Yann Collet
82c1aed419
improved level 11 speed
2017-11-03 00:59:05 -07:00
Yann Collet
890c0553d0
optimized skip strategy for level 12
2017-11-03 00:15:52 -07:00
Yann Collet
05d78eb817
new level 11 uses 512 attempts
2017-11-02 19:50:08 -07:00
Yann Collet
a1c5343d89
more generic skip formula
...
improving speed
2017-11-02 18:54:18 -07:00
Yann Collet
e06cb03c11
small adaptations for intermediate level 11
2017-11-02 16:25:10 -07:00
Yann Collet
4b81885800
partial search, while preserving compression ratio
...
tag interesting places
2017-11-02 15:37:18 -07:00
Yann Collet
bd992f12e4
searching match leading strictly farther does not work
...
sometimes, it's better to re-use same match but start it later,
in order to get shorter matchlength code
2017-11-02 15:05:45 -07:00
Yann Collet
8e16eb0cd1
fixed last lost bytes in maximal mode
...
even gained 2 bytes on calgary.tar...
added conditional traces `g_debuglog_enable`
2017-11-02 14:53:06 -07:00
Yann Collet
0ff4df1b94
changed strategy : opt[] path is complete after each match
...
previous strategy would leave a few "bad choices"
on the ground they would be fixed later,
but that requires passing through each position to make the fix
and cannot give the end position of the last useful match.
2017-11-02 13:44:57 -07:00
Yann Collet
cc4a109b0d
Merge pull request #415 from lz4/fasterDecodingXp
...
Faster decoding xp
2017-11-01 09:58:49 -07:00
Yann Collet
15b0d229c1
Merge branch 'dev' into btopt
2017-10-31 17:55:01 -07:00
Yann Collet
a5731d6b26
minor change, to help store forwarding
...
in a marginal case (offset==4)
2017-10-31 15:51:56 -07:00
Yann Collet
9378f76e41
extended shortcut match length to 18
2017-10-31 14:20:25 -07:00
Yann Collet
ace334a4c9
minor : coding style : use ML_MASK constant
2017-10-31 12:22:15 -07:00
Yann Collet
3f173052ae
added comments, as suggested by @terrelln
2017-10-31 11:49:57 -07:00
Yann Collet
931c5c20d0
fixed minor overflow mistake in optimal parser
...
saving 20 bytes on calgary.tar
2017-10-30 17:47:54 -07:00
Yann Collet
ab4bd93f59
fixed minor initialization warning
2017-10-30 16:10:25 -07:00
Yann Collet
e0914ff70c
more complete shortcut - passes tests
2017-10-30 16:07:15 -07:00
mikir
63a7f34fee
Separated visibility from LZ4LIB_API macro.
2017-10-30 13:44:24 +01:00
Yann Collet
a31b7058cb
small modification of lz4 decoder to shortcut common case (short branch).
2017-10-25 10:10:53 +02:00
Yann Collet
16a4337473
added hash chain with conditional length
...
not a success yet
2017-10-25 07:07:08 +02:00
Yann Collet
a12cdf00c3
lz4opt: added hash chain search
2017-10-20 17:04:29 -07:00
Yann Collet
fd6bd5107b
switched many types to int
2017-10-20 15:33:52 -07:00
Yann Collet
d813134619
removed SET_PRICE macro
2017-10-20 13:44:49 -07:00
Yann Collet
fa064c8a8c
removed one macro usage
2017-10-20 13:32:45 -07:00
Yann Collet
ee62faee08
minor refactor
...
reduce variable scope
remove one macro usage
2017-10-20 12:05:00 -07:00
Yann Collet
fc879fe170
lz4opt: refactor sequence reverse traversal
2017-10-20 11:32:15 -07:00
Yann Collet
c058753393
refactor variable matchnum
...
separate initial and iterative search
renamed nb_matches
2017-10-20 11:24:56 -07:00
Yann Collet
7bb0a617ee
simplified initial cost conditions
...
llen integrated in opt[]
2017-10-20 11:00:10 -07:00
Yann Collet
6cec68de39
added assert
2017-10-19 16:47:25 -07:00
Yann Collet
ac2ad52257
renamed last_pos into last_match_pos
2017-10-19 16:43:36 -07:00
Yann Collet
708e2cbb60
simplified early exit when single solution
2017-10-19 16:39:40 -07:00
Rei Odaira
73bcf90e51
Use the optimization level of O2 for the decompression functions on ppc64le with gcc, to avoid harmful unrolling and SIMDization with O3
2017-10-13 14:53:37 -05:00
Yann Collet
a4314829db
fused getLongerMatch and getWiderMatch
2017-10-09 01:50:28 -07:00
Yann Collet
97c18f5f0e
re-inserted last byte test in widerMatch
2017-10-09 01:44:05 -07:00
Yann Collet
bdca63ed69
early out is not better
2017-10-09 00:36:47 -07:00
Yann Collet
1ee17e4eb8
optional fuse
2017-10-09 00:31:12 -07:00
Yann Collet
b9459faeb2
improved search of rep-1 patterns
2017-10-08 23:55:42 -07:00
Yann Collet
f1fa91d6fc
insertAndFindBestMatch defers to insertAndGetWiderMatch
2017-10-08 23:40:21 -07:00
Yann Collet
87968517f9
fixed decoding block checksum in lz4frame
2017-10-04 15:24:08 -07:00
Yann Collet
f6b31bf0d0
fix #404
...
static analyzer `cppcheck` complains about a shift-by-32 on a 32 bits value,
which is an undefined behavior.
