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137 Commits

Author SHA1 Message Date
Eugene Kliuchnikov
e0af054d9e Fix ubsan warning. 2016-07-27 11:02:27 +02:00
Eugene Kliuchnikov
058cd1ac7a cleanup 2016-07-26 14:51:51 +02:00
Eugene Kliuchnikov
2048189048 Update encoder: 
* booleanification
 * integer BR scores, may improve performance if FPU is slow
 * condense speed-quality constants in quality.h
 * code massage to calm down CoverityScan
 * hashers refactoring
 * new hasher - improved speed, compression and reduced memory usage for q:5-9 w:10-16
 * reduced static recources -> binary size
 2016-07-26 14:41:59 +02:00
Evgenii Kliuchnikov
52ff81717b Update build systems 2016-06-24 15:32:51 +02:00
Eugene Kliuchnikov
6a078b17d7 Update encoder 
* reorganize premake artifacts
* remove deprecated methods/struct
 2016-06-20 17:20:17 +02:00
Eugene Kliuchnikov
378485b097 Update build system. Now libraries are produced as build artifacts. 
There are currently 3 ways to build:
* Easy: `./configure; make`
* Simple: use Bazel
* Portable: use premake5 to generate XCode / MSVS projects
 2016-06-16 10:52:57 +02:00
Piotr Sikora
629d01cc7e Restore C++ constants in "brotli" namespace. 
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
 2016-06-15 14:25:46 -07:00
eustas
e96b7db0c2 Fix: declare variables before code 2016-06-14 13:54:11 +02:00
Eugene Kliuchnikov
be1a53a61b Fix VS compilation warnings; cleanup API. 2016-06-14 13:42:47 +02:00
eustas
48da49b097 Fix declaration / instruction mixture 2016-06-13 16:46:25 +02:00
eustas
40101bb9bf Fix implicit 32->64 bit conversion 2016-06-13 16:44:52 +02:00
eustas
85712c66d4 Fix implicit 32->64 bit conversion 2016-06-13 16:30:17 +02:00
eustas
a08c36bd86 Fix implicit 32->64 bit conversion 2016-06-13 16:28:19 +02:00
eustas
bc7f0f831d Fix double constant literal 2016-06-13 15:54:57 +02:00
eustas
8d14bed24a Backport MSVC log2 fix 2016-06-13 15:50:15 +02:00
eustas
18dc8eabe1 Fix kInfinity definition 
INFINITY is legal only in C++11
 2016-06-13 15:40:45 +02:00
Eugene Kliuchnikov
b972c67780 Convert encoder to plain C. 2016-06-13 11:01:04 +02:00
Eugene Kliuchnikov
582ecab380 Step 3: change file extension C++ -> C 
This will break the build.
 2016-06-03 16:29:37 +02:00
Eugene Kliuchnikov
352b0b2836 Transform most of C++ comments to C-style. 2016-06-03 11:19:23 +02:00
Eugene Kliuchnikov
028291865d Extract common parts: constants, dictionary, etc. 2016-06-03 10:51:04 +02:00
Sebastien Marchand
a33fc249ab Fix 2016-06-01 10:29:15 -04:00
Sebastien Marchand
7fd82d4605 Fix an unitialized variable warning in encode.cc 2016-05-28 12:12:20 -04:00
eustas
f40caec7d1 Fix C -> C++ 2016-05-18 11:13:01 +02:00
eustas
8c5ab0f342 Make encoder API more safe 
Track and use "last_block_emitted" state flag
 2016-05-18 11:04:50 +02:00
eustas
226d21c403 Make encoder API more safe 
Add flag to check if "last" block has been already processed
 2016-05-18 11:01:16 +02:00
Frank Aurich
d9a268c60c Fix compilation with VS2012 2016-04-22 10:55:31 +02:00
Eugene Kliuchnikov
e7e3849835 Update decoder. Add encoder interface wrapper. 
* condense printf in port.h; use BROTLI_LOG everywhere
 * mark non-exported functions with BROTLI_INTERNAL
 * use BROTLI_DUMP instead of (void)(BROTLI_FAILURE())
 * fix problems with CustomDictionary
 * make decode.h independent of state.h
 * fix "double-new-lines"
 * fix some strict compilation warnings
 * fix bro.cc compilation for MSVS
 * added compressor.h as a replacement for encode.h + streams.h
 2016-04-19 16:29:10 +02:00
Piotr Sikora
501cb86172 Fix build with -Wmissing-declarations. 
While there, add -Wmissing-prototypes and -Wmissing-declarations
to shared.mk in order to catch similar errors in the future.

