AuroraMiddleware/lz4
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
108 Commits 13 Branches 31 Tags 6.8 MiB
7a863abfc2
Commit Graph

108 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
yann.collet.73@gmail.com
89767cc280 Small speed improvement (compression & decompression), Thanks Maciej Adamczyk for suggestion 
Fixed : LZ4_uncompress_unknownOutputSize(), now protected against a malicious attack type, where a crafted input deliberately attempts to make it read outside of input buffer. Thanks Steinar H. Gunderson for report.

git-svn-id: https://lz4.googlecode.com/svn/trunk@58 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-03-01 15:19:08 +00:00
yann.collet.73@gmail.com
3430ee1bc0 Added : format description file 
Added : new tuning parameter : LZ4_COMPRESSMIN. Thanks to Maciej Adamczyk for suggestion.
changed : macro for bswap16, in order to help GCC intrinsic detection. Thank to Erik Andersen for suggestion.

git-svn-id: https://lz4.googlecode.com/svn/trunk@57 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-02-25 19:13:16 +00:00
yann.collet.73@gmail.com
ecbce64ac9 Corrected : default to Software Bit Count for GCC earlier than 3.4. Thanks to Gray. 
Corrected : ARM compilation under Visual Studio : now generates cautious code, like GCC, to ensure compatibility with strict-align CPUs. Thanks to Joe WoodBury.
Minor : bench.c : Hash verification changed to MurmurHash3A
Minor : bench.c : selectable block size

git-svn-id: https://lz4.googlecode.com/svn/trunk@56 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-02-20 20:53:49 +00:00
yann.collet.73@gmail.com
4045a42bb1 Added : LZ4_compressBound() function 
corrected : bench.c now correctly detects file size on a wider ranger of compilers; thanks to Erik Andersen
minor : removed warnings on undefined (-Wundef on gcc), thanks David Sterba for suggestion


git-svn-id: https://lz4.googlecode.com/svn/trunk@55 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-02-16 18:39:50 +00:00
yann.collet.73@gmail.com
7b6ba0421d Minor comments refactoring, for better clarity 
git-svn-id: https://lz4.googlecode.com/svn/trunk@54 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-02-06 21:21:48 +00:00
yann.collet.73@gmail.com
9485884eb9 minor interface modification : source pointers are now (const char*) 
git-svn-id: https://lz4.googlecode.com/svn/trunk@53 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-02-01 20:16:10 +00:00
yann.collet.73@gmail.com
2327aa404e Better detection of Big-Endian and PowerPC CPU 
LZ4Demo : correction : produces compatible streams on both big-endian and little-endian systems

git-svn-id: https://lz4.googlecode.com/svn/trunk@52 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-02-01 04:19:38 +00:00
yann.collet.73@gmail.com
572cab747f Corrected a bug in the decoder in 64-bit mode 
git-svn-id: https://lz4.googlecode.com/svn/trunk@51 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-16 22:26:03 +00:00
yann.collet.73@gmail.com
93577f8ce6 Improved compression speed for 64-bit CPUs 
git-svn-id: https://lz4.googlecode.com/svn/trunk@50 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-14 17:17:12 +00:00
yann.collet.73@gmail.com
868c459f23 Improved compression speed for 64-bit CPU 
git-svn-id: https://lz4.googlecode.com/svn/trunk@49 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-13 19:44:18 +00:00
yann.collet.73@gmail.com
99b3294fc2 Improved compression speed for big-endian CPU 
git-svn-id: https://lz4.googlecode.com/svn/trunk@48 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-10 20:03:01 +00:00
yann.collet.73@gmail.com
4fa4221c6e Decompression speed improved in 64-bit mode 
Decoding functions are now also immune to out-of-buffer read errors (note : they were already protected against malicious out-of-buffer write attacks)

git-svn-id: https://lz4.googlecode.com/svn/trunk@47 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-09 23:21:05 +00:00
yann.collet.73@gmail.com
97abf01348 Added : benchmark function within command-line utility 
git-svn-id: https://lz4.googlecode.com/svn/trunk@46 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-08 02:45:32 +00:00
yann.collet.73@gmail.com
aac2572351 Improved compression and decompression speed on 64-bits CPU 
git-svn-id: https://lz4.googlecode.com/svn/trunk@45 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-07 20:26:15 +00:00
yann.collet.73@gmail.com
f20be40d3e Improved compression speed. Thanks to David Sterba for suggestion. 
Compression ratio improvements in "small packet" mode (<64KB).