However, the flagged code path is never triggered in 32-bits mode,
(actually, it's not even generated if DCE kicks in),
the shift-by-32 is necessarily performed on a 64-bits value.
While it doesn't change anything regarding lz4 code generation, for both 32 and 64 bits mode,
(can be checked by md5sum on the generated binary),
the shift has been rewritten in a way which should please this static analyzer,
since it now pretends to shift by 16 on 32-bits cpu (note : it doesn't matter since the code will not even be generated in this case).
Note : this is a blind fix, the new code has not been tested with cppcheck, because cppcheck only works on Windows.
Other static analyzer, such as scan-build, do not trigger this false positive.
2017-09-30 10:35:55 -07:00
Yann Collet
ceb868f442
minor lz4frame code refactor
...
try to improve code readability.
minor optimization on condition to preserve history.
2017-09-23 15:06:24 -07:00
W. Felix Handte
77f7245ea7
Fix Segfault When Copying Dict
...
dctx must have been initialized before we can copy the dictionary in.
2017-09-22 13:20:49 -07:00
Yann Collet
a30cba08f4
fixed a bunch of -Wcomma warnings
...
reported by @rvandermeulen (#398 )
2017-09-10 14:32:38 -07:00
Yann Collet
b500c5282e
fix #397 : decompression failed when using a combination of extDict + low memory address
...
Reported and fixed by @jscheid
Note : we are missing a test case to include it in the CI
2017-09-07 12:48:24 -07:00
Yann Collet
00418f7611
bench : made decompression speed evaluation same time as compression
...
minor : slightly modified an example do avoid disabling a gcc warning through #pragma
2017-09-07 12:12:36 -07:00
Yann Collet
ee5332438b
minor Makefile fixes
2017-09-06 17:41:44 -07:00
Yann Collet
1ad9a36cfb
updated lib/README
...
clarifications, improved wording
2017-09-06 11:22:45 -07:00
Yann Collet
3d260f3522
complementary information for #394
2017-08-30 16:09:10 -07:00
Yann Collet
e3c71584ff
clarified documentation of streaming decompression functions
...
(synchronous bufferless mode)
answering questions by @jtbandes (#394 )
2017-08-30 15:42:04 -07:00
Yann Collet
f212a10ae0
fixed FS-independent file order in /lib
...
identified by @bmwiedemann
2017-08-29 15:31:56 -07:00
Yann Collet
c4d6884cd8
build: source files sorted in a FS independent manner
...
to be more compatible with reproducible builds.
patch inspired by @bmwiedemann
2017-08-26 12:22:51 -07:00
Nick Terrell
252ce14fd2
Don't use C++11 deprecation attribute with clang
...
Clang doesn't accept a C++11 attribute following `LZ4LIB_API`.
Use the GNU attribute instead.
2017-08-24 14:06:34 -07:00
tcpan
f423d016cf
FIX: added prefix to FORCE_INLINE to prevent redefinition error during compilation when used with other libraries that define FORCE_INLINE
2017-08-24 10:14:20 -04:00
Yann Collet
c10863b98e
fix : asan error in dctx, due to increased maximum frame header size, reported by Craig Young
2017-08-17 10:55:30 -07:00
Yann Collet
a1f3a27e9b
Merge branch 'dev' into installVars and fixed conflicts
2017-08-15 16:57:00 -07:00
Yann Collet
af9d72b7f6
Merge pull request #383 from lz4/blockChecksum
...
Block checksum
2017-08-15 16:50:04 -07:00
Yann Collet
8593ba8831
Merge pull request #380 from lz4/dictID
...
Frame Dictionary API
2017-08-15 14:12:04 -07:00
Yann Collet
aea7d521ae
better respect GNU standard Makefile conventions
...
supports lowercase directory variables
add an "Installation" section in README.md
added an INSTALL file
2017-08-14 15:13:23 -07:00
Yann Collet
77f99d2922
restored block checksum capability at lz4frame API level
2017-08-11 17:46:52 -07:00
Yann Collet
757497ae3d
implemented lz4frame decompression API
2017-08-10 16:53:57 -07:00
Yann Collet
4531637ecd
support dictionary compression with independent blocks
2017-08-10 12:12:53 -07:00
Yann Collet
8d597d62d5
fixed gcc prototype warning
2017-08-10 10:28:52 -07:00
Yann Collet
d8aafe2c52
dictionary compression correctly uses compression level
...
