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Replaced readme.html with README.md.
Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc.
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Camilla Berglund
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# GLFW 3.0
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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 brings a new API with many new features such as multiple windows
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and contexts, multi-monitor support, clipboard text support, an error
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description callback, gamma ramp control, layout-independent keyboard input and
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UTF-8 for all strings.
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Certain features like the threading and image loading functions from GLFW 2.x
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have been [removed](http://wiki.glfw.org/wiki/Rationale_for_removing).
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## Compiling GLFW
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To compile GLFW and the accompanying example programs, you will need the
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[CMake](http://www.cmake.org/) build system.
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### CMake options
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There are a number of CMake build options for GLFW, although not all are
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available on all supported platforms.
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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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#### Mac 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 of the
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Visual C++ runtime library.
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#### EGL specific options
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`GLFW_USE_EGL` determines whether to use EGL as the context creation API. Note
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that EGL is not yet provided on all supported 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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There are two aspects to using GLFW:
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* Using the GLFW API
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* Compiling and linking programs using the GLFW library
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The first point is covered in the reference manual and user guide, and we
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suggest that you read at least the user guide, since it's a good introduction to
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the GLFW API.
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Designing and compiling programs that use GLFW is not very difficult.
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A few rules for successfully designing GLFW-based programs are presented
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in the following sections.
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### Include the GLFW header file
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In the files of your program where you use OpenGL or GLFW, you should include
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the GLFW 3 header file, i.e.:
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#include <GL/glfw3.h>
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This defines all the constants, types and function prototypes of the GLFW API.
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It also includes the chosen client API header files (by default OpenGL), and
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defines all the constants and types necessary for those headers to work on that
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platform.
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For example, under Windows you are normally required to include `windows.h`
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before including `GL/gl.h`. This would make your source file tied to Windows
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and pollute your code's namespace with the whole Win32 API.
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Instead, the GLFW header takes care of this for you, not by including
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`windows.h`, but rather by itself duplicating only the necessary parts of it.
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It does this only where needed, so if `windows.h` *is* included, the GLFW header
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does not try to redefine those symbols.
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In other words:
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* Do *not* include the OpenGL headers yourself, as GLFW does this for you
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* Do *not* include `windows.h` or other platform-specific headers unless you
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plan on using those APIs directly
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* If you *do* need to include such headers, do it *before* including
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the GLFW and it will detect this
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If you are using an OpenGL extension loading library such as
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[GLEW](http://glew.sourceforge.net/), the GLEW header should also be included
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*before* the GLFW one. The GLEW header defines macros that disable any OpenGL
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header that the GLFW header includes and GLEW will work as expected.
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### Link with the right libraries
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#### Windows static library
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If you link with the static version of GLFW, it is also necessary to link with
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some system libraries that GLFW uses.
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When linking a program under Windows that uses the static version of GLFW, you
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must link with `opengl32`. If you are using GLU, you must also link with
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`glu32`.
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#### Windows DLL
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When compiling a program that uses the DLL version of GLFW, you need to define
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the `GLFW_DLL` macro *before* any inclusion of the GLFW header. This can be
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done either with a compiler switch or by defining it in your source code.
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When linking a program under Windows that uses the DLL version of GLFW,
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the only library you need to link with for GLFW to work is `glfwdll`.
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You will still have to link against `opengl32` if your program uses OpenGL, and
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`glu32` if it uses GLU.
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#### Unix library
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GLFW supports [pkg-config](http://www.freedesktop.org/wiki/Software/pkg-config/).
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A `glfw3.pc` file is generated when the library is built and installed along
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with it. You can use it without installation using the `PKG_CONFIG_PATH`
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environment variable. See the documentation for pkg-config for more details.
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A typical compile and link command-line when using the static may look like this:
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cc `pkg-config --cflags glfw3` -o myprog myprog.c `pkg-config --static --libs glfw3`
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If you are using the shared library, simply omit the `--static` flag.
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If you are using GLU, you should also add `-lGLU` to your link flags.
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#### Mac OS X static library
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GLFW on Mac OS X uses the Cocoa, OpenGL and IOKit frameworks.
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If you are using Xcode, you can simply add the GLFW library and these frameworks
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as dependencies.
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If you are building from the
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command-line, it is recommended that you use pkg-config
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GLFW supports [pkg-config](http://www.freedesktop.org/wiki/Software/pkg-config/).
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A `glfw3.pc` file is generated when the library is built and installed along
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with it. You can use it without installation using the `PKG_CONFIG_PATH`
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environment variable. See the documentation for pkg-config for more details.
