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327 lines
11 KiB
327 lines
11 KiB
# GLFW |
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## Introduction |
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GLFW is a free, Open Source, portable library for OpenGL and OpenGL ES |
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application development. It provides a simple, platform-independent API for |
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creating windows and contexts, reading input, handling events, etc. |
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Version 3.0.2 is *not yet described*. As this is a patch release, there are no |
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API changes. |
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If you are new to GLFW, you may find the |
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[introductory tutorial](http://www.glfw.org/docs/latest/quick.html) for GLFW |
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3 useful. If you have used GLFW 2 in the past, there is a |
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[transition guide](http://www.glfw.org/docs/latest/moving.html) for moving to |
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the GLFW 3 API. |
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## Compiling GLFW |
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### Dependencies |
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To compile GLFW and the accompanying example programs, you will need **CMake**, |
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which will generate the project files or makefiles for your particular |
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development environment. If you are on a Unix-like system such as Linux or |
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FreeBSD or have a package system like Fink, MacPorts, Cygwin or Homebrew, you |
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can simply install its CMake package. If not, you can get installers for |
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Windows and OS X from the [CMake website](http://www.cmake.org/). |
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Additional dependencies are listed below. |
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#### Visual C++ on Windows |
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The Microsoft Platform SDK that is installed along with Visual C++ contains all |
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the necessary headers, link libraries and tools except for CMake. |
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#### MinGW or MinGW-w64 on Windows |
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These packages contain all the necessary headers, link libraries and tools |
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except for CMake. |
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#### MinGW or MinGW-w64 cross-compilation |
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Both Cygwin and many Linux distributions have MinGW or MinGW-w64 packages. For |
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example, Cygwin has the `mingw64-i686-gcc` and `mingw64-x86_64-gcc` packages |
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for 32- and 64-bit version of MinGW-w64, while Debian GNU/Linux and derivatives |
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like Ubuntu have the `mingw-w64` package for both. |
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GLFW has CMake toolchain files in the `CMake/` directory that allow for easy |
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cross-compilation of Windows binaries. To use these files you need to add a |
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special parameter when generating the project files or makefiles: |
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cmake -DCMAKE_TOOLCHAIN_FILE=<toolchain-file> . |
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The exact toolchain file to use depends on the prefix used by the MinGW or |
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MinGW-w64 binaries on your system. You can usually see this in the /usr |
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directory. For example, both the Debian/Ubuntu and Cygwin MinGW-w64 packages |
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have `/usr/x86_64-w64-mingw32` for the 64-bit compilers, so the correct |
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invocation would be: |
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cmake -DCMAKE_TOOLCHAIN_FILE=CMake/x86_64-w64-mingw32.cmake . |
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For more details see the article |
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[CMake Cross Compiling](http://www.paraview.org/Wiki/CMake_Cross_Compiling) on |
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the CMake wiki. |
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#### Xcode on OS X |
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Xcode contains all necessary tools except for CMake. The necessary headers and |
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libraries are included in the core OS frameworks. Xcode can be downloaded from |
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the Mac App Store. |
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#### Unix-like systems with X11 |
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To compile GLFW for X11, you need to have the X11 and OpenGL header packages |
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installed, as well as the basic development tools like GCC and make. For |
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example, on Ubuntu and other distributions based on Debian GNU/Linux, you need |
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to install the `xorg-dev` and `libglu1-mesa-dev` packages. The former pulls in |
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all X.org header packages and the latter pulls in the Mesa OpenGL and GLU |
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packages. Note that using header files and libraries from Mesa during |
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compilation *will not* tie your binaries to the Mesa implementation of OpenGL. |
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### Generating with CMake |
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Once you have all necessary dependencies, it is time to generate the project |
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files or makefiles for your development environment. CMake needs to know two |
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paths for this: the path to the source directory and the target path for the |
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generated files and compiled binaries. If these are the same, it is called an |
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in-tree build, otherwise it is called an out-of-tree build. |
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One of several advantages of out-of-tree builds is that you can generate files |
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and compile for different development environments using a single source tree. |
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#### Using CMake from the command-line |
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To make an in-tree build, enter the root directory of the GLFW source tree and |
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run CMake. The current directory is used as target path, while the path |
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provided as an argument is used to find the source tree. |
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cd <glfw-root-dir> |