Not obvious : copying the state was copying cdict's compression level
2017-08-10 00:48:19 -07:00
Yann Collet
ca2fb166ab
fixed C++ conversion warnings
2017-08-09 18:22:26 -07:00
Yann Collet
bf8daa2fd5
fixed uninitialization error in lz4frame
2017-08-09 18:00:48 -07:00
Yann Collet
31f2cdf4d2
implemented dictionary compression in lz4frame
...
note : only compression API is implemented and tested
still to do : decompression API
2017-08-09 16:51:19 -07:00
Yann Collet
a82dadfbae
added dictID inside LZ4F_frameInfo_t
...
Compressor can set dictID on LZ4F_compressBegin()
Decompressor can retrieve it using LZ4F_getFrameInfo()
2017-08-08 17:43:11 -07:00
Alex Deymo
76ef6d0ab0
Allow to predefine FORCE_INLINE macro.
...
FORCE_INLINE macro is defined based on the compiler used. When using
gcc, it will include "__attribute__((always_inline))" forcing gcc to
always inline all the functions marked as FORCE_INLINE. However, this
can cause a performance degradation of about 15%.
This patch allows to set the FORCE_INLINE macro from the compiler
command line to either "static" or "static inline" giving allowing it
to inline functions as needed when performing optimizations.
2017-08-07 10:34:33 +02:00
Ido Rosen
8aeaf6bb3a
Fix typos preventing installation of static lib.
2017-08-01 00:48:58 -04:00
Yann Collet
6ad3a983db
fix #369
...
The bug would make the bt search read one byte in an invalid memory region,
and make a branch decision based on its value.
Impact was small (missed compression opportunity).
It only happens in -BD mode, with extDict-prefix overlapping matches.
The bt match search is supposed to work also in extDict mode.
In which case, the match ptr can point into Dict.
When the match was overlapping Dict<->Prefix,
match[matchLength] would end up outside of Dict, in an invalid memory area.
The correction ensures that in such a case,
match[matchLength] ends up at intended location, inside prefix.
2017-06-26 11:29:05 -07:00
Chocobo1
a4ec7fa7b7
Fix gcc7 Wimplicit-fallthrough warnings
...
For the default Wimplicit-fallthrough=3 level,
the comment should start with "fall*"
2017-06-19 13:57:35 +08:00
Yann Collet
89b9f026c9
made level 10 a bit faster
...
at the expense of a little bit of compression ratio.
Now speed is intermediate on calgary corpus :
25 - 12 - 8 - 3
2017-06-13 17:25:29 -07:00
Yann Collet
bfc1806605
clarified lz4frame api comment ( #350 )
2017-06-13 12:35:00 -07:00
Yann Collet
139a387d17
updated NEWS
2017-06-12 10:54:59 -07:00
Yann Collet
e60cbb5cac
added test for LZ4F_resetDecompressionContext()
2017-05-10 16:28:36 -07:00
Yann Collet
a902127613
bumped version number to 1.8.0
...
due to addition of prototype
LZ4F_resetDecompressionContext()
2017-05-10 13:27:18 -07:00
Yann Collet
b8575f2d2b
updated Makefile
...
to automatically build manual files with
make all
2017-05-10 13:26:04 -07:00
Yann Collet
fe932c4527
expose LZ4F_resetDecompressionContext()
2017-05-10 12:25:05 -07:00
Yann Collet
1efa48831e
minor readability changes
2017-05-02 12:01:13 -07:00
Yann Collet
a8dd86d93e
changed macro HEAPMODE into LZ4_HEAPMODE
...
This macro is susceptible to be triggered from user side
typically through compiler flag (-DLZ4_HEAPMODE=1).
In which case, it makes sense to prefix the macro
since we want to reduce potential side-effect on namespace.
2017-05-01 22:32:21 -07:00
Alexey Tourbin
6cf1f7d758
lz4hc.c: clamp compression levels > 12
...
I noticed that, while 'lz4 -12' works fine, 'lz4 -13' does not compress
at all.
$ cat </etc/passwd |wc -c
2565
$ lz4 -12 </etc/passwd |wc -c
1456
$ lz4 -13 </etc/passwd |wc -c
2584
Perhaps the best way to fix this is to clamp the compression level
in the LZ4HC_compress_generic routine.
2017-04-29 16:33:15 +03:00
Alexey Tourbin
f3460fc148
liz4hc.h: fix a comment: LZ4HC_MAX_CLEVEL -> LZ4HC_CLEVEL_MAX
2017-04-29 16:06:45 +03:00
Nick Terrell
0b3e807043
[LZ4F] Allow users to disable LZ4F_DEPRECATE
2017-04-26 10:03:23 -07:00
Yann Collet
e2c9b19122
lz4frame : Added negative compression levels
2017-04-09 01:41:36 -07:00
Yann Collet
7eecd32c07
ensure lz4f_cctx internal buffer size remain valid in case of malloc error
2017-04-09 01:11:39 -07:00
Yann Collet
e169edac05
lz4frame : control lz4 context creation success
2017-04-08 18:27:31 -07:00
Yann Collet
e2827775ee
make __packed memory access default for gcc
...
