399c2a1fad
The documentation claims that any extension loader library header
included before the GLFW one will prevent the inclusion of the
default OpenGL header. In reality this only worked if the loader
defined the canonical desktop OpenGL __gl_h_ inclusion guard and even
then relied on the OpenGL header to detect this.
This is the companion to 105cf32e0b, which
added the preprocessor logic to check for many known OpenGL and OpenGL
ES inclusion guards and not even attempt to include the default header
if any are present.
Some clarification of the language around header inclusion has also been
attempted, including making GLFW_INCLUDE_NONE more prominent.
Fixes #1695.
412 lines
14 KiB
Markdown
412 lines
14 KiB
Markdown
# GLFW
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[](https://travis-ci.org/glfw/glfw)
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[](https://ci.appveyor.com/project/elmindreda/glfw)
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[](https://scan.coverity.com/projects/glfw-glfw)
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## Introduction
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GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan
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application development. It provides a simple, platform-independent API for
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creating windows, contexts and surfaces, reading input, handling events, etc.
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GLFW natively supports Windows, macOS and Linux and other Unix-like systems. On
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Linux both X11 and Wayland are supported.
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GLFW is licensed under the [zlib/libpng
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license](http://www.glfw.org/license.html).
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You can [download](http://www.glfw.org/download.html) the latest stable release
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as source or Windows binaries, or fetch the `latest` branch from GitHub. Each
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release starting with 3.0 also has a corresponding [annotated
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tag](https://github.com/glfw/glfw/releases) with source and binary archives.
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The [documentation](http://www.glfw.org/docs/latest/) is available online and is
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included in all source and binary archives. See the [release
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notes](https://www.glfw.org/docs/latest/news.html) for new features, caveats and
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deprecations in the latest release. For more details see the [version
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history](http://www.glfw.org/changelog.html).
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The `master` branch is the stable integration branch and _should_ always compile
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and run on all supported platforms, although details of newly added features may
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change until they have been included in a release. New features and many bug
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fixes live in [other branches](https://github.com/glfw/glfw/branches/all) until
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they are stable enough to merge.
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If you are new to GLFW, you may find the
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[tutorial](http://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful. If
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you have used GLFW 2 in the past, there is a [transition
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guide](http://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
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3 API.
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## Compiling GLFW
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GLFW itself requires only the headers and libraries for your OS and window
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system. It does not need the headers for any context creation API (WGL, GLX,
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EGL, NSGL, OSMesa) or rendering API (OpenGL, OpenGL ES, Vulkan) to enable
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support for them.
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GLFW supports compilation on Windows with Visual C++ 2010 and later, MinGW and
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MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC
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and Clang. It will likely compile in other environments as well, but this is
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not regularly tested.
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There are [pre-compiled Windows binaries](http://www.glfw.org/download.html)
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available for all supported compilers.
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See the [compilation guide](http://www.glfw.org/docs/latest/compile.html) for
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more information about how to compile GLFW yourself.
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## Using GLFW
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See the [documentation](http://www.glfw.org/docs/latest/) for tutorials, guides
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and the API reference.
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## Contributing to GLFW
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See the [contribution
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guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
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more information.
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## System requirements
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GLFW supports Windows XP and later and macOS 10.8 and later. Linux and other
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Unix-like systems running the X Window System are supported even without
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a desktop environment or modern extensions, although some features require
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a running window or clipboard manager. The OSMesa backend requires Mesa 6.3.
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See the [compatibility guide](http://www.glfw.org/docs/latest/compat.html)
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in the documentation for more information.
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## Dependencies
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GLFW itself needs only CMake 3.1 or later and the headers and libraries for your
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OS and window system.
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The (experimental) Wayland backend also depends on the `extra-cmake-modules`
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package, which is used to generate Wayland protocol headers.
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The examples and test programs depend on a number of tiny libraries. These are
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located in the `deps/` directory.