git-svn-id: https://lz4.googlecode.com/svn/trunk@44 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2012-01-04 13:08:10 +00:00
yann.collet.73@gmail.com
8ee579983a Endianess correction 
git-svn-id: https://lz4.googlecode.com/svn/trunk@43 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-12-16 23:41:46 +00:00
yann.collet.73@gmail.com
39630716d7 Endianess correction 
git-svn-id: https://lz4.googlecode.com/svn/trunk@42 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-12-09 13:59:59 +00:00
yann.collet.73@gmail.com
bf12ca9a1e Slightly improved compression speed 
git-svn-id: https://lz4.googlecode.com/svn/trunk@41 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-11-21 23:56:21 +00:00
yann.collet.73@gmail.com
70ba2c463f Better compliance with C99 and non-C99 compilators 
git-svn-id: https://lz4.googlecode.com/svn/trunk@40 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-11-19 21:38:27 +00:00
yann.collet.73@gmail.com
62c39e2445 Modified makefile to specify C99 support to compiler (GCC) 
Slightly improved compression speed in small packet mode

git-svn-id: https://lz4.googlecode.com/svn/trunk@39 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-11-17 23:07:28 +00:00
yann.collet.73@gmail.com
439f270a4e Slightly improved decoding speed under GCC compilation 
git-svn-id: https://lz4.googlecode.com/svn/trunk@38 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-11-15 22:06:33 +00:00
yann.collet.73@gmail.com
667f8ea1c8 Corrected a bug in LZ4_uncompress_unknownOutputSize(), which reported incorrect decodedSize when maxOutputSize=decodedSize. Thanks to Clayton Stangeland for report and solution. 
git-svn-id: https://lz4.googlecode.com/svn/trunk@37 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-10-26 20:15:33 +00:00
yann.collet.73@gmail.com
5f0ef5bb63 code refactoring 
git-svn-id: https://lz4.googlecode.com/svn/trunk@36 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-10-06 11:24:04 +00:00
yann.collet.73@gmail.com
da9037238c - Improved compression ratio 
- Added special mode for small packet (<=64KB) which improves both compression and speed : LZ4_compress64kCtx()

git-svn-id: https://lz4.googlecode.com/svn/trunk@35 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-29 20:28:37 +00:00
yann.collet.73@gmail.com
ab75a32104 LZ4Demo : corrected a bug in 64 bits mode 
git-svn-id: https://lz4.googlecode.com/svn/trunk@34 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-27 20:47:20 +00:00
yann.collet.73@gmail.com
ea53527d10 New : ARM Validated code, thanks to Vlad Grachov. 
LZ4Demo : compress/decompress output time

git-svn-id: https://lz4.googlecode.com/svn/trunk@33 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-27 11:59:58 +00:00
yann.collet.73@gmail.com
7a40bd983f Modified a few comments 
git-svn-id: https://lz4.googlecode.com/svn/trunk@32 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-26 21:15:24 +00:00
yann.collet.73@gmail.com
d899a39185 updated LZ4_uncompress_unknownOutputSize() 
git-svn-id: https://lz4.googlecode.com/svn/trunk@31 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-26 21:04:03 +00:00
yann.collet.73@gmail.com
c5493d8721 renamed : main.c into lz4demo.c 
changed Makefile accordingly

git-svn-id: https://lz4.googlecode.com/svn/trunk@30 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-25 22:47:31 +00:00
yann.collet.73@gmail.com
420248cff4 CLI : added test mode 
CLI : corrected writing to NULL within Linux
Minor : several comments were updated

git-svn-id: https://lz4.googlecode.com/svn/trunk@29 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-25 21:34:35 +00:00
yann.collet.73@gmail.com
dab6b9d3dc CLI : Added : capability to compress/decompress to NULL (useful for testings) 
Corrected small bug into LZ4_uncompress(). Update is recommended.

