107 lines
4.8 KiB
Plaintext
107 lines
4.8 KiB
Plaintext
freeglut 3.0.0-1.mp for MSVC
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This package contains freeglut import libraries, headers, and Windows DLLs.
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These allow 32 and 64 bit GLUT applications to be compiled on Windows using
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Microsoft Visual C++.
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For more information on freeglut, visit http://freeglut.sourceforge.net/.
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Installation
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Create a folder on your PC which is readable by all users, for example
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“C:\Program Files\Common Files\MSVC\freeglut\” on a typical Windows system. Copy
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the “lib\” and “include\” folders from this zip archive to that location.
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The appropriate freeglut DLL can either be placed in the same folder as your
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application, or can be installed in a system-wide folder which appears in your
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%PATH% environment variable. Be careful not to mix the 32 bit DLL up with the 64
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bit DLL, as they are not interchangeable.
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Compiling 32 bit Applications
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To create a 32 bit freeglut application, create a new Win32 C++ project in MSVC.
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From the “Win32 Application Wizard”, choose a “Windows application”, check the
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“Empty project” box, and submit.
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You’ll now need to configure the compiler and linker settings. Open up the
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project properties, and select “All Configurations” (this is necessary to ensure
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our changes are applied for both debug and release builds). Open up the
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“general” section under “C/C++”, and configure the “include\” folder you created
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above as an “Additional Include Directory”. If you have more than one GLUT
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package which contains a “glut.h” file, it’s important to ensure that the
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freeglut include folder appears above all other GLUT include folders.
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Now open up the “general” section under “Linker”, and configure the “lib\”
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folder you created above as an “Additional Library Directory”. A freeglut
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application depends on the import libraries “freeglut.lib” and “opengl32.lib”,
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which can be configured under the “Input” section. However, it shouldn’t be
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necessary to explicitly state these dependencies, since the freeglut headers
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handle this for you. Now open the “Advanced” section, and enter “mainCRTStartup”
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as the “Entry Point” for your application. This is necessary because GLUT
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applications use “main” as the application entry point, not “WinMain”—without it
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you’ll get an undefined reference when you try to link your application.
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That’s all of your project properties configured, so you can now add source
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files to your project and build the application. If you want your application to
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be compatible with GLUT, you should “#include <GL/glut.h>”. If you want to use
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freeglut specific extensions, you should “#include <GL/freeglut.h>” instead.
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Don’t forget to either include the freeglut DLL when distributing applications,
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or provide your users with some method of obtaining it if they don’t already
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have it!
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Compiling 64 bit Applications
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Building 64 bit applications is almost identical to building 32 bit applications.
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When you use the configuration manager to add the x64 platform, it’s easiest to
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copy the settings from the Win32 platform. If you do so, it’s then only necessary
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to change the “Additional Library Directories” configuration so that it
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references the directory containing the 64 bit import library rather
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than the 32 bit one.
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Problems?
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If you have problems using this package (compiler / linker errors etc.), please
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check that you have followed all of the steps in this readme file correctly.
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Almost all of the problems which are reported with these packages are due to
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missing a step or not doing it correctly, for example trying to build a 32 bit
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app against the 64 bit import library. If you have followed all of the steps
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correctly but your application still fails to build, try building a very simple
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but functional program (the example at
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http://www.transmissionzero.co.uk/computing/using-glut-with-mingw/ works fine
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with MSVC). A lot of people try to build very complex applications after
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installing these packages, and often the error is with the application code or
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other library dependencies rather than freeglut.
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If you still can’t get it working after trying to compile a simple application,
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then please get in touch via http://www.transmissionzero.co.uk/contact/,
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providing as much detail as you can. Please don’t complain to the freeglut guys
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unless you’re sure it’s a freeglut bug, and have reproduced the issue after
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compiling freeglut from the latest SVN version—if that’s still the case, I’m
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sure they would appreciate a bug report or a patch.
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Changelog
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2015–07–22: Release 3.0.0-2.mp
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• Modified the freeglut_std.h file so that it doesn’t try to link against the
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freeglutd.lib import library.
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2015–03–15: Release 3.0.0-1.mp
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• First 3.0.0 MSVC release. I’ve built the package using Visual Studio 2013,
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and the only change I’ve made is to the DLL version resource—I’ve changed
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the description so that my MinGW and MSVC builds are distinguishable from
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each other (and other builds) using Windows Explorer.
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Transmission Zero
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2015–07–22
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http://www.transmissionzero.co.uk/
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