mirror of
https://github.com/nigels-com/glew.git
synced 2025-11-03 22:04:10 +00:00
256 lines
9.1 KiB
Markdown
256 lines
9.1 KiB
Markdown
# GLEW - The OpenGL Extension Wrangler Library
|
|
|
|
The OpenGL Extension Wrangler Library (GLEW) is a cross-platform open-source C/C++ extension loading library. GLEW provides efficient run-time mechanisms for determining which OpenGL extensions are supported on the target platform. OpenGL core and extension functionality is exposed in a single header file. GLEW has been tested on a variety of operating systems, including Windows, Linux, Mac OS X, FreeBSD, Irix, and Solaris.
|
|
|
|
|
|
|
|
http://glew.sourceforge.net/
|
|
|
|
https://github.com/nigels-com/glew
|
|
|
|
[](https://sourceforge.net/projects/glew/files/latest/download)
|
|
[](https://ap-southeast-2.codebuild.aws.amazon.com/project/eyJlbmNyeXB0ZWREYXRhIjoiK3RLWndGOVVkMWthbXRQZCtVTTNOQ0w2dEpxakZ1cVBTNDZ1UldGODdqUERSdkx0U21Nd0RFaGhQL1kycVlmNzh2OXpEYnRKV3hXTVJJdjUvVStCbTl0dkliZm5jRTFsc0VBPSIsIml2UGFyYW1ldGVyU3BlYyI6ImZ0ekRoMkNjaU0rRUt5K2UiLCJtYXRlcmlhbFNldFNlcmlhbCI6MX0%3D)
|
|
|
|
## Table of Contents
|
|
|
|
* [Downloads](#downloads)
|
|
* [Recent snapshots](#recent-snapshots)
|
|
* [Build](#build)
|
|
* [Linux and Mac](#linux-and-mac)
|
|
* [Using GNU Make](#using-gnu-make)
|
|
* [Install build tools](#install-build-tools)
|
|
* [Build](#build-1)
|
|
* [Linux EGL](#linux-egl)
|
|
* [Linux OSMesa](#linux-osmesa)
|
|
* [Linux mingw-w64](#linux-mingw-w64)
|
|
* [Using cmake](#using-cmake)
|
|
* [Install build tools](#install-build-tools-1)
|
|
* [Build](#build-2)
|
|
* [Windows](#windows)
|
|
* [Visual Studio](#visual-studio)
|
|
* [MSYS/Mingw](#msysmingw)
|
|
* [MSYS2/Mingw-w64](#msys2mingw-w64)
|
|
* [glewinfo](#glewinfo)
|
|
* [Code Generation](#code-generation)
|
|
* [Authors](#authors)
|
|
* [Contributions](#contributions)
|
|
* [Copyright and Licensing](#copyright-and-licensing)
|
|
|
|
## Downloads
|
|
|
|
Current release is [2.2.0](https://github.com/nigels-com/glew/releases/tag/glew-2.2.0).
|
|
[(Change Log)](http://glew.sourceforge.net/log.html)
|
|
|
|
Sources available as
|
|
[ZIP](https://github.com/nigels-com/glew/releases/download/glew-2.2.0/glew-2.2.0.zip) or
|
|
[TGZ](https://github.com/nigels-com/glew/releases/download/glew-2.2.0/glew-2.2.0.tgz).
|
|
|
|
Windows binaries for [32-bit and 64-bit](https://github.com/nigels-com/glew/releases/download/glew-2.2.0/glew-2.2.0-win32.zip).
|
|
|
|
### Recent snapshots
|
|
|
|
Snapshots may contain new features, bug-fixes or new OpenGL extensions ahead of tested, official releases.
|
|
|
|
[glew-20220402.tgz](https://sourceforge.net/projects/glew/files/glew/snapshots/glew-20220402.tgz/download) *GLEW 2.2.0 - with fix for glCreateProgressFenceNVX*
|
|
|
|
## Build
|
|
|
|
It is highly recommended to build from a tgz or zip release snapshot.
|
|
The code generation workflow is a complex brew of gnu make, perl and python, that works best on Linux or Mac.
|
|
The code generation is known to work on Windows using [MSYS2](https://www.msys2.org/).
