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144 lines
4.6 KiB
Markdown
144 lines
4.6 KiB
Markdown
# GLEW - The OpenGL Extension Wrangler Library
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http://glew.sourceforge.net/
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https://github.com/nigels-com/glew
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[](https://travis-ci.org/nigels-com/glew)
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[](https://gitter.im/nigels-com/glew?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
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## Downloads
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Current release is [1.13.0](https://sourceforge.net/projects/glew/files/glew/1.13.0/).
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[(Change Log)](http://glew.sourceforge.net/log.html)
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Sources available as
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[ZIP](https://sourceforge.net/projects/glew/files/glew/1.13.0/glew-1.13.0.zip/download) or
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[TGZ](https://sourceforge.net/projects/glew/files/glew/1.13.0/glew-1.13.0.tgz/download).
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Windows binaries for [32-bit and 64-bit](https://sourceforge.net/projects/glew/files/glew/1.13.0/glew-1.13.0-win32.zip/download).
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### Recent snapshots
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Snapshots may contain new features, bug-fixes or new OpenGL extensions ahead of tested, official releases.
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[glew-20150805.tgz](http://sourceforge.net/projects/glew/files/glew/snapshots/glew-20150805.tgz/download)
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[glew-20150124.tgz](http://sourceforge.net/projects/glew/files/glew/snapshots/glew-20150124.tgz/download)
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## Build
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From a downloaded tarball or zip archive:
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### Linux and Mac
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#### Using GNU Make
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##### Install build tools
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Debian/Ubuntu/Mint: `$ sudo apt-get install build-essential libXmu-dev libXi-dev libgl-dev git`
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RedHat/CentOS/Fedora: `$ sudo yum install libXmu-devel libXi-devel libGL-devel git`
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##### Build
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$ make
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$ sudo make install
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$ make clean
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Targets: `all, glew.lib, glew.bin, clean, install, uninstall`
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Variables: `SYSTEM=linux-clang, GLEW_DEST=/usr/local, STRIP=`
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#### Using cmake
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*CMake 2.8.12 or higher is required.*
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##### Install build tools
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Debian/Ubuntu/Mint: `$ sudo apt-get install build-essential libXmu-dev libXi-dev libgl-dev git cmake`
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RedHat/CentOS/Fedora: `$ sudo yum install libXmu-devel libXi-devel libGL-devel git cmake`
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##### Build
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$ cd build
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$ cmake ./cmake
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$ make -j4
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### Windows
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Use the provided Visual Studio project file in build/vc12/
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## glewinfo
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`glewinfo` is a command-line tool useful for inspecting the capabilities of an
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OpenGL implementation and GLEW support for that. Please include the output of
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`glewinfo` with bug reports, as appropriate.
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---------------------------
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GLEW Extension Info
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---------------------------
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GLEW version 2.0.0
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Reporting capabilities of pixelformat 3
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Running on a Intel(R) HD Graphics 3000 from Intel
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OpenGL version 3.1.0 - Build 9.17.10.4229 is supported
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GL_VERSION_1_1: OK
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---------------
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GL_VERSION_1_2: OK
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---------------
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glCopyTexSubImage3D: OK
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glDrawRangeElements: OK
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glTexImage3D: OK
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glTexSubImage3D: OK
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...
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## Code Generation
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A Unix or Mac environment is neded for building GLEW from scratch to
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include new extensions, or customize the code generation. The extension
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data is regenerated from the top level source directory with:
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make extensions
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An alternative to generating the GLEW sources from scratch is to
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download a pre-generated (unsupported) snapshot:
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https://sourceforge.net/projects/glew/files/glew/snapshots/
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Travis-built snapshots are also available:
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https://glew.s3.amazonaws.com/index.html
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## Authors
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GLEW is currently maintained by [Nigel Stewart](https://github.com/nigels-com)
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with bug fixes, new OpenGL extension support and new releases.
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GLEW was developed by [Milan Ikits](http://www.cs.utah.edu/~ikits/)
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and [Marcelo Magallon](http://wwwvis.informatik.uni-stuttgart.de/~magallon/).
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Aaron Lefohn, Joe Kniss, and Chris Wyman were the first users and also
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assisted with the design and debugging process.
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The acronym GLEW originates from Aaron Lefohn.
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Pasi Kärkkäinen identified and fixed several problems with
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GLX and SDL. Nate Robins created the `wglinfo` utility, to
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which modifications were made by Michael Wimmer.
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## Copyright and Licensing
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GLEW is originally derived from the EXTGL project by Lev Povalahev.
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The source code is licensed under the
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[Modified BSD License](http://glew.sourceforge.net/glew.txt), the
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[Mesa 3-D License](http://glew.sourceforge.net/mesa.txt) (MIT) and the
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[Khronos License](http://glew.sourceforge.net/khronos.txt) (MIT).
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The automatic code generation scripts are released under the
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[GNU GPL](http://glew.sourceforge.net/gpl.txt).
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