Add HAVE_LOG2 build macro (#783)

* Add HAVE_LOG2 build macro

Fixes #781

* Rename macro to BROTLI_HAVE_LOG2 and move comment for visibility
2 files changed
tree: a2b3fef9523640ce85930e90ec8eef51e244cd86
  1. .github/
  2. c/
  3. csharp/
  4. docs/
  5. fetch-spec/
  6. go/
  7. java/
  8. js/
  9. python/
  10. research/
  11. scripts/
  12. tests/
  13. .editorconfig
  14. .gitattributes
  15. .gitignore
  16. .gitmodules
  17. .travis.yml
  18. bootstrap
  19. BUILD
  20. CMakeLists.txt
  21. compiler_config_setting.bzl
  22. configure
  23. configure-cmake
  24. configure.ac
  25. CONTRIBUTING.md
  26. LICENSE
  27. Makefile
  28. Makefile.am
  29. MANIFEST.in
  30. premake5.lua
  31. README
  32. README.md
  33. setup.cfg
  34. setup.py
  35. WORKSPACE
README.md

Introduction

Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.

The specification of the Brotli Compressed Data Format is defined in RFC 7932.

Brotli is open-sourced under the MIT License, see the LICENSE file.

Brotli mailing list: https://groups.google.com/forum/#!forum/brotli

TravisCI Build Status AppVeyor Build Status Fuzzing Status

Build instructions

Vcpkg

You can download and install brotli using the vcpkg dependency manager:

git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.sh
./vcpkg integrate install
vcpkg install brotli

The brotli port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please create an issue or pull request on the vcpkg repository.

Autotools-style CMake

configure-cmake is an autotools-style configure script for CMake-based projects (not supported on Windows).

The basic commands to build, test and install brotli are:

$ mkdir out && cd out
$ ../configure-cmake
$ make
$ make test
$ make install

By default, debug binaries are built. To generate "release" Makefile specify --disable-debug option to configure-cmake.

Bazel

See Bazel

CMake

The basic commands to build and install brotli are:

$ mkdir out && cd out
$ cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=./installed ..
$ cmake --build . --config Release --target install

You can use other CMake configuration.

Premake5

See Premake5

Python

To install the latest release of the Python module, run the following:

$ pip install brotli

To install the tip-of-the-tree version, run:

$ pip install --upgrade git+https://github.com/google/brotli

See the Python readme for more details on installing from source, development, and testing.

Benchmarks

Related projects

Disclaimer: Brotli authors take no responsibility for the third party projects mentioned in this section.

Independent decoder implementation by Mark Adler, based entirely on format specification.

JavaScript port of brotli decoder. Could be used directly via npm install brotli

Hand ported decoder / encoder in haxe by Dominik Homberger. Output source code: JavaScript, PHP, Python, Java and C#

7Zip plugin

Dart native bindings