It's always as good or better then memcpy()
but depends on gcc-specific extension.
solves https://github.com/facebook/zstd/issues/620
2017-03-30 12:22:17 -07:00
Yann Collet
6226d52eab
fixed minor Visual warning
2017-03-29 14:18:10 -07:00
Yann Collet
b88df6b1b0
Improved comments on LZ4F_getFrameInfo()
...
and added LZ4F_resetCompressionContext()
2017-03-29 12:51:08 -07:00
Yann Collet
f0a7651fce
Safer LZ4_getFrameInfo()
...
LZ4_getFrameInfo() is now guaranteed to keep dctx state clean,
even in case of failure.
2017-03-28 17:10:01 -07:00
Yann Collet
4567d0def5
Merge pull request #340 from lz4/optlz4opt
...
lz4opt
2017-03-24 17:10:45 -07:00
Yann Collet
38362c1d65
Merge pull request #338 from ldv-alt/dev
...
Export deprecated symbols declared in lz4hc.h
2017-03-24 12:03:32 -07:00
Yann Collet
60b6d2907f
improved level 10 speed for degenerated cases
2017-03-24 11:29:35 -07:00
Yann Collet
8f8fc52fcf
Merge branch 'dev' into optlz4opt
2017-03-24 11:00:40 -07:00
Yann Collet
0863931a1c
fixed API comment for LZ4F_createCompressionContext()
...
as reported by @nh2
2017-03-24 10:34:18 -07:00
Dmitry V. Levin
dab3590fce
Export deprecated symbols declared in lz4hc.h
...
Commit 25b2435885
2017-03-24 03:12:48 +00:00
Yann Collet
68044acfec
Merge branch 'optlz4opt' of github.com:Cyan4973/lz4 into optlz4opt
2017-03-20 09:58:00 -07:00
Yann Collet
b8bc70022b
minor refactor
2017-03-20 05:04:12 -07:00
Yann Collet
cea8f60df1
slight btopt speed improvement
...
removing a useless test
2017-03-20 02:33:02 -07:00
Yann Collet
f513020a6d
slight btopt speed improvement
...
removing a useless test
2017-03-17 18:07:53 -07:00
Yann Collet
8bd32a17b1
made SET_PRICE macro more usable
...
previous version would use argument to also change target member.
Now, only values are transferred
2017-03-17 17:42:47 -07:00
Yann Collet
118b47f3d1
improved lz4opt speed (~4%)
2017-03-17 16:53:35 -07:00
Yann Collet
eff6166eb8
minor price function optimization
2017-03-17 15:51:21 -07:00
Yann Collet
0d073d4d28
added extern C for lz4.h static section
...
should make the file more compatible with C++ compiler, such as Visual or g++
2017-03-17 15:11:09 -07:00
Yann Collet
aae447fffd
LZ4_compress_HC_continue_destSize() works as intended up to level 10
...
It's incompatible with btopt though,
so cLevel >= 11 feature much reduced performance (degraded mode)
2017-03-16 15:41:30 -07:00
Yann Collet
cd35f0d98c
LZ4_compress_HC_destSize() uses LZ4HC_compress_generic() code path
...
Limits compression level to 10,
to remain compatible with Hash Chain.
2017-03-16 15:10:38 -07:00
Yann Collet
6b2a1b3606
updated lz4 version number
2017-03-16 02:24:46 -07:00
Yann Collet
430b7d32b3
created LZ4_HC_STATIC_LINKING_ONLY section
...
where are exposed new prototypes *_destSize()
2017-03-16 02:16:24 -07:00
Yann Collet
e945a27f9c
fix #333 : expose obsolete decoding functions
...
with deprecation warning.
notified by Chen Yufei
2017-03-14 21:21:54 -07:00
Yann Collet
b9132bedcd
Merge pull request #331 from ldv-alt/dev
...
Export only those symbols that are part of public API
2017-03-12 03:16:23 -07:00
Dmitry V. Levin
883ebdcee0
Export only those symbols that are part of public API
...
Specify -fvisibility=hidden parameter when linking the shared library
using -fPIC, assuming that gcc >= 4 is used.
This change results to unexporting of the following 42 functions:
LZ4F_getErrorCode
LZ4_XXH32
LZ4_XXH32_canonicalFromHash
LZ4_XXH32_copyState
LZ4_XXH32_createState
LZ4_XXH32_digest
LZ4_XXH32_freeState
LZ4_XXH32_hashFromCanonical
LZ4_XXH32_reset
LZ4_XXH32_update
LZ4_XXH64
LZ4_XXH64_canonicalFromHash
LZ4_XXH64_copyState
LZ4_XXH64_createState
LZ4_XXH64_digest
LZ4_XXH64_freeState
LZ4_XXH64_hashFromCanonical
LZ4_XXH64_reset
LZ4_XXH64_update
LZ4_XXH_versionNumber
LZ4_compressHC
LZ4_compressHC2
LZ4_compressHC2_continue
LZ4_compressHC2_limitedOutput
LZ4_compressHC2_limitedOutput_continue
LZ4_compressHC2_limitedOutput_withStateHC
LZ4_compressHC2_withStateHC
LZ4_compressHC_continue
LZ4_compressHC_limitedOutput
LZ4_compressHC_limitedOutput_continue
LZ4_compressHC_limitedOutput_withStateHC
LZ4_compressHC_withStateHC
LZ4_compress_fast_force
LZ4_compress_forceExtDict
LZ4_createHC
LZ4_decompress_safe_forceExtDict
LZ4_freeHC
LZ4_resetStreamStateHC
LZ4_sizeofStreamStateHC
LZ4_slideInputBufferHC
LZ4_uncompress
LZ4_uncompress_unknownOutputSize
2017-03-10 23:35:30 +00:00
Dmitry V. Levin
25b2435885
Export deprecated symbols
...
