mirror of
https://github.com/gwm17/glfw.git
synced 2024-11-23 02:38:52 -05:00
4f175a911c
This adds the glfwInitAllocator function for specifying a custom memory allocator to use instead of the C runtime library. The allocator is a struct of type GLFWallocator with fields corresponding to malloc, realloc and free, while the internal API corresponds to calloc, realloc and free. Heap allocation calls are filtered before reaching the user-provided functions, so deallocation of NULL and allocations of zero bytes are not passed on, reallocating NULL is transformed into an allocation and reallocating to size zero is transformed into deallocation. The clearing of a new block to zero is performed by the internal calloc-like function. Closes #544. Fixes #1628.
489 lines
17 KiB
Markdown
489 lines
17 KiB
Markdown
# GLFW
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[](https://github.com/glfw/glfw/actions)
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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](https://www.glfw.org/license.html).
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You can [download](https://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](https://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](https://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](https://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](https://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](https://www.glfw.org/download.html)
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available for all supported compilers.
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See the [compilation guide](https://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](https://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](https://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 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/Immediate-Mode-UI/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](https://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 `glfwInitAllocator` for setting a custom memory allocator (#544,#1628)
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- Added `GLFWallocator` struct and `GLFWallocatefun`, `GLFWreallocatefun` and
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`GLFWdeallocatefun` types (#544,#1628)
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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_MOUSE_PASSTHROUGH` window hint for letting mouse input pass
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through the window (#1236,#1568)
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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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- Added `GLFW_ANGLE_PLATFORM_TYPE` init hint and `GLFW_ANGLE_PLATFORM_TYPE_*`
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values to select ANGLE backend (#1380)
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- Added `GLFW_X11_XCB_VULKAN_SURFACE` init hint for selecting X11 Vulkan
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surface extension (#1793)
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- Made joystick subsystem initialize at first use (#1284,#1646)
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- Made `GLFW_DOUBLEBUFFER` a read-only window attribute
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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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- Bugfix: Buffers were swapped at creation on single-buffered windows (#1873)
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- Bugfix: Gamepad mapping updates could spam `GLFW_INVALID_VALUE` due to
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incompatible controllers sharing hardware ID (#1763)
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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] Disabled framebuffer transparency on Windows 7 when DWM windows are
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opaque (#1512)
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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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- [Win32] Bugfix: Non-BMP Unicode codepoint input was reported as UTF-16
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- [Win32] Bugfix: Monitor functions could return invalid values after
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configuration change (#1761)
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- [Win32] Bugfix: Initialization would segfault on Windows 8 (not 8.1) (#1775)
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- [Win32] Bugfix: Duplicate size events were not filtered (#1610)
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- [Win32] Bugfix: Full screen windows were incorrectly resized by DPI changes
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(#1582)
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- [Win32] Bugfix: `GLFW_SCALE_TO_MONITOR` had no effect on systems older than
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Windows 10 version 1703 (#1511)
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- [Win32] Bugfix: `USE_MSVC_RUNTIME_LIBRARY_DLL` had no effect on CMake 3.15 or
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later (#1783,#1796)
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- [Win32] Bugfix: Compilation with LLVM for Windows failed (#1807,#1824,#1874)
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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] Changed `EGLNativeWindowType` from `NSView` to `CALayer` (#1169)
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- [Cocoa] Changed F13 key to report Print Screen for cross-platform consistency
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(#1786)
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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] Bugfix: Non-BMP Unicode codepoint input was reported as UTF-16
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(#1635)
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- [Cocoa] Bugfix: Failing to retrieve the refresh rate of built-in displays
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could leak memory
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- [Cocoa] Bugfix: Objective-C files were compiled as C with CMake 3.19 (#1787)
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- [Cocoa] Bugfix: Duplicate video modes were not filtered out (#1830)
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- [Cocoa] Bugfix: Menubar was not clickable on macOS 10.15+ until it lost and
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regained focus (#1648,#1802)
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- [Cocoa] Bugfix: Monitor name query could segfault on macOS 11 (#1809,#1833)
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- [Cocoa] Bugfix: The install name of the installed dylib was relative (#1504)
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- [Cocoa] Bugfix: The MoltenVK layer contents scale was updated only after
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related events were emitted
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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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- [X11] Bugfix: Keys pressed simultaneously with others were not always
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reported (#1112,#1415,#1472,#1616)
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- [X11] Bugfix: Some window attributes were not applied on leaving fullscreen
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(#1863)
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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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- [Wayland] Bugfix: Repeated keys could be reported with `NULL` window (#1704)
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- [Wayland] Bugfix: Retrieving partial framebuffer size would segfault
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- [Wayland] Bugfix: Scrolling offsets were inverted compared to other platforms
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(#1463)
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- [Wayland] Bugfix: Client-Side Decorations were destroyed in the wrong worder
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(#1798)
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- [Wayland] Bugfix: Monitors physical size could report zero (#1784,#1792)
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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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- [NSGL] Bugfix: Defining `GL_SILENCE_DEPRECATION` externally caused
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a duplicate definition warning (#1840)
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- [EGL] Added platform selection via the `EGL_EXT_platform_base` extension
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(#442)
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- [EGL] Added ANGLE backend selection via `EGL_ANGLE_platform_angle` extension
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(#1380)
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- [EGL] Bugfix: The `GLFW_DOUBLEBUFFER` context attribute was ignored (#1843)
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## Contact
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On [glfw.org](https://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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[Libera.Chat](https://libera.chat/).
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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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- Laurent Aphecetche
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- Matt Arsenault
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- ashishgamedev
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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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- Nevyn Bengtsson
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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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- Nicolas Caramelli
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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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- CuriouserThing
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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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- hdf89shfdfs
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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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- Jong Won Lee
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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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- Marco Lizza
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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 V. McKay
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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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- onox
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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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- Vladimir Perminov
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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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- Luca Rood
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- Ed Ropple
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- Aleksey Rybalkin
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- Mikko Rytkönen
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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
|
|
- TTK-Bandit
|
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- Jared Tiala
|
|
- Sergey Tikhomirov
|
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- Arthur Tombs
|
|
- Ioannis Tsakpinis
|
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- Samuli Tuomola
|
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- Matthew Turner
|
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- urraka
|
|
- Elias Vanderstuyft
|
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- Stef Velzel
|
|
- Jari Vetoniemi
|
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- Ricardo Vieira
|
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- Nicholas Vitovitch
|
|
- Simon Voordouw
|
|
- Corentin Wallez
|
|
- Torsten Walluhn
|
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- Patrick Walton
|
|
- Xo Wang
|
|
- Waris
|
|
- Jay Weisskopf
|
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- Frank Wille
|
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- Andy Williams
|
|
- Joel Winarske
|
|
- Richard A. Wilkes
|
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- Tatsuya Yatagawa
|
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- Ryogo Yoshimura
|
|
- Lukas Zanner
|
|
- Andrey Zholos
|
|
- Aihui Zhu
|
|
- Santi Zupancic
|
|
- Jonas Ådahl
|
|
- Lasse Öörni
|
|
- Leonard König
|
|
- 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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