git-svn-id: https://lz4.googlecode.com/svn/trunk@28 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-25 20:11:05 +00:00
yann.collet.73@gmail.com
e1ae3a0b95 Small compression speed improvement 
Decoding speed improvement

git-svn-id: https://lz4.googlecode.com/svn/trunk@27 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-23 22:27:08 +00:00
yann.collet.73@gmail.com
3071281340 Corrected issue 3 in compression function. Update is recommended. 
git-svn-id: https://lz4.googlecode.com/svn/trunk@26 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-22 13:11:17 +00:00
yann.collet.73@gmail.com
90bd4616ca minor code refactoring 
removed harmless warning under gcc for linux

git-svn-id: https://lz4.googlecode.com/svn/trunk@25 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-21 11:45:00 +00:00
yann.collet.73@gmail.com
d9bf974023 Small compression speed improvement 
git-svn-id: https://lz4.googlecode.com/svn/trunk@24 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-20 10:01:23 +00:00
yann.collet.73@gmail.com
babbc0f494 removed an harmless warning under gcc for linux 
git-svn-id: https://lz4.googlecode.com/svn/trunk@23 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-18 10:50:12 +00:00
yann.collet.73@gmail.com
e8d1e99112 small compression speed improvement 
git-svn-id: https://lz4.googlecode.com/svn/trunk@22 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-15 21:37:09 +00:00
yann.collet.73@gmail.com
e154e125fc CLI : corrected : small allocation error in case of not compressible input 
git-svn-id: https://lz4.googlecode.com/svn/trunk@21 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-15 20:20:39 +00:00
yann.collet.73@gmail.com
d5a574c351 Corrected : a bug in compression function which could make it read beyond input buffer in some circumstances (issue 2). 
Many thanks for the detailed bug report.


git-svn-id: https://lz4.googlecode.com/svn/trunk@20 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-15 19:14:57 +00:00
yann.collet.73@gmail.com
15d69c39eb small compression speed improvement 
git-svn-id: https://lz4.googlecode.com/svn/trunk@19 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-13 22:55:49 +00:00
yann.collet.73@gmail.com
86a59c7a82 small compression speed improvement 
git-svn-id: https://lz4.googlecode.com/svn/trunk@18 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-13 18:19:42 +00:00
yann.collet.73@gmail.com
7c6229fb3d Updated : license text (main.c) 
git-svn-id: https://lz4.googlecode.com/svn/trunk@17 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-13 13:30:45 +00:00
yann.collet.73@gmail.com
32f4bab6fc Small compression speed improvement 
git-svn-id: https://lz4.googlecode.com/svn/trunk@16 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-13 12:01:11 +00:00
yann.collet.73@gmail.com
84bfd32c9c Corrected : CLI : Pipe mode in Windows (note : was already properly working for Linux) 
git-svn-id: https://lz4.googlecode.com/svn/trunk@15 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-03 16:06:26 +00:00
yann.collet.73@gmail.com
558c03a1af Corrected a (rare) bug in compression function 
git-svn-id: https://lz4.googlecode.com/svn/trunk@14 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-09-03 12:43:13 +00:00
yann.collet.73@gmail.com
3a6d9640fb LZ4Demo now supports Pipe mode (inspired by Huan Truong mod) 
git-svn-id: https://lz4.googlecode.com/svn/trunk@13 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-08-30 22:35:09 +00:00
yann.collet.73@gmail.com
8860e61b4f Removed LZ4_decode() function code. 
If you need to provide "isize" instead of "osize" to the decoder, please use LZ4_uncompress_unknownOutputSize(), which is safer.

git-svn-id: https://lz4.googlecode.com/svn/trunk@12 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-08-21 11:42:08 +00:00
yann.collet.73@gmail.com
a201020317 Improved compression and decompression speed under GCC compiler 
git-svn-id: https://lz4.googlecode.com/svn/trunk@11 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-06-07 17:57:25 +00:00
yann.collet.73@gmail.com
075bf1349b Greatly improved compression and decompression speed, at the expense of some compression ratio. 
Most of the change is due to a modification in the performance parameter (HASH_LOG) now set to 12, to match Intel L1 cache processors.
You can change it back to 17 to get back previous compression ratio.
AMD users are invited to try HASH_LOG = 13, since AMD L1 cache is twice larger.

git-svn-id: https://lz4.googlecode.com/svn/trunk@10 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-06-05 21:23:42 +00:00
yann.collet.73@gmail.com
6b798d5e40 New function : LZ4_uncompress : secure version which is safe against buffer overflow attacks 
New function : LZ4_uncompress_unknownOutputSize : secure but slower version which also guess the size of data to be decoded
The demo file compression program (main.c) is updated to use these new functions
LZ4_decode is still supported but in deprecated status, due to its vulnerability to malicious buffer overflow scenario


git-svn-id: https://lz4.googlecode.com/svn/trunk@9 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
 2011-06-04 17:15:43 +00:00