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cmake . |
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To make an out-of-tree build, make another directory, enter it and run CMake |
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with the (relative or absolute) path to the root of the source tree as an |
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argument. |
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cd <glfw-root-dir> |
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mkdir build |
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cd build |
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cmake .. |
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#### Using the CMake GUI |
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If you are using the GUI version, choose the root of the GLFW source tree as |
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source location and the same directory or another, empty directory as the |
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destination for binaries. Choose *Configure*, change any options you wish to, |
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*Configure* again to let the changes take effect and then *Generate*. |
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### CMake options |
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The CMake files for GLFW provide a number of options, although not all are |
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available on all supported platforms. Some of these are de facto standards |
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among CMake users and so have no `GLFW_` prefix. |
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If you are using the GUI version of CMake, these are listed and can be changed |
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from there. If you are using the command-line version, use the `ccmake` tool. |
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Some package systems like Ubuntu and other distributions based on Debian |
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GNU/Linux have this tool in a separate `cmake-curses-gui` package. |
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#### Shared options |
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`BUILD_SHARED_LIBS` determines whether GLFW is built as a static |
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library or as a DLL / shared library / dynamic library. |
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`LIB_SUFFIX` affects where the GLFW shared /dynamic library is |
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installed. If it is empty, it is installed to `$PREFIX/lib`. If it is set to |
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`64`, it is installed to `$PREFIX/lib64`. |
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`GLFW_BUILD_EXAMPLES` determines whether the GLFW examples are built |
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along with the library. |
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`GLFW_BUILD_TESTS` determines whether the GLFW test programs are |
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built along with the library. |
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#### OS X specific options |
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`GLFW_USE_CHDIR` determines whether `glfwInit` changes the current |
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directory of bundled applications to the `Contents/Resources` directory. |
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`GLFW_USE_MENUBAR` determines whether the first call to |
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`glfwCreateWindow` sets up a minimal menu bar. |
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`GLFW_BUILD_UNIVERSAL` determines whether to build Universal Binaries. |
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#### Windows specific options |
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`USE_MSVC_RUNTIME_LIBRARY_DLL` determines whether to use the DLL version or the |
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static library version of the Visual C++ runtime library. |
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`GLFW_USE_DWM_SWAP_INTERVAL` determines whether the swap interval is set even |
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when DWM compositing is enabled. This can lead to severe jitter and is not |
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usually recommended. |
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#### EGL specific options |
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`GLFW_USE_EGL` determines whether to use EGL instead of the platform-specific |
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context creation API. Note that EGL is not yet provided on all supported |
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platforms. |
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`GLFW_CLIENT_LIBRARY` determines which client API library to use. If set to |
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`opengl` the OpenGL library is used, if set to `glesv1` for the OpenGL ES 1.x |
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library is used, or if set to `glesv2` the OpenGL ES 2.0 library is used. The |
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selected library and its header files must be present on the system for this to |
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work. |
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## Installing GLFW |
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A rudimentary installation target is provided for all supported platforms via |
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CMake. |
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## Using GLFW |
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See the [GLFW documentation](http://www.glfw.org/docs/latest/). |
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## Changelog |
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- Bugfix: The `-Wall` flag was not used with Clang and other GCC compatibles |
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- Bugfix: The default for `GLFW_ALPHA_BITS` was set to zero |
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- [Win32] Added `_GLFW_USE_DWM_SWAP_INTERVAL` for forcing the swap interval |
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to be set even when DWM compositing is enabled |
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- [Win32] Bugfix: The clipboard string was not freed on terminate |
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- [Win32] Bugfix: Entry points for OpenGL 1.0 and 1.1 functions were not |
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returned by `glfwGetProcAddress` |
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- [Win32] Bugfix: The `user32` and `dwmapi` module handles were not freed on |
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library termination |
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- [Cocoa] Added support for precise scrolling deltas on OS X 10.7 and later |
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- [Cocoa] Enabled explicit creation of OpenGL 3.x and 4.x contexts as supported |
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by OS X 10.9 |
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- [Cocoa] Bugfix: The clipboard string was not freed on terminate |
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- [Cocoa] Bugfix: Selectors were used that are not declared by the 10.6 SDK |
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- [Cocoa] Bugfix: The position set by `glfwSetWindowPos` was incorrect |
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- [X11] Bugfix: Override-redirect windows were resized to the desired instead |