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- [getopt\_port](https://github.com/kimgr/getopt_port/) for examples
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with command-line options
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- [TinyCThread](https://github.com/tinycthread/tinycthread) for threaded
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examples
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- [glad2](https://github.com/Dav1dde/glad) for loading OpenGL and Vulkan
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functions
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- [linmath.h](https://github.com/datenwolf/linmath.h) for linear algebra in
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examples
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- [Nuklear](https://github.com/vurtun/nuklear) for test and example UI
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- [stb\_image\_write](https://github.com/nothings/stb) for writing images to disk
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The documentation is generated with [Doxygen](http://doxygen.org/) if CMake can
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find that tool.
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## Reporting bugs
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Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).
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Please check the [contribution
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guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
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information on what to include when reporting a bug.
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## Changelog
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- Added `GLFW_RESIZE_NWSE_CURSOR`, `GLFW_RESIZE_NESW_CURSOR`,
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`GLFW_RESIZE_ALL_CURSOR` and `GLFW_NOT_ALLOWED_CURSOR` cursor shapes (#427)
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- Added `GLFW_RESIZE_EW_CURSOR` alias for `GLFW_HRESIZE_CURSOR` (#427)
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- Added `GLFW_RESIZE_NS_CURSOR` alias for `GLFW_VRESIZE_CURSOR` (#427)
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- Added `GLFW_POINTING_HAND_CURSOR` alias for `GLFW_HAND_CURSOR` (#427)
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- Added `GLFW_FEATURE_UNAVAILABLE` error for platform limitations (#1692)
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- Added `GLFW_FEATURE_UNIMPLEMENTED` error for incomplete backends (#1692)
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- Updated the minimum required CMake version to 3.1
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- Disabled tests and examples by default when built as a CMake subdirectory
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- Bugfix: The CMake config-file package used an absolute path and was not
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relocatable (#1470)
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- Bugfix: Video modes with a duplicate screen area were discarded (#1555,#1556)
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- Bugfix: Compiling with -Wextra-semi caused warnings (#1440)
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- Bugfix: Built-in mappings failed because some OEMs re-used VID/PID (#1583)
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- Bugfix: Some extension loader headers did not prevent default OpenGL header
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inclusion (#1695)
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- [Win32] Added the `GLFW_WIN32_KEYBOARD_MENU` window hint for enabling access
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to the window menu
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- [Win32] Added a version info resource to the GLFW DLL
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- [Win32] Bugfix: `GLFW_INCLUDE_VULKAN` plus `VK_USE_PLATFORM_WIN32_KHR` caused
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symbol redefinition (#1524)
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- [Win32] Bugfix: The cursor position event was emitted before its cursor enter
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event (#1490)
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- [Win32] Bugfix: The window hint `GLFW_MAXIMIZED` did not move or resize the
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window (#1499)
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- [Win32] Bugfix: Disabled cursor mode interfered with some non-client actions
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- [Win32] Bugfix: Super key was not released after Win+V hotkey (#1622)
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- [Win32] Bugfix: `glfwGetKeyName` could access out of bounds and return an
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invalid pointer
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- [Win32] Bugfix: Some synthetic key events were reported as `GLFW_KEY_UNKNOWN`
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(#1623)
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- [Cocoa] Added support for `VK_EXT_metal_surface` (#1619)
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- [Cocoa] Added locating the Vulkan loader at runtime in an application bundle
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- [Cocoa] Moved main menu creation to GLFW initialization time (#1649)
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- [Cocoa] Removed dependency on the CoreVideo framework
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- [Cocoa] Bugfix: `glfwSetWindowSize` used a bottom-left anchor point (#1553)
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- [Cocoa] Bugfix: Window remained on screen after destruction until event poll
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(#1412)
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- [Cocoa] Bugfix: Event processing before window creation would assert (#1543)
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- [Cocoa] Bugfix: Undecorated windows could not be iconified on recent macOS
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- [Cocoa] Bugfix: Touching event queue from secondary thread before main thread
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would abort (#1649)
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- [Cocoa] Use `CALayer` instead of `NSView` for `EGLNativeWindowType` (#1169)
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- [X11] Bugfix: The CMake files did not check for the XInput headers (#1480)
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- [X11] Bugfix: Key names were not updated when the keyboard layout changed
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(#1462,#1528)
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- [X11] Bugfix: Decorations could not be enabled after window creation (#1566)
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- [X11] Bugfix: Content scale fallback value could be inconsistent (#1578)
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- [X11] Bugfix: `glfwMaximizeWindow` had no effect on hidden windows
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- [X11] Bugfix: Clearing `GLFW_FLOATING` on a hidden window caused invalid read
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- [X11] Bugfix: Changing `GLFW_FLOATING` on a hidden window could silently fail
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- [X11] Bugfix: Disabled cursor mode was interrupted by indicator windows
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- [X11] Bugfix: Monitor physical dimensions could be reported as zero mm
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- [X11] Bugfix: Window position events were not emitted during resizing (#1613)