Signed-off-by: Piotr Sikora <piotrsikora@google.com>
 2016-03-18 19:18:59 -07:00
Zoltan Szabadka
846575ff6c Fix TODO formatting. 2016-03-15 11:13:07 +01:00
Zoltan Szabadka
b820c39bd9 Reduce memory usage of brotli encoder at quality 10 and 11. 2016-03-15 10:50:16 +01:00
Eugene Kliuchnikov
25e3796f83 Fix most of ()->(void) and some missing includes. 2016-02-29 14:41:24 +01:00
Zoltan Szabadka
dbb53e6434 Use a hash-to-binary-tree data structure for quality 11 as suggested by Issue #180. 2016-01-27 09:50:39 +01:00
Zoltan Szabadka
14d6ae74a9 Reorder members of the Command struct plus fix some warnings. 
This may save 8 bytes of padding per Command (32 -> 24 bytes).
 2016-01-26 11:25:53 +01:00
Zoltan Szabadka
82c9e1972d Relax the prerequisites of WriteBrotliData(). 
Instead of returning false, if it is called with no
new input for a non-last block, just check if it has
any already processed data to flush, and if not,
return true with empty output.
 2016-01-12 14:45:35 +01:00
Zoltan Szabadka
b4c223cf27 Add missing headers. 2016-01-11 12:17:44 +01:00
Zoltan Szabadka
417107b3dd Add two more fast modes to the brotli compressor. 
The new modes process the input data in independent blocks,
using backward references only from within an input block.

The new modes can be used by specifying quality 0 or quality 1,
the old quality 1 and quality 2 modes are renamed quality 2 and
quality 3, respectively, and the old quality 3 mode is removed.
 2016-01-11 11:21:42 +01:00
Zoltan Szabadka
1bf1b0a598 Faster entropy coding phase for quality 1. 
In quality 1, use static Huffman codes for distance
and command histograms with <= 128 symbols and dynamic
Huffman codes with static code length codes for the other
histograms.
 2016-01-08 10:10:22 +01:00
Zoltan Szabadka
4dd9114c97 Partial Hasher initialization for small input data. 
This increases compression speed of very small files (< 1KB) for quality <= 3.
 2016-01-07 17:10:34 +01:00
Zoltan Szabadka
8844b7f0d7 Fix more conversion warnings. 2016-01-07 16:27:49 +01:00
Eugene Klyuchnikov
24ffa78414 Fix headers 2015-12-11 11:11:51 +01:00
eustas
bc5da25a43 Merge pull request #272 from eustas/master 
Upgrade license to MIT.
 2015-12-09 16:25:06 +01:00
Eugene Klyuchnikov
901cd82f4f Fix WriteMetadata (unaligned and out-of-bounds write). 2015-12-04 16:09:40 +01:00
Eugene Klyuchnikov
771eb10798 Update license statement in source files. 2015-11-27 11:27:11 +01:00
Eugene Klyuchnikov
bb26d1919f Fix sign-comparison warnings 
+ add more debug runtime checks
+ minor cleanup
 2015-11-23 11:05:12 +01:00
Eugene Klyuchnikov
152e33c3a0 Add more explicit type conversions. 
Remove dead code.
Fix includes.
 2015-11-17 13:45:41 +01:00
Zoltan Szabadka
8d061836ac Fix assertion in 32-bit build. 2015-11-12 20:13:58 +01:00
Zoltan Szabadka
ea48ce5a6f Fix --Wconversion and --pedantic-erros for the encoder. 2015-10-28 17:44:47 +01:00
Zoltan Szabadka
a89b57b90c Use uint32_t positions in the hasher and compute distances modulo 2^32. 2015-10-26 17:08:57 +01:00
Zoltan Szabadka
d2e857d83e Fix integer overflow and slowness in entropy estimation. 2015-10-23 11:19:04 +02:00
Mayhem
2a1a1f7282 Remove useless BrotliCompressor instantiation in BrotliCompressBuffer 2015-10-21 19:54:35 +02:00