AuroraMiddleware/lz4
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568 Commits

Author SHA1 Message Date
Yann Collet
d51f046628 2-stages LZ4_count 
separate first branch from the rest of the compare loop
to get dedicated prediction.

measured a 3-4% compression speed improvement.
 2017-11-06 15:42:50 -08:00
Sylvestre Ledru
4fed595dac Only ignore with C++17 2017-11-06 16:16:02 +01:00
Sylvestre Ledru
cca7618f09 When building with a C++ compiler, remove the 'register' keyword to silent a warning 
For example, with clang:

lz4.c:XXX:36: error: 'register' storage class specifier is deprecated and incompatible with C++17 [-Werror,-Wdeprecated-register]
static unsigned LZ4_NbCommonBytes (register reg_t val)
                                   ^~~~~~~~~
 2017-11-05 11:48:03 +01:00
Yann Collet
aa99163752 fixed minor static analyzer warning 
dead assignment
 2017-11-03 12:33:55 -07:00
Yann Collet
89821ac7a1 minor comment edit 2017-11-03 11:49:56 -07:00
Yann Collet
1025546347 unified HC levels 
LZ4_setCompressionLevel() can be users accross the whole range of HC levels
No more transition issue between Optimal and HC modes
 2017-11-03 11:28:28 -07:00
Yann Collet
a1f4a0d983 moved ctx->end handling from parsers 
responsibility better handled one layer above (LZ4HC_compress_generic())
 2017-11-03 10:48:55 -07:00
Yann Collet
c9bbad53ff removed ctx->searchNum 
nbSearches now transmitted directly as function parameter
easier to track and debug
 2017-11-03 10:30:52 -07:00
Yann Collet
e2eca62046 LZ4_compress_HC_continue_destSize() now compatible with optimal parser 
levels 11+
 2017-11-03 02:03:19 -07:00
Yann Collet
3b222d2d96 removes matches[] table 
saves stack space
clearer match finder interface (no more table to fill)
 2017-11-03 01:37:43 -07:00
Yann Collet
320e1d51ac removed useless parameter from hash chain matchfinder 
used to be present for compatibility with binary tree matchfinder
 2017-11-03 01:20:30 -07:00
Yann Collet
81667a1e96 removed code and reference to binary tree match finder 
reduced size of LZ4HC state
 2017-11-03 01:18:12 -07:00
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 exported deprecated
symbols declared in lz4.h by marking all LZ4_DEPRECATED functions with
LZ4LIB_API attribute.  This change does the same with functions declared
in lz4hc.h file, thus extending the export to lz4hc.h.

As result, the following 17 deprecated functions are exported again:

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_createHC
LZ4_freeHC
LZ4_resetStreamStateHC
LZ4_sizeofStreamStateHC
LZ4_slideInputBufferHC
 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