Deprecated symbols are still a part of ABI and have to be exported,
so mark them with LZ4LIB_API attribute.
2017-03-10 23:35:30 +00:00
Dmitry V. Levin
7aeecbff71
Explicitly set visibility of public API functions when gcc is used
...
Windows builds already limit exporting of functions to those marked
with LZ4LIB_API tag. The same behaviour could be achieved on other
platforms when a relatively fresh gcc is used.
This change assigns public visibility to all symbols marked with
LZ4LIB_API tag. When the library is built in -fvisibility=hidden
mode, only these marked symbols will be exported.
2017-03-10 23:35:30 +00:00
remittor
36842ebb19
lz4hc: Fix LZ4HC_compress_hashChain for backward compatibility
2017-03-09 12:19:24 +03:00
remittor
baa155088b
lz4hc: Fix LZ4HC_compress_hashChain for full support destSize variant
2017-03-08 18:49:55 +03:00
remittor
f007153e3f
lz4hc: Add LZ4_compressHC_destSize and LZ4_compress_HC_continue_destSize
2017-03-08 11:11:15 +03:00
remittor
45b592b7ec
lz4hc: Cleanup function LZ4HC_encodeSequence
2017-03-08 00:30:54 +03:00
remittor
534f8fa5d6
lz4hc: Cleanup function LZ4HC_compress_hashChain
2017-03-07 17:11:48 +03:00
Eric Siegerman
eb51b2b8d9
Explicitly create $(DESTDIR)$(LIBDIR)/ at install time
...
This is needed on systems where it isn't the parent of
$(PKGCONFIGDIR), and so doesn't get created implicitly.
2017-02-14 22:12:26 -05:00
Yann Collet
04ec092696
updated comments on block sizes
2017-02-08 11:02:32 -08:00
Przemyslaw Skibinski
8e1fd97d16
lz4frame.h: added Introduction
2017-01-23 17:46:32 +01:00
Przemyslaw Skibinski
9071df0fa5
lz4frame.h: prepared to generate manual
2017-01-23 16:22:00 +01:00
Przemyslaw Skibinski
f9f48f8ed9
lz4.h: improved manual generation
2017-01-23 16:02:51 +01:00
Przemyslaw Skibinski
489d1618c9
added "This Makefile is validated for"
2017-01-19 16:28:08 +01:00
Yann Collet
9683a1ae87
LZ4_MEMORY_USAGE can be modified from compilation command line
2017-01-05 16:50:37 +01:00
Przemyslaw Skibinski
312d88249f
removed nextToUpdateBT
2016-12-28 15:38:59 +01:00
Przemyslaw Skibinski
3d5bb38977
clean logging
2016-12-28 15:37:12 +01:00
Przemyslaw Skibinski
1c80b9af4e
LZ4HC_getSearchNum
2016-12-28 15:18:19 +01:00
Przemyslaw Skibinski
98f9d6c726
improved logging
2016-12-28 14:04:38 +01:00
Przemyslaw Skibinski
12aae846b3
fixed table update in LZ4_loadDictHC
2016-12-28 13:19:11 +01:00
Przemyslaw Skibinski
c8b31263cc
added FUZ_CLEVEL_DEFAULT
2016-12-28 13:08:38 +01:00
Przemyslaw Skibinski
d57ff6456d
changed default PREFIX and MANDIR
2016-12-28 11:27:17 +01:00
Przemyslaw Skibinski
20381a2fce
fixed -BD compression
2016-12-27 15:31:35 +01:00
Przemyslaw Skibinski
e6536faf33
lib\Makefile: fixed INSTALL_DATA
2016-12-27 11:17:35 +01:00
Przemyslaw Skibinski
efaa9b7bc7
Merge remote-tracking branch 'refs/remotes/lz4/dev' into dev
...