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You can find pkg-config in most package systems such as
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[Fink](http://www.finkproject.org/) and [MacPorts](http://www.macports.org/), so
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if you have one of them installed, simply install pkg-config. Once you have
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pkg-config available, the command-line for compiling and linking your
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program is:
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cc `pkg-config --cflags glfw3` -o myprog myprog.c `pkg-config --libs glfw3`
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If you do not wish to use pkg-config, you need to add the required frameworks
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and libraries to your command-line using the `-l` and `-framework` switches,
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i.e.:
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cc -o myprog myprog.c -lglfw -framework Cocoa -framework OpenGL -framework IOKit
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Note that you do not add the `.framework` extension to a framework when adding
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it from the command-line.
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The OpenGL framework contains both the OpenGL and GLU APIs, so there is no need
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to add additional libraries or frameworks when using GLU. Also note that even
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though your machine may have `libGL`-style OpenGL libraries, they are for use
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with the X Window System and will *not* work with the Mac OS X native version of
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GLFW.
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## Changes for version 3.0
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* Added `GLFWmonitor` and updated monitor-related functions to take a monitor
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handle
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* Added `glfwGetMonitors` and `glfwGetPrimaryMonitor` for enumerating available
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monitors
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* Added `glfwGetMonitorParam` and `glfwGetMonitorName` for retrieving monitor
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properties
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* Added `glfwSetMonitorCallback` and `GLFWmonitorfun` for notification of
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changes in the set of available monitors
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* Added `GLFWwindow` and updated window-related functions and callbacks to take
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a window handle
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* Added `glfwDefaultWindowHints` for resetting all window hints to their
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default values
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* Added `glfwMakeContextCurrent` for making the context of the specified window
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current
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* Added `glfwSetErrorCallback`, `GLFWerrorfun` and error type tokens for
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receiving error notifications
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* Added `glfwSetWindowUserPointer` and `glfwGetWindowUserPointer` for
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per-window user pointers
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* Added `glfwGetVersionString` for determining which code paths were enabled at
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compile time
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* Added `glfwGetWindowMonitor` for querying the monitor, if any, of the
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specified window
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* Added `glfwSetWindowPosCallback` and `GLFWwindowposfun` for receiving window
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position events
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* Added `glfwSetWindowFocusCallback` and `GLFWwindowfocusfun` for receiving
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window focus events
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* Added `glfwSetWindowIconifyCallback` and `GLFWwindowiconifyfun` for receiving
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window iconification events
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* Added `glfwGetClipboardString` and `glfwSetClipboardString` for interacting
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with the system clipboard
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* Added `glfwGetJoystickName` for retrieving the name of a joystick
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* Added `glfwGetCurrentContext` for retrieving the window whose OpenGL context
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is current
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* Added `GLFW_SRGB_CAPABLE` for requesting sRGB capable framebuffers
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* Added `GLFW_CLIENT_API` and its values `GLFW_OPENGL_API` and
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`GLFW_OPENGL_ES_API` for selecting client API
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* Added `GLFW_CONTEXT_ROBUSTNESS` and values `GLFW_NO_ROBUSTNESS`,
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`GLFW_NO_RESET_NOTIFICATION` and `GLFW_LOSE_CONTEXT_ON_RESET` for
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`GL_ARB_robustness` support
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* Added `GLFW_OPENGL_REVISION` to make up for removal of `glfwGetGLVersion`
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* Added `GLFW_INCLUDE_GLCOREARB` macro for including `GL/glcorearb.h` instead of
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`GL/gl.h`
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* Added `GLFW_INCLUDE_ES1` macro for telling the GLFW header to use `GLES/gl.h`
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instead of `GL/gl.h`
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* Added `GLFW_INCLUDE_ES2` macro for telling the GLFW header to use
