mirror of
https://github.com/thunderbrewhq/thunderbrew
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706c8903a1
* chore(build): add vendored SDL 3.0.0 library * chore(build): add vendored glew-cmake-2.2.0 library * feat(console): in the presence of -opengl launch flag, change GxApi to OpenGl * feat(gx): add uncompleted CGxDeviceGLSDL targeting Windows and Linux * chore(build): change SDL3 linkage from shared (bad) to to static (good)
227 lines
9.4 KiB
HTML
227 lines
9.4 KiB
HTML
<!-- begin header.html -->
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<!--
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The OpenGL Extension Wrangler Library
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Copyright (C) 2008-2019, Nigel Stewart <nigels[]users sourceforge net>
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Copyright (C) 2002-2008, Milan Ikits <milan ikits[]ieee org>
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Copyright (C) 2002-2008, Marcelo E. Magallon <mmagallo[]debian org>
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Copyright (C) 2002, Lev Povalahev
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* The name of the author may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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THE POSSIBILITY OF SUCH DAMAGE.
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-->
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html/4/loose.dtd">
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<html>
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<head>
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<title>GLEW: The OpenGL Extension Wrangler Library</title>
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<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
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<link href="glew.css" type="text/css" rel="stylesheet">
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</head>
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<body bgcolor="#fff0d0">
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<table border="0" width="100%" cellpadding="12" cellspacing="8" style="height:100%">
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<tr>
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<td bgcolor="#ffffff" align="left" valign="top" width="200">
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<table border="0" width="100%" cellpadding="0" cellspacing="0" align="left">
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<tr>
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<td valign="top">
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<table border="0" width="100%" cellpadding="0" cellspacing="0" align="left">
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<tr><td align="center"><i>Latest Release: <a href="https://github.com/nigels-com/glew/releases/tag/glew-2.2.0">2.2.0</a></i></td></tr>
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<tr><td align="center"><br></td></tr>
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<tr><td align="center"><img src="./glew.png" alt="GLEW Logo" width="97" height="75"></td></tr>
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<tr><td align="center"><br></td></tr>
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<tr><td align="center">
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<table border="0" cellpadding="0" cellspacing="0" align="center">
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<tr><td align="center"><a href="index.html">Download</a></td></tr>
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<tr><td align="center"><a href="basic.html">Usage</a></td></tr>
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<tr><td align="center"><a href="build.html">Building</a></td></tr>
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<tr><td align="center">Installation</td></tr>
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<tr><td align="center"><a href="advanced.html">Source Generation</a></td></tr>
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<tr><td align="center"><a href="log.html">Change Log</a></td></tr>
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<tr><td align="center"><br></tr>
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<tr><td align="center"><a href="https://github.com/nigels-com/glew">GitHub</a></td></tr>
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<tr><td align="center"><a href="https://github.com/nigels-com/glew/issues">Issues</a></td></tr>
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<tr><td align="center"><a href="https://github.com/nigels-com/glew/pulls">Pull Requests</a></td></tr>
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<tr><td align="center"><br></tr>
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<tr><td align="center"><a href="https://sourceforge.net/projects/glew">SourceForge Page</a></td></tr>
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</table>
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<tr><td align="center"><br></tr>
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</table>
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</td>
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</tr>
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<tr>
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<td valign="bottom">
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<table border="0" width="100%" cellpadding="5" cellspacing="0" align="left">
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<tr><td align="center"><i>Last Update: 03-15-20</i></td></tr>
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<tr><td align="center">
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<a href="http://www.opengl.org"><img src="./ogl_sm.jpg" width="68" height="35" border="0" alt="OpenGL Logo"></a><br/>
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<a href="https://github.com/nigels-com/glew"><img src="github.png" width="70" height="29" border="0" alt="GitHub Logo"></a><br/>
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<a href="https://travis-ci.org/nigels-com/glew/builds"><img src="travis.png" width="114" height="25" border="0" alt="Travis Logo"></a><br/>
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<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.php?group_id=67586&type=1" width="88" height="31" border="0" alt="SourceForge Logo"></a>
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</td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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</td>
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<td bgcolor="#ffffff" align="left" valign="top">
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<h1>The OpenGL Extension Wrangler Library</h1>
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<!-- end header.html -->
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<h2>Installation</h2>
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<p>
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To use the shared library version of GLEW, you need to copy the
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headers and libraries into their destination directories. On Windows
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this typically boils down to copying:
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</p>
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<table border="0" cellpadding="0" cellspacing="0" align="center"> <!-- bgcolor="#f0f0f0" -->
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<tr><td align="left"><tt>bin/glew32.dll</tt></td><td> to </td>
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<td align="left"><tt>%SystemRoot%/system32</tt></td></tr>
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<tr><td align="left"><tt>lib/glew32.lib</tt></td><td> to </td>
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<td align="left"><tt>{VC Root}/Lib</tt></td></tr>
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<tr><td align="left"><tt>include/GL/glew.h</tt></td><td> to </td>
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<td align="left"><tt>{VC Root}/Include/GL</tt></td></tr>
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<tr><td align="left"><tt>include/GL/wglew.h</tt></td><td> to </td>
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<td align="left"><tt>{VC Root}/Include/GL</tt></td></tr>
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</table>
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<p>
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</p>
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<p>
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where <tt>{VC Root}</tt> is the Visual C++ root directory, typically
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<tt>C:/Program Files/Microsoft Visual Studio/VC98</tt> for Visual
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Studio 6.0 or <tt>C:/Program Files/Microsoft Visual
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Studio .NET 2003/Vc7/PlatformSDK</tt> for Visual Studio .NET.