# Conflicts:
# lib/Makefile
2016-12-27 10:43:07 +01:00
Przemyslaw Skibinski
b22e2bed5e
BSD: improved "make install"
2016-12-23 10:05:41 +01:00
Przemyslaw Skibinski
ea51ad0cee
Solaris: working "make install"
2016-12-23 00:02:01 +01:00
Yann Collet
19c0f21b00
updated Makefile : lz4 no longer recompiled when already up-to-date
2016-12-22 18:02:09 +01:00
Yann Collet
52cac9a973
updated a few macros names
2016-12-22 11:41:05 +01:00
Yann Collet
70526a11e0
fixed lib/clean
2016-12-21 15:33:53 +01:00
Yann Collet
7cf0bb97b2
LZ4F_compressBound(0) provides upper bound for LZ4F_flush() and LZ4F_compressEnd() [ #290 , suggested by @vtermanis]
2016-12-21 14:18:01 +01:00
Yann Collet
385cb4f539
minor update Makefile
2016-12-21 13:18:02 +01:00
Przemyslaw Skibinski
4f050b68d8
tree update dependent from compression level
2016-12-09 18:17:46 +01:00
Przemyslaw Skibinski
838ed341f9
fullUpdate as a parameter
2016-12-09 17:16:35 +01:00
Przemyslaw Skibinski
b3ecc3e3ec
last match starts at least 12 bytes before end of block
2016-12-09 16:09:38 +01:00
Przemyslaw Skibinski
d694bf9111
faster opt compression
2016-12-09 15:20:32 +01:00
Przemyslaw Skibinski
a22e71d4a9
full binary tree update
2016-12-09 12:37:17 +01:00
Przemyslaw Skibinski
fb6c98c856
slightly improved lz4opt.h
2016-12-08 15:50:45 +01:00
Przemyslaw Skibinski
8c2f23c130
fixed LZ4_STREAMHCSIZE
2016-12-07 16:24:35 +01:00
Przemyslaw Skibinski
76228f064a
LZ4HC_DICTIONARY_LOGSIZE 17
2016-12-07 16:19:10 +01:00
Przemyslaw Skibinski
8bfa42e61e
improved ratio
2016-12-07 15:49:45 +01:00
Przemyslaw Skibinski
1289038240
15-bit LZ4HC_HASH_LOG
2016-12-07 14:31:46 +01:00
Przemyslaw Skibinski
410ba53dbc
improved LZ4HC_BinTree_GetAllMatches
2016-12-07 13:07:39 +01:00
Przemyslaw Skibinski
1833be1cf0
fixed gcc warnings
2016-12-07 12:59:05 +01:00
Przemyslaw Skibinski
f2ebf37bfe
slightly improved ratio
2016-12-07 12:49:38 +01:00
Przemyslaw Skibinski
77b051ed7b
improve code formatting
2016-12-07 12:17:24 +01:00
Przemyslaw Skibinski
e3fee94742
LZ4HC_MAX_CLEVEL = 12
2016-12-07 12:16:33 +01:00
Przemyslaw Skibinski
757ef1d5fc
removed LZ4HC_GetAllMatches
2016-12-07 11:44:17 +01:00
Przemyslaw Skibinski
cfe6a24b08
updated LZ4HC_get_price
2016-12-06 19:42:47 +01:00
Przemyslaw Skibinski
2113ead176
17-bit LZ4HC_MAXD
2016-12-06 19:11:53 +01:00
Przemyslaw Skibinski
c1ef7a177f
introduced LZ4HC_compress_hashChain
2016-12-06 15:21:28 +01:00
Przemyslaw Skibinski
3f430daf7a
added lz4opt.h
2016-12-06 15:20:59 +01:00
Przemyslaw Skibinski
5ae0e789fc
Merge remote-tracking branch 'refs/remotes/lz4/dev' into dev
2016-12-06 13:44:42 +01:00
Yann Collet
5eb547a608
fix #283 : implement LZ4_versionString().
2016-12-04 20:05:36 +01:00
Yann Collet
a9a8dbf7c1
fixed minor display error when using -r
2016-11-28 04:01:02 -08:00
Yann Collet
f4c74e6fac
library release build compatible with environment variable
2016-11-22 11:52:43 -08:00
Yann Collet
7819d58787
new test case with fPIE
2016-11-22 11:18:07 -08:00
Przemyslaw Skibinski
65a542579b
updated README.md
2016-11-22 11:14:11 +01:00
Yann Collet
8b233b228d
added a few dates
2016-11-21 15:51:39 -08:00
Yann Collet
742f2b683e
added doc in code comments
2016-11-21 14:13:00 -08:00
Takayuki MATSUOKA
b4db9d7e35
Add C++14 standard [[deprecated]] attribute
...
See also
For __cplusplus predefined macro, https://gcc.gnu.org/onlinedocs/cpp/Standard-Predefined-Macros.html
For [[deprecated]] attribute, https://isocpp.org/wiki/faq/cpp14-language#deprecated-attribute
2016-11-19 22:08:48 +09:00
Yann Collet
19df3029e2
fixed #272 (compilation fails on gcc 4.4), reported by @totaam
2016-11-18 17:56:56 -08:00
Yann Collet
a91983daa0
highly improved speed on -mx32 mode
...
Now -mx32 is fastest mode on x64 CPU
2016-11-18 17:05:06 -08:00
Yann Collet
8e1ea59ad6
attempt to fix sanitize32 package dependency
2016-11-17 18:30:46 -08:00
Yann Collet
1abecbc33c
fix 32-bits mode.
...