|
|
For most end-users of GLEW the official releases are the best choice, with first class support.
|
|
|
|
### Linux and Mac
|
|
|
|
#### Using GNU Make
|
|
|
|
GNU make is the primary build system for GLEW, historically.
|
|
It includes targets for building the sources and headers, for maintenance purposes.
|
|
|
|
##### Install build tools
|
|
|
|
Debian/Ubuntu/Mint: `$ sudo apt-get install build-essential libxmu-dev libxi-dev libgl-dev`
|
|
|
|
RedHat/CentOS/Fedora: `$ sudo yum install libXmu-devel libXi-devel libGL-devel`
|
|
|
|
FreeBSD: `# pkg install xorg lang/gcc git cmake gmake bash python perl5`
|
|
|
|
##### Build
|
|
|
|
$ make
|
|
$ sudo make install
|
|
$ make clean
|
|
|
|
Targets: `all, glew.lib (sub-targets: glew.lib.shared, glew.lib.static), glew.bin, clean, install, uninstall`
|
|
|
|
Variables: `SYSTEM=linux-clang, GLEW_DEST=/usr/local, STRIP=`
|
|
|
|
_Note: you may need to call `make` in the **auto** folder first_
|
|
|
|
##### Linux EGL
|
|
|
|
$ sudo apt install libegl1-mesa-dev
|
|
$ make SYSTEM=linux-egl
|
|
|
|
##### Linux OSMesa
|
|
|
|
$ sudo apt install libosmesa-dev
|
|
$ make SYSTEM=linux-osmesa
|
|
|
|
##### Linux mingw-w64
|
|
|
|
$ sudo apt install mingw-w64
|
|
$ make SYSTEM=linux-mingw32
|
|
$ make SYSTEM=linux-mingw64
|
|
|
|
#### Using cmake
|
|
|
|
The cmake build is mostly contributor maintained.
|
|
Due to the multitude of use cases this is maintained on a _best effort_ basis.
|
|
Pull requests are welcome.
|
|
|
|
*CMake 3.16 or higher is required.*
|
|
|
|
##### Install build tools
|
|
|
|
Debian/Ubuntu/Mint: `$ sudo apt-get install build-essential libxmu-dev libxi-dev libgl-dev cmake git`
|
|
|
|
RedHat/CentOS/Fedora: `$ sudo yum install libXmu-devel libXi-devel libGL-devel cmake git`
|
|
|
|
##### Build
|
|
|
|
$ cd build
|
|
$ cmake ./cmake
|
|
$ make -j4
|
|
|
|
| Target | Description |
|
|
| ---------- | ----------- |
|
|
| glew | Build the glew shared library. |
|
|
| glew_s | Build the glew static library. |
|
|
| glewinfo | Build the `glewinfo` executable (requires `BUILD_UTILS` to be `ON`). |
|
|
| visualinfo | Build the `visualinfo` executable (requires `BUILD_UTILS` to be `ON`). |
|
|
| install | Install all enabled targets into `CMAKE_INSTALL_PREFIX`. |
|
|
| clean | Clean up build artifacts. |
|
|
| all | Build all enabled targets (default target). |
|
|
|
|
| Variables | Description |
|
|
| --------------- | ----------- |
|
|
| BUILD_UTILS | Build the `glewinfo` and `visualinfo` executables. |
|
|
| GLEW_REGAL | Build in Regal mode. |
|
|
| GLEW_OSMESA | Build in off-screen Mesa mode. |
|
|
| BUILD_FRAMEWORK | Build as MacOSX Framework. Setting `CMAKE_INSTALL_PREFIX` to `/Library/Frameworks` is recommended. |
|
|
|
|
### Windows
|
|
|
|
#### Visual Studio
|
|
|
|
Use the provided Visual Studio project file in build/vc15/
|
|
|
|
Projects for vc6, vc10, vc12 and vc14 are also provided
|
|
|
|
#### MSYS/Mingw
|
|
|
|
Available from [Mingw](http://www.mingw.org/)
|
|
|
|
Requirements: bash, make, gcc
|
|
|
|
$ mingw32-make
|
|
$ mingw32-make install
|
|
$ mingw32-make install.all
|
|
|
|
Alternative toolchain: `SYSTEM=mingw-win32`
|
|
|
|
#### MSYS2/Mingw-w64
|
|
|
|
Available from [Msys2](http://msys2.github.io/) and/or [Mingw-w64](http://mingw-w64.org/)
|
|
|
|
Requirements: bash, make, gcc
|
|
|
|
$ pacman -S gcc make mingw-w64-i686-gcc mingw-w64-x86_64-gcc
|
|
$ make
|
|
$ make install
|
|
$ make install.all
|
|
|
|
Alternative toolchain: `SYSTEM=msys, SYSTEM=msys-win32, SYSTEM=msys-win64`
|
|
|
|
## glewinfo
|
|
|
|
`glewinfo` is a command-line tool useful for inspecting the capabilities of an
|
|
OpenGL implementation and GLEW support for that. Please include `glewinfo.txt`
|
|
with bug reports, as appropriate.