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`GLES2/gl2.h` instead of `GL/gl.h`
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* Added `GLFW_VISIBLE` window hint and parameter for controlling and polling
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window visibility
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* Added `GLFW_POSITION_X` and `GLFW_POSITION_Y` window hints and parameter for
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controlling and polling window position
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* Added `windows` simple multi-window test program
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* Added `sharing` simple OpenGL object sharing test program
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* Added `modes` video mode enumeration and setting test program
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* Added `threads` simple multi-threaded rendering test program
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* Added `glfw3native.h` header and platform-specific functions for explicit
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access to native display, window and context handles
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* Added `glfwSetGamma`, `glfwSetGammaRamp` and `glfwGetGammaRamp` functions and
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`GLFWgammaramp` type for monitor gamma ramp control
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* Added window parameter to `glfwSwapBuffers`
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* Changed buffer bit depth parameters of `glfwOpenWindow` to window hints
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* Changed `glfwOpenWindow` and `glfwSetWindowTitle` to use UTF-8 encoded
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strings
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* Changed `glfwGetProcAddress` to return a (generic) function pointer
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* Changed `glfwGetVideoModes` to return a dynamic, unlimited number of video
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modes for the specified monitor
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* Renamed `glfw.h` to `glfw3.h` to avoid conflicts with 2.x series
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* Renamed `glfwOpenWindowHint` to `glfwWindowHint`
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* Renamed `GLFW_ACTIVE` to `GLFW_FOCUSED`
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* Renamed `GLFW_FSAA_SAMPLES` to `GLFW_SAMPLES`
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* Renamed `GLFW_WINDOW_NO_RESIZE` to `GLFW_RESIZABLE`
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* Renamed `GLFW_BUILD_DLL` to `_GLFW_BUILD_DLL`
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* Renamed `version` test to `glfwinfo`
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* Renamed `GLFW_NO_GLU` to `GLFW_INCLUDE_GLU` and made it disabled by default
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* Renamed `glfwGetJoystickPos` to `glfwGetJoystickAxes` to match
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`glfwGetJoystickButtons`
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* Renamed mouse position functions to cursor position equivalents
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* Replaced `glfwOpenWindow` and `glfwCloseWindow` with `glfwCreateWindow` and
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`glfwDestroyWindow`
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* Replaced `glfwGetDesktopMode` width `glfwGetVideoMode`
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* Replaced ad hoc build system with CMake
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* Replaced layout-dependent key codes with single, platform-independent set
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based on US layout
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* Replaced mouse wheel interface with two-dimensional, floating point scrolling
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interface
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* Replaced `glfwEnable` and `glfwDisable` with `glfwGetInputMode` and
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`glfwSetInputMode`
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* Replaced `joystick` test with graphical version
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* Replaced automatic closing of windows with `GLFW_SHOULD_CLOSE` window
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parameter
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* Removed the `GLFW_KEY_REPEAT` input option
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* Removed event auto-polling and the `GLFW_AUTO_POLL_EVENTS` window enable
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* Removed the Win32 port .def files
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* Removed the entire threading API
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* Removed the entire image loading API
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* Removed deprecated Carbon port
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* Removed registering `glfwTerminate` with `atexit`
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* Removed `glfwSleep` function
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* Removed `glfwGetNumberOfProcessors` function
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* Removed `glfwGetGLVersion` function
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* Removed `GLFW_OPENED` window parameter
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* Removed `GLFW_WINDOW` and `GLFW_FULLSCREEN`
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* Removed nonsensical key actions for Unicode character input
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* Removed `GLFWCALL` and `GLFWAPIENTRY` macros for stdcall calling convention
|
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* Removed `GLFW_ACCELERATED` window parameter
|
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* Removed default framebuffer attributes from `glfwGetWindowParam`
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* Bugfix: The default OpenGL version in the `glfwinfo` test was set to 1.1
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* Bugfix: The OpenGL profile and forward-compatibility window parameters were
|
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not saved after context creation
|