Large File support for Mac OS-X in 32-bits mode
Fixed potential undefined behavior
Changed makefile for 32-bits mode
2016-11-17 13:02:06 -08:00
Yann Collet
7fde7438d3
Merge branch 'dev' of github.com:Cyan4973/lz4 into dev
2016-11-16 11:37:05 -08:00
Przemyslaw Skibinski
2dee7bdaf6
include NEWS in lz4_x64.zip and lz4_x86.zip
2016-11-16 11:06:28 +01:00
Przemyslaw Skibinski
632ab3b8d4
updated programs\README.md
2016-11-16 10:53:06 +01:00
Przemyslaw Skibinski
8b48d5e446
updated example\README.md
2016-11-16 09:53:07 +01:00
Przemyslaw Skibinski
11f6217cc2
created dll\example directory
2016-11-16 09:32:26 +01:00
Przemyslaw Skibinski
7b6a9d8638
Merge remote-tracking branch 'refs/remotes/lz4/dev' into dev
2016-11-16 09:01:45 +01:00
Przemyslaw Skibinski
2e10aab20f
MinGW doesn't require the import library at all
2016-11-16 08:59:18 +01:00
Yann Collet
7cecc7b089
fixed a limit case scenario
2016-11-15 17:51:29 -08:00
Yann Collet
d2be69b144
fixed minor coverity warnings
2016-11-15 14:46:57 -08:00
Yann Collet
b44790cf98
Merge pull request #270 from inikep/dev
...
autobuild executables
2016-11-15 11:24:26 -08:00
Przemyslaw Skibinski
e583dd0566
ImageHasSafeExceptionHandlers=false
2016-11-15 16:01:38 +01:00
Przemyslaw Skibinski
eb160e1a2c
appveyor.yml: added liblz4_x86.zip
2016-11-15 14:09:36 +01:00
Przemyslaw Skibinski
45b8623afa
updated lib\dll\README.md
2016-11-15 13:49:20 +01:00
Przemyslaw Skibinski
5625cc21ea
appveyor.yml: generate DLL package
2016-11-15 13:29:33 +01:00
Przemyslaw Skibinski
c093e256d4
added files used by DLL package
2016-11-15 12:57:56 +01:00
Przemyslaw Skibinski
be471c69da
added fullbench-dll.sln that works with gcc/MinGW
2016-11-15 12:57:03 +01:00
Przemyslaw Skibinski
f71340ce1d
DLL dependencies moved to lib/dll/
2016-11-15 11:06:16 +01:00
Yann Collet
923cf4447f
bump version number
2016-11-14 18:09:31 -08:00
Yann Collet
4c5c711b7a
fixed minor conversion warning
2016-11-14 14:53:15 -08:00
Yann Collet
f094f53144
silence a minor msan warning
2016-11-14 14:38:46 -08:00
Yann Collet
0fe5c187a5
fixed minor msan warning
2016-11-14 11:34:10 -08:00
Yann Collet
fa158b4118
fixed nameless union warnings
2016-11-14 10:02:01 -08:00
Yann Collet
84af32d491
Merge branch 'dev' of github.com:Cyan4973/lz4 into dev
2016-11-14 08:52:23 -08:00
Yann Collet
5a5ebeec15
clang and g++ tests restricted to native only on Travis CI Ubuntu v12 environment
2016-11-14 08:51:28 -08:00
Yann Collet
569897dddd
Merge pull request #269 from inikep/dev
...
Dev
2016-11-14 08:27:06 -08:00
Yann Collet
1b24cc1155
fixed conversion warnings
2016-11-14 07:10:31 -08:00
Przemyslaw Skibinski
9ad7508db0
Merge remote-tracking branch 'refs/remotes/lz4/dev' into dev
2016-11-14 11:29:11 +01:00
Yann Collet
84b97f90b8
fuzzer code refactoring
...
fix g++ conversion warning
2016-11-12 17:14:57 -08:00
Yann Collet
94542d8458
made lz4hc explicitly dependent on lz4
2016-11-12 15:50:29 -08:00
Yann Collet
bb97e8a6fd
fixed __GNUC__ macro
2016-11-12 13:30:02 -08:00
Yann Collet
3580d96980
enabled deprecation warnings on remaining obsolete functions
2016-11-12 08:48:42 -08:00
Yann Collet
874f3e095b
update code comments
2016-11-12 07:29:54 -08:00
Yann Collet
e528a82f01
Merge pull request #267 from terrelln/strict-aliasing
...
