure initializer, for statically allocated states.
It can initialize any memory area, and because of this, requires size.
 2019-04-09 13:55:42 -07:00
Yann Collet
5ef4f3ce91 check some more initialization result 
ensure it's not NULL.
 2019-04-08 16:51:22 -07:00
Yann Collet
111df0fa45 removed LZ4_stream_t alignment test on Visual 
it fails on x86 32-bit mode :
Visual reports an alignment of 8-bytes (even with alignof())
but actually only align LZ4_stream_t on 4 bytes.
The alignment check then fails, resulting in missed initialization.
 2019-04-08 16:47:21 -07:00
Yann Collet
da19cc79da checkFrame: removed %zu 
not liked by mingw
 2019-04-08 14:21:09 -07:00
Yann Collet
b92681f3c0 fullbench: assert lz4_stream_t initialization 2019-04-08 14:10:59 -07:00
Yann Collet
3f5f10c63e fixed cleaning tmp directory 2019-04-08 14:01:32 -07:00
Yann Collet
249703ae2e slightly faster huge file test 
level down 5->4
size down 6G->5G
 2019-04-08 13:49:26 -07:00
Yann Collet
5db9a2f8b6 added make list target to tests 2019-04-08 13:45:01 -07:00