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* Bugfix: The FSAA test did not check for the availability of
|
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`GL_ARB_multisample`
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* Bugfix: Cursor centering upon leaving captured cursor mode was reported
|
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before the mode was changed to non-captured
|
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* [Cocoa] Added support for OpenGL 3.2 core profile in 10.7 Lion and above
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* [Cocoa] Added support for joysticks
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* [Cocoa] Postponed menu creation to first window creation
|
||||
* [Cocoa] Replaced `NSDate` time source with `mach_absolute_time`
|
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* [Cocoa] Replaced all deprecated CoreGraphics calls with non-deprecated
|
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counterparts
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* [Cocoa] Bugfix: The `NSOpenGLPFAFullScreen` pixel format attribute caused
|
||||
creation to fail on some machines
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* [Cocoa] Bugfix: `glfwOpenWindow` did not properly enforce the
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forward-compatible and context profile hints
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* [Cocoa] Bugfix: The loop condition for saving video modes used the wrong
|
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index variable
|
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* [Cocoa] Bugfix: The OpenGL framework was not retrieved, making
|
||||
glfwGetProcAddress crash
|
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* [Cocoa] Bugfix: `glfwInit` changed the current directory for unbundled
|
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executables
|
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* [Cocoa] Bugfix: The `GLFW_WINDOW_NO_RESIZE` window parameter was always zero
|
||||
* [Cocoa] Bugfix: The cursor position incorrectly rounded during conversion
|
||||
* [Cocoa] Bugfix: Cursor positioning led to nonsensical results for fullscreen
|
||||
windows
|
||||
* [Cocoa] Bugfix: The GLFW window was flagged as restorable
|
||||
* [X11] Added support for the `GLX_EXT_swap_control` and
|
||||
`GLX_MESA_swap_control` extensions as alternatives to
|
||||
`GLX_SGI_swap_control`
|
||||
* [X11] Added the POSIX `CLOCK_MONOTONIC` time source as the preferred method
|
||||
* [X11] Added dependency on libm, where present
|
||||
* [X11] Added support for the `_NET_WM_NAME` and `_NET_WM_ICON_NAME` EWMH
|
||||
window properties
|
||||
* [X11] Made client-side RandR and Xf86VidMode extensions required
|
||||
* [X11] Bugfix: Some window properties required by the ICCCM were not set
|
||||
* [X11] Bugfix: Calling `glXCreateContextAttribsARB` with an unavailable OpenGL
|
||||
version caused the application to terminate with a `BadMatch`
|
||||
Xlib error
|
||||
* [X11] Bugfix: A synchronization point necessary for jitter-free locked cursor
|
||||
mode was incorrectly removed
|
||||
* [X11] Bugfix: The window size hints were not updated when calling
|
||||
`glfwSetWindowSize` on a non-resizable window
|
||||
* [Win32] Changed port to use Unicode mode only
|
||||
* [Win32] Removed explicit support for versions of Windows older than Windows
|
||||
XP
|
||||
* [Win32] Bugfix: Window activation and iconification did not work as expected
|
||||
* [Win32] Bugfix: Software rasterizer pixel formats were not discarded by the
|
||||
WGL_ARB_pixel_format code path
|
||||
* [Win32] Bugfix: The array for WGL context attributes was too small and could
|
||||
overflow
|
||||
* [Win32] Bugfix: Alt+F4 hot key was not translated into `WM_CLOSE`
|
||||
* [Win32] Bugfix: The `GLFW_WINDOW_NO_RESIZE` window parameter was always zero
|
||||
* [Win32] Bugfix: A test was missing for whether all available pixel formats
|
||||
had been disqualified
|
||||
|
||||
|
||||
## Contact
|
||||
|
||||
The official website for GLFW is [glfw.org](http://www.glfw.org/). There you
|
||||
can find the latest version of GLFW, as well as news, documentation and other
|
||||
information about the project.
|
||||
|
||||
If you have questions related to the use of GLFW, we have a
|
||||
[support forum](https://sourceforge.net/p/glfw/discussion/247562/), and the IRC
|
||||
channel `#glfw` on [Freenode](http://freenode.net/).
|
||||
|
||||
If you have a bug to report, a patch to submit or a feature you'd like to
|
||||
request, please file it in one of the
|
||||
[issue trackers](https://sourceforge.net/p/glfw/_list/tickets) on SF.net.
|
||||
|
||||
Finally, if you're interested in helping out with the development of GLFW or
|
||||
porting it to your favorite platform, we have a
|
||||
[developer's mailing list](https://lists.stacken.kth.se/mailman/listinfo/glfw-dev),
|
||||
or you could join us on `#glfw`.
|
||||
|
||||
|
||||
## Acknowledgements
|
||||
|
||||
GLFW exists because people around the world donated their time and lent their
|
||||
skills.
|
||||
|
||||
* Bobyshev Alexander
|
||||
* artblanc
|
||||
* Keith Bauer
|
||||
* John Bartholomew
|
||||
* blanco
|
||||
* Lambert Clara
|
||||
* Jarrod Davis
|
||||
* Olivier Delannoy
|
||||
* Paul R. Deppe
|
||||
* Jonathan Dummer
|
||||
* Ralph Eastwood
|
||||
* Gerald Franz
|
||||
* GeO4d
|
||||
* Marcus Geelnard
|
||||
* Stefan Gustavson
|
||||
* Sylvain Hellegouarch
|
||||
* heromyth
|
||||
* Toni Jovanoski
|
||||
* Cameron King
|
||||
* Peter Knut
|
||||
* Robin Leffmann
|
||||
* Glenn Lewis
|
||||
* Shane Liesegang
|
||||
* Дмитри Малышев
|
||||
* Martins Mozeiko
|
||||
* Tristam MacDonald
|
||||
* Hans Mackowiak
|
||||
* David Medlock
|
||||
* Marcel Metz
|
||||
* Kenneth Miller
|
||||
* Jeff Molofee
|
||||
* Julian Møller
|
||||
* Ozzy at Orkysquad
|
||||
* Peoro
|
||||
* Arturo J. Pérez
|
||||
* Riku Salminen
|
||||
* Sebastian Schuberth
|
||||
* Matt Sealey
|
||||
* Steve Sexton
|
||||
* Dmitri Shuralyov
|
||||
* Daniel Skorupski
|
||||
* Bradley Smith
|
||||
* Julian Squires
|
||||
* Johannes Stein
|
||||
* TTK-Bandit
|
||||
* Sergey Tikhomirov
|
||||
* Samuli Tuomola
|
||||
* Torsten Walluhn
|
||||
* Frank Wille
|
||||
* yuriks
|
||||
* Santi Zupancic
|
||||
* Lasse Öörni
|
||||
* All the unmentioned and anonymous contributors in the GLFW community, for bug
|
||||
reports, patches, feedback, testing and encouragement
|
||||
|
||||
1017
readme.html
1017
readme.html
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Reference in New Issue
Block a user