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- [X11] Bugfix: `glfwFocusWindow` could terminate on older WMs or without a WM
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- [X11] Bugfix: Querying a disconnected monitor could segfault (#1602)
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- [X11] Bugfix: IME input of CJK was broken for "C" locale (#1587,#1636)
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- [X11] Bugfix: Termination would segfault if the IM had been destroyed
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- [X11] Bugfix: Any IM started after initialization would not be detected
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- [X11] Bugfix: Xlib errors caused by other parts of the application could be
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reported as GLFW errors
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- [X11] Bugfix: A handle race condition could cause a `BadWindow` error (#1633)
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- [X11] Bugfix: XKB path used keysyms instead of physical locations for
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non-printable keys (#1598)
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- [X11] Bugfix: Function keys were mapped to `GLFW_KEY_UNKNOWN` for some layout
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combinaitons (#1598)
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- [Wayland] Removed support for `wl_shell` (#1443)
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- [Wayland] Bugfix: The `GLFW_HAND_CURSOR` shape used the wrong image (#1432)
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- [Wayland] Bugfix: `CLOCK_MONOTONIC` was not correctly enabled
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- [POSIX] Bugfix: `CLOCK_MONOTONIC` was not correctly tested for or enabled
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- [NSGL] Removed enforcement of forward-compatible flag for core contexts
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- [NSGL] Bugfix: `GLFW_COCOA_RETINA_FRAMEBUFFER` had no effect on newer
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macOS versions (#1442)
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- [NSGL] Bugfix: Workaround for swap interval on 10.14 broke on 10.12 (#1483)
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## Contact
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On [glfw.org](http://www.glfw.org/) you can find the latest version of GLFW, as
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well as news, documentation and other 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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[forum](https://discourse.glfw.org/), and the `#glfw` IRC channel on
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[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, join us on the forum, GitHub or IRC.
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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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- Matt Arsenault
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- David Avedissian
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- Keith Bauer
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- John Bartholomew
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- Coşku Baş
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- Niklas Behrens
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- Andrew Belt
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- Niklas Bergström
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- Denis Bernard
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- Doug Binks
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- blanco
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- Kyle Brenneman
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- Rok Breulj
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- Kai Burjack
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- Martin Capitanio
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- David Carlier
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- Arturo Castro
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- Chi-kwan Chan
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- Ian Clarkson
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- Michał Cichoń
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- Lambert Clara
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- Anna Clarke
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- Yaron Cohen-Tal
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- Omar Cornut
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- Andrew Corrigan
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- Bailey Cosier
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- Noel Cower
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- Jason Daly
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- Jarrod Davis
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- Olivier Delannoy
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- Paul R. Deppe
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- Michael Dickens
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- Роман Донченко
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- Mario Dorn
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- Wolfgang Draxinger
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- Jonathan Dummer
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- Ralph Eastwood
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- Fredrik Ehnbom
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- Robin Eklind
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- Siavash Eliasi
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- Felipe Ferreira
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- Michael Fogleman
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- Gerald Franz
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- Mário Freitas
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- GeO4d
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- Marcus Geelnard
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- Charles Giessen
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- Ryan C. Gordon
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- Stephen Gowen
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- Kovid Goyal
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- Eloi Marín Gratacós
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- Stefan Gustavson
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- Jonathan Hale
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- Sylvain Hellegouarch
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- Matthew Henry
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- heromyth
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- Lucas Hinderberger
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- Paul Holden
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- Warren Hu
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- Charles Huber
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- IntellectualKitty
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- Aaron Jacobs
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- Erik S. V. Jansson
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- Toni Jovanoski
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- Arseny Kapoulkine
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- Cem Karan
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- Osman Keskin
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- Josh Kilmer
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- Byunghoon Kim
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- Cameron King
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- Peter Knut
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- Christoph Kubisch
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- Yuri Kunde Schlesner