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</p>
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<p>
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On Unix, typing <tt>make install</tt> will attempt to install GLEW
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into <tt>/usr/include/GL</tt> and <tt>/usr/lib</tt>. You can
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customize the installation target via the <tt>GLEW_DEST</tt>
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environment variable if you do not have write access to these
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directories.
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</p>
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<h2>Building Your Project with GLEW</h2>
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<p>
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There are two ways to build your project with GLEW.
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</p>
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<h3>Including the source files / project file</h3>
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<p>
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The simpler but less flexible way is to include <tt>glew.h</tt> and
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<tt>glew.c</tt> into your project. On Windows, you also need to
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define the <tt>GLEW_STATIC</tt> preprocessor token when building a
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static library or executable, and the <tt>GLEW_BUILD</tt> preprocessor
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token when building a dll. You also need to replace
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<tt><GL/gl.h></tt> and <tt><GL/glu.h></tt> with
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<tt><glew.h></tt> in your code and set the appropriate include
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flag (<tt>-I</tt>) to tell the compiler where to look for it. For
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example:
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</p>
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<p class="pre">
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#include <glew.h><br>
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#include <GL/glut.h><br>
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<gl, glu, and glut functionality is available here><br>
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</p>
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<p>
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Depending on where you put <tt>glew.h</tt> you may also need to change
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the include directives in <tt>glew.c</tt>. Note that if you are using
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GLEW together with GLUT, you have to include <tt>glew.h</tt> first.
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In addition, <tt>glew.h</tt> includes <tt>glu.h</tt>, so you do not
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need to include it separately.
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</p>
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<p>
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On Windows, you also have the option of adding the supplied project
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file <tt>glew_static.dsp</tt> to your workspace (solution) and compile
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it together with your other projects. In this case you also need to
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change the <tt>GLEW_BUILD</tt> preprocessor constant to
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<tt>GLEW_STATIC</tt> when building a static library or executable,
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otherwise you get build errors.
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</p>
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<p>
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<b>Note that GLEW does not use the C
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runtime library, so it does not matter which version (single-threaded,
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multi-threaded or multi-threaded DLL) it is linked with (without
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debugging information). It is, however, always a good idea to compile all
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your projects including GLEW with the same C runtime settings.</b>
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</p>
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<h3>Using GLEW as a shared library</h3>
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<p>
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Alternatively, you can use the provided project files / makefile to
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build a separate shared library you can link your projects with later.
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In this case the best practice is to install <tt>glew.h</tt>,
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<tt>glew32.lib</tt>, and <tt>glew32.dll</tt> / <tt>libGLEW.so</tt> to
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where the OpenGL equivalents <tt>gl.h</tt>, <tt>opengl32.lib</tt>, and
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<tt>opengl32.dll</tt> / <tt>libGL.so</tt> are located. Note that you
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need administrative privileges to do this. If you do not have
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administrator access and your system administrator will not do it for
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you, you can install GLEW into your own lib and include subdirectories
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and tell the compiler where to find it. Then you can just replace
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<tt><GL/gl.h></tt> with <tt><GL/glew.h></tt> in your
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program:
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</p>
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<p class="pre">
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#include <GL/glew.h><br>
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#include <GL/glut.h><br>
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<gl, glu, and glut functionality is available here><br>
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</p>
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<p>
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or:
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</p>
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<p class="pre">
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#include <GL/glew.h><br>
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<gl and glu functionality is available here><br>
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</p>
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<p>
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Remember to link your project with <tt>glew32.lib</tt>,
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<tt>glu32.lib</tt>, and <tt>opengl32.lib</tt> on Windows and
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<tt>libGLEW.so</tt>, <tt>libGLU.so</tt>, and <tt>libGL.so</tt> on
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Unix (<tt>-lGLEW -lGLU -lGL</tt>).
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</p>
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<p>
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It is important to keep in mind that <tt>glew.h</tt> includes neither
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<tt>windows.h</tt> nor <tt>gl.h</tt>. Also, GLEW will warn you by
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issuing a preprocessor error in case you have included <tt>gl.h</tt>,
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<tt>glext.h</tt>, or <tt>glATI.h</tt> before <tt>glew.h</tt>.
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</p>
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</td></tr></table></body>
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