|
|
|
|
---------------------------
|
|
GLEW Extension Info
|
|
---------------------------
|
|
|
|
GLEW version 2.0.0
|
|
Reporting capabilities of pixelformat 3
|
|
Running on a Intel(R) HD Graphics 3000 from Intel
|
|
OpenGL version 3.1.0 - Build 9.17.10.4229 is supported
|
|
|
|
GL_VERSION_1_1: OK
|
|
---------------
|
|
|
|
GL_VERSION_1_2: OK
|
|
---------------
|
|
glCopyTexSubImage3D: OK
|
|
glDrawRangeElements: OK
|
|
glTexImage3D: OK
|
|
glTexSubImage3D: OK
|
|
|
|
...
|
|
|
|
## Code Generation
|
|
|
|
A Unix or Mac environment is needed for building GLEW from scratch to
|
|
include new extensions, or customize the code generation. The extension
|
|
data is regenerated from the top level source directory with:
|
|
|
|
make extensions
|
|
|
|
An alternative to generating the GLEW sources from scratch is to
|
|
download a pre-generated (unsupported) snapshot:
|
|
|
|
https://sourceforge.net/projects/glew/files/glew/snapshots/
|
|
|
|
## Authors
|
|
|
|
GLEW is currently maintained by [Nigel Stewart](https://github.com/nigels-com)
|
|
with bug fixes, new OpenGL extension support and new releases.
|
|
|
|
GLEW was developed by [Milan Ikits](http://www.cs.utah.edu/~ikits/)
|
|
and [Marcelo Magallon](http://wwwvis.informatik.uni-stuttgart.de/~magallon/).
|
|
Aaron Lefohn, Joe Kniss, and Chris Wyman were the first users and also
|
|
assisted with the design and debugging process.
|
|
|
|
The acronym GLEW originates from Aaron Lefohn.
|
|
Pasi Kärkkäinen identified and fixed several problems with
|
|
GLX and SDL. Nate Robins created the `wglinfo` utility, to
|
|
which modifications were made by Michael Wimmer.
|
|
|
|
## Contributions
|
|
|
|
GLEW welcomes community contributions. Typically these are co-ordinated
|
|
via [Issues](https://github.com/nigels-com/glew/issues) or
|
|
[Pull Requests](https://github.com/nigels-com/glew/pulls) in the
|
|
GitHub web interface.
|
|
|
|
Be sure to mention platform and compiler toolchain details when filing
|
|
a bug report. The output of `glewinfo` can be quite useful for discussion
|
|
also.
|
|
|
|
Generally GLEW is usually released once a year, around the time of the Siggraph
|
|
computer graphics conference. If you're not using the current release
|
|
version of GLEW, be sure to check if the issue or bug is fixed there.
|
|
|
|
## Copyright and Licensing
|
|
|
|
GLEW is originally derived from the EXTGL project by Lev Povalahev.
|
|
The source code is licensed under the
|
|
[Modified BSD License](http://glew.sourceforge.net/glew.txt), the
|
|
[Mesa 3-D License](http://glew.sourceforge.net/mesa.txt) (MIT) and the
|
|
[Khronos License](http://glew.sourceforge.net/khronos.txt) (MIT).
|
|
|
|
The automatic code generation scripts are released under the
|
|
[GNU GPL](http://glew.sourceforge.net/gpl.txt).
|