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- Rokas Kupstys
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- Konstantin Käfer
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- Eric Larson
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- Francis Lecavalier
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- Robin Leffmann
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- Glenn Lewis
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- Shane Liesegang
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- Anders Lindqvist
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- Leon Linhart
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- Eyal Lotem
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- Aaron Loucks
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- Luflosi
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- lukect
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- Tristam MacDonald
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- Hans Mackowiak
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- Дмитри Малышев
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- Zbigniew Mandziejewicz
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- Adam Marcus
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- Célestin Marot
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- Kyle McDonald
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- David Medlock
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- Bryce Mehring
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- Jonathan Mercier
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- Marcel Metz
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- Liam Middlebrook
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- Ave Milia
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- Jonathan Miller
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- Kenneth Miller
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- Bruce Mitchener
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- Jack Moffitt
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- Jeff Molofee
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- Alexander Monakov
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- Pierre Morel
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- Jon Morton
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- Pierre Moulon
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- Martins Mozeiko
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- Julian Møller
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- ndogxj
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- Kristian Nielsen
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- Kamil Nowakowski
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- Denis Ovod
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- Ozzy
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- Andri Pálsson
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- Peoro
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- Braden Pellett
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- Christopher Pelloux
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- Arturo J. Pérez
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- Anthony Pesch
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- Orson Peters
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- Emmanuel Gil Peyrot
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- Cyril Pichard
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- Keith Pitt
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- Stanislav Podgorskiy
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- Konstantin Podsvirov
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- Nathan Poirier
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- Alexandre Pretyman
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- Pablo Prietz
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- przemekmirek
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- pthom
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- Guillaume Racicot
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- Philip Rideout
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- Eddie Ringle
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- Max Risuhin
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- Jorge Rodriguez
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- Ed Ropple
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- Aleksey Rybalkin
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- Riku Salminen
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- Brandon Schaefer
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- Sebastian Schuberth
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- Christian Sdunek
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- Matt Sealey
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- Steve Sexton
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- Arkady Shapkin
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- Ali Sherief
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- Yoshiki Shibukawa
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- Dmitri Shuralyov
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- Daniel Skorupski
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- Bradley Smith
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- Cliff Smolinsky
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- Patrick Snape
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- Erlend Sogge Heggen
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- Julian Squires
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- Johannes Stein
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- Pontus Stenetorp
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- Michael Stocker
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- Justin Stoecker
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- Elviss Strazdins
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- Paul Sultana
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- Nathan Sweet
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- TTK-Bandit
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- Jared Tiala
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- Sergey Tikhomirov
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- Arthur Tombs
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- Ioannis Tsakpinis
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- Samuli Tuomola
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- Matthew Turner
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- urraka
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- Elias Vanderstuyft
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- Stef Velzel
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- Jari Vetoniemi
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- Ricardo Vieira
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- Nicholas Vitovitch
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- Simon Voordouw
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- Corentin Wallez
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- Torsten Walluhn
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- Patrick Walton
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- Xo Wang
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- Jay Weisskopf
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- Frank Wille
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- Ryogo Yoshimura
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- Lukas Zanner
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- Andrey Zholos
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- Santi Zupancic
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- Jonas Ådahl
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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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