Commit Graph

16 Commits

Author SHA1 Message Date
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
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
Eugene Klyuchnikov
771eb10798 Update license statement in source files. 2015-11-27 11:27:11 +01:00
Zoltan Szabadka
ea48ce5a6f Fix --Wconversion and --pedantic-erros for the encoder. 2015-10-28 17:44:47 +01:00
Zoltan Szabadka
b6689b1504 Remove unnecessary branch from literal cost calculation. 2015-10-05 11:42:45 +02:00
Zoltan Szabadka
4c37566f4b Move literal cost computation to where it's used.
Move utf8 heuristics functions to their own file.
2015-10-01 15:10:42 +02:00
Zoltan Szabadka
4a7024dcde Make the brotli encoder C++98 compatible. 2015-10-01 12:08:14 +02:00
Zoltan Szabadka
28135ea9e8 Fix another use of log2() in literal_cost.cc 2015-02-27 16:53:00 +01:00
Zoltan Szabadka
fab601e81f Fix encoder compilation error on MSVS 2010.
As reported by @anthrotype, log2() is missing from MSVS 2010.
This patch uses log() and a multiplication in FastLog2()
for _MSV_VER <= 1600 and uses FastLog2() in literal_cost.cc
instead of log2().
2015-02-27 16:04:43 +01:00
Zoltan Szabadka
347781947a Update the dictionary and the transforms. 2014-03-25 16:48:25 +01:00
Zoltan Szabadka
e7650080a8 Updates to Brotli compression format, decoder and encoder
This commit contains a batch of changes that were made to the Brotli
compression algorithm in the last month. Most important changes:

   * Format change: don't push distances representing static dictionary words to the distance cache.
   * Fix decoder invalid memory access bug caused by building a non-complete Huffman tree.
   * Add a mode parameter to the encoder interface.
   * Use different hashers for text and font mode.
   * Add a heuristics to the hasher for skipping non-compressible data.
   * Exhaustive search of static dictionary during backward reference search.
2014-03-20 14:32:35 +01:00
Zoltan Szabadka
0454ab4ec0 Updates to Brotli compression format, decoder and encoder
This commit contains a batch of changes that were made to the Brotli
compression algorithm in the last month. Most important changes:

   * Fixes to the spec.
   * Change of code length code order.
   * Use a 2-level Huffman lookup table in the decoder.
   * Faster uncompressed meta-block decoding.
   * Optimized encoding of the Huffman code.
   * Detection of UTF-8 input encoding.
   * UTF-8 based literal cost modeling for improved
     backward reference selection.
2014-02-14 15:04:23 +01:00
Zoltan Szabadka
2bcd58bb5a Brotli format change: small improvement to the encoding of Huffman codes
Combine the HSKIP and the simple/complex Huffman code type bits.
2014-01-08 12:28:28 +01:00
Zoltan Szabadka
c6b9c7c5c8 Updates to Brotli compression format, decoder and encoder
This commit contains a batch of changes that were made to the Brotli
compression algorithm in the last three weeks. Most important changes:

  * Added UTF8 context model for good text compression.
  * Simplified context modeling by having only 4 context modes.
  * Per-block context mode selection.
  * Faster backward copying and bit reading functions.
  * More efficient histogram coding.
  * Streaming support for the decoder and encoder.
2013-11-15 19:02:17 +01:00
Zoltan Szabadka
c66e4e3e4f Add brotli compressor
This commit is for the encoder for brotli compression format.
Brotli is a generic byte-level compression algorithm.
2013-10-23 13:06:13 +02:00