Expose internal types to remove strict aliasing
2016-11-11 16:54:51 -08:00
Yann Collet
3d456bdf2a
fixed conversion warnings
2016-11-11 15:40:58 -08:00
Yann Collet
bf6dda69e6
updated frametest
2016-11-11 15:11:56 -08:00
Nick Terrell
85aeb0e4bb
Expose internal types to remove strict aliasing
2016-11-11 13:00:02 -08:00
Przemyslaw Skibinski
ec6fb477b2
added visual\README.md
2016-11-11 08:57:46 +01:00
Yann Collet
4f9db1383a
updated xxhash lib
2016-11-10 18:34:49 -08:00
Nick Terrell
5b37837e6e
Fix license and remove references to zstd
2016-11-10 17:27:56 -08:00
Yann Collet
1f246a9899
Fixed #178 fullbench on small input
2016-11-10 15:31:59 -08:00
Przemyslaw Skibinski
52251d9709
Using MinGW+MSYS to create DLL
2016-11-10 18:30:59 +01:00
Przemyslaw Skibinski
72a4a84df7
udated README.md
2016-11-10 17:49:42 +01:00
Przemyslaw Skibinski
2ecce6f151
lz4.h: added Introduction section
2016-11-10 17:22:59 +01:00
Przemyslaw Skibinski
063b4d92e1
fixed make install
2016-11-09 16:23:08 +01:00
Przemyslaw Skibinski
773ae50b47
DLL exports only functions defined in liblz4.def
2016-11-09 16:07:28 +01:00
Przemyslaw Skibinski
ca80a7c8f7
create DLL with MinGW/MSYS
2016-11-09 15:19:29 +01:00
Przemyslaw Skibinski
67fd5dffd9
updated appveyor.yml
2016-11-09 14:05:44 +01:00
Przemyslaw Skibinski
7df658ec1b
removed LZ4_DLL_EXPORT=1 (2)
2016-11-09 12:52:27 +01:00
Przemyslaw Skibinski
fe5148417f
introduced LZ4_COMPILED_AS_DLL
2016-11-09 11:45:55 +01:00
Przemyslaw Skibinski
0a22bf7d6e
err0r(LZ4F_errorCodes code) uses ptrdiff_t
2016-11-08 11:47:03 +01:00
Przemyslaw Skibinski
d06ab4f415
test powerpc64
2016-11-08 11:16:16 +01:00
Yann Collet
c7ab95faa5
slightly improved HC compression ratio
2016-11-07 19:32:24 -08:00
Yann Collet
e9089bcbe4
small compression ratio and speed improvement on small files
2016-11-07 17:31:38 -08:00
Yann Collet
f6a7c6b578
Merge branch 'dev' of github.com:Cyan4973/lz4 into dev
2016-11-07 10:31:43 -08:00
Przemyslaw Skibinski
d61bb74f20
updated declaration of LZ4F_freeDecompressionContext
2016-11-07 14:14:42 +01:00
Przemyslaw Skibinski
58ead8dd27
fixed appveyor.yml
2016-11-07 13:00:08 +01:00
Nick Terrell
920bf21714
Fix LZ4_decompress_fast_continue() bug
...
It specified the external dictionary location incorrectly.
Add tests that expose this bug with both normal compilation and ASAN.
2016-11-04 20:01:23 -07:00
Yann Collet
207f478bab
minor refactor
2016-11-04 19:04:32 -07:00
Yann Collet
96565816bd
restricted deprecation warning to fairly recent gcc versions (>=6.0)
2016-11-04 17:11:06 -07:00
Yann Collet
eaad740ac7
lz4frame obsolete enum should trigger deprecation warnings (on supported compilers)
2016-11-04 16:58:34 -07:00
Yann Collet
079d5dd54b
removed support for old error code enums from lz4frame_static.h, to free up namespace.
...
note : lz4frame_static.h does not guaranteed API stability.
note 2 : the macro to enable old error code enums is still present. Just needs to comment one line to re-enable them.
2016-11-04 16:29:43 -07:00
Nick Terrell
f30c56c083
Quiet gcc-4.6.3 narrowing warning
2016-11-04 12:34:28 -07:00
Yann Collet
f878c08b76
better correctness on big-endian 64-bits platforms
2016-11-04 07:24:21 -07:00
Yann Collet
26dec498cf
small compression speed improvement on 64-bits systems
2016-11-04 07:18:03 -07:00
Yann Collet
4c6610709e
minor code refactoring
2016-11-03 20:32:51 -07:00
Yann Collet
eda8c4eb1c
fix #198 : no longer requires to restart streaming decompression from where it stopped.
...
It permits relocating remaining data into another memory space.
Still, the same content must be presented.
2016-11-03 18:46:07 -07:00
Yann Collet
4791cda04a
fixed strict warnings
2016-11-03 17:31:41 -07:00
Yann Collet
258a5e7fa4
updated comments
2016-11-03 17:14:25 -07:00
Przemyslaw Skibinski
84cedb4632
updated links to LZ4 repository
2016-11-03 15:12:57 +01:00
Przemyslaw Skibinski
88cef262ec
documentation moved to doc/
2016-11-03 13:25:20 +01:00
Yann Collet
67500142c1
Clarified license ( #115 , #244 )
2016-11-01 19:14:04 -07:00
Yann Collet
7e112cfa5c
fixes static compilation under Windows ( #246 )
2016-10-21 09:49:30 -07:00
Yann Collet
52cdb4a5f4
Merge pull request #241 from vapier/dev
...
add a flag to disable static libs
2016-09-23 15:59:39 +02:00
Mike Frysinger
43b631223b
add a flag to disable static libs
2016-09-22 23:59:02 -04:00