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of the actual resolution of the selected video mode |
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- [X11] Bugfix: Screensaver override for full screen windows had a possible |
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race condition |
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- [X11] Bugfix: The reported window position did not account for the size of |
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the window frame on some WMs |
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- [X11] Bugfix: The original video mode of a monitor was overwritten by calls |
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to `glfwSetWindowSize` |
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## Contact |
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The official website for GLFW is [glfw.org](http://www.glfw.org/). There you |
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can find the latest version of GLFW, as well as news, documentation and other |
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information about the project. |
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If you have questions related to the use of GLFW, we have a |
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[support forum](https://sourceforge.net/p/glfw/discussion/247562/), and the IRC |
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channel `#glfw` on [Freenode](http://freenode.net/). |
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If you have a bug to report, a patch to submit or a feature you'd like to |
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request, please file it in the |
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[issue tracker](https://github.com/glfw/glfw/issues) on GitHub. |
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Finally, if you're interested in helping out with the development of GLFW or |
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porting it to your favorite platform, we have an occasionally active |
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[developer's mailing list](https://lists.stacken.kth.se/mailman/listinfo/glfw-dev), |
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or you could join us on `#glfw`. |
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## Acknowledgements |
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GLFW exists because people around the world donated their time and lent their |
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skills. |
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- Bobyshev Alexander |
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- artblanc |
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- arturo |
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- Matt Arsenault |
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- Keith Bauer |
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- John Bartholomew |
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- Niklas Behrens |
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- Niklas Bergström |
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- blanco |
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- Lambert Clara |
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- Noel Cower |
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- Jarrod Davis |
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- Olivier Delannoy |
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- Paul R. Deppe |
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- Jonathan Dummer |
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- Ralph Eastwood |
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- Gerald Franz |
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- GeO4d |
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- Marcus Geelnard |
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- Stefan Gustavson |
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- Sylvain Hellegouarch |
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- heromyth |
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- Paul Holden |
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- Toni Jovanoski |
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- Osman Keskin |
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- Cameron King |
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- Peter Knut |
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- Robin Leffmann |
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- Glenn Lewis |
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- Shane Liesegang |
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- Дмитри Малышев |
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- Martins Mozeiko |
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- Tristam MacDonald |
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- Hans Mackowiak |
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- Kyle McDonald |
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- David Medlock |
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- Jonathan Mercier |
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- Marcel Metz |
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- Kenneth Miller |
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- Bruce Mitchener |
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- Jeff Molofee |
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- Jon Morton |
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- Julian Møller |
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- Ozzy |
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- Peoro |
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- Braden Pellett |
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- Arturo J. Pérez |
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- Jorge Rodriguez |
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- Ed Ropple |
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- Riku Salminen |
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- Sebastian Schuberth |
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- Matt Sealey |
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- SephiRok |
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- Steve Sexton |
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- Dmitri Shuralyov |
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- Daniel Skorupski |
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- Bradley Smith |
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- Julian Squires |
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- Johannes Stein |
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- Justin Stoecker |
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- Nathan Sweet |
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- TTK-Bandit |
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- Sergey Tikhomirov |
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- Samuli Tuomola |
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- Jari Vetoniemi |
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- Simon Voordouw |
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- Torsten Walluhn |
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- Jay Weisskopf |
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- Frank Wille |
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- yuriks |
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- Santi Zupancic |
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- Lasse Öörni |
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- All the unmentioned and anonymous contributors in the GLFW community, for bug |
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reports, patches, feedback, testing and encouragement |
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