Added GLFW sources to raylib

Compiling GLFW library with raylib avoids external dependencies, this
way we solve version problems in some platforms

1 files changed, 435 insertions, 0 deletions

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+# GLFW
+
+[![Build status](https://travis-ci.org/glfw/glfw.svg?branch=master)](https://travis-ci.org/glfw/glfw)
+[![Build status](https://ci.appveyor.com/api/projects/status/0kf0ct9831i5l6sp/branch/master?svg=true)](https://ci.appveyor.com/project/elmindreda/glfw)
+[![Coverity Scan](https://scan.coverity.com/projects/4884/badge.svg)](https://scan.coverity.com/projects/glfw-glfw)
+
+## Introduction
+
+GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan
+application development.  It provides a simple, platform-independent API for
+creating windows, contexts and surfaces, reading input, handling events, etc.
+
+GLFW natively supports Windows, macOS and Linux and other Unix-like systems.
+Experimental implementations for the Wayland protocol and the Mir display server
+are available but not yet officially supported.                             
+
+GLFW is licensed under the [zlib/libpng
+license](http://www.glfw.org/license.html).
+
+The latest stable release is version 3.2.1.
+
+See the [downloads](http://www.glfw.org/download.html) page for details and
+files, or fetch the `latest` branch, which always points to the latest stable
+release.  Each release starting with 3.0 also has a corresponding [annotated
+tag](https://github.com/glfw/glfw/releases) with source and binary archives.
+The [version history](http://www.glfw.org/changelog.html) lists all user-visible
+changes for every release.
+
+This is a development branch for version 3.3, which is _not yet described_.
+Pre-release documentation is available [here](http://www.glfw.org/docs/3.3/).
+
+The `master` branch is the stable integration branch and _should_ always compile
+and run on all supported platforms, although details of newly added features may
+change until they have been included in a release.  New features and many bug
+fixes live in [other branches](https://github.com/glfw/glfw/branches/all) until
+they are stable enough to merge.
+
+If you are new to GLFW, you may find the
+[tutorial](http://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful.  If
+you have used GLFW 2 in the past, there is a [transition
+guide](http://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
+3 API.
+
+
+## Compiling GLFW
+
+GLFW itself requires only the headers and libraries for your window system.  It
+does not need the headers for any context creation API (WGL, GLX, EGL, NSGL,
+OSMesa) or rendering API (OpenGL, OpenGL ES, Vulkan) to enable support for them.
+
+GLFW supports compilation on Windows with Visual C++ 2010 and later, MinGW and
+MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC
+and Clang.  It will likely compile in other environments as well, but this is
+not regularly tested.
+
+There are [pre-compiled Windows binaries](http://www.glfw.org/download.html)
+available for all supported compilers.
+
+See the [compilation guide](http://www.glfw.org/docs/latest/compile.html) for
+more information about how to compile GLFW yourself.
+
+
+## Using GLFW
+
+See the [documentation](http://www.glfw.org/docs/latest/) for tutorials, guides
+and the API reference.
+
+
+## Contributing to GLFW
+
+See the [contribution
+guide](https://github.com/glfw/glfw/blob/master/.github/CONTRIBUTING.md) for
+more information.
+
+
+## System requirements
+
+GLFW supports Windows XP and later and macOS 10.7 and later.  Linux and other
+Unix-like systems running the X Window System are supported even without
+a desktop environment or modern extensions, although some features require
+a running window or clipboard manager.  The OSMesa backend requires Mesa 6.3.
+
+See the [compatibility guide](http://www.glfw.org/docs/latest/compat.html)
+in the documentation for more information.
+
+
+## Dependencies
+
+GLFW itself depends only on the headers and libraries for your window system.
+
+The (experimental) Wayland backend also depends on the `extra-cmake-modules`
+package, which is used to generated Wayland protocol headers.
+
+The examples and test programs depend on a number of tiny libraries.  These are
+located in the `deps/` directory.
+
+ - [getopt\_port](https://github.com/kimgr/getopt_port/) for examples
+   with command-line options
+ - [TinyCThread](https://github.com/tinycthread/tinycthread) for threaded
+   examples
+ - An OpenGL 3.2 core loader generated by
+   [glad](https://github.com/Dav1dde/glad) for examples using modern OpenGL
+ - [linmath.h](https://github.com/datenwolf/linmath.h) for linear algebra in
+   examples
+ - [Nuklear](https://github.com/vurtun/nuklear) for test and example UI
+ - [stb\_image\_write](https://github.com/nothings/stb) for writing images to disk
+ - [Vulkan headers](https://www.khronos.org/registry/vulkan/) for Vulkan tests
+
+The Vulkan example additionally requires the Vulkan SDK to be installed, or it
+will not be included in the build.  On macOS you need to provide the path to the
+MoltenVK SDK manually as it has no standard installation location.
+
+The documentation is generated with [Doxygen](http://doxygen.org/) if CMake can
+find that tool.
+
+
+## Reporting bugs
+
+Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).
+Please check the [contribution
+guide](https://github.com/glfw/glfw/blob/master/.github/CONTRIBUTING.md) for
+information on what to include when reporting a bug.
+
+
+## Changelog
+
+- Added `glfwGetError` function for querying the last error code and its
+  description (#970)
+- Added `glfwUpdateGamepadMappings` function for importing gamepad mappings in
+  SDL\_GameControllerDB format (#900)
+- Added `glfwJoystickIsGamepad` function for querying whether a joystick has
+  a gamepad mapping (#900)
+- Added `glfwGetJoystickGUID` function for querying the SDL compatible GUID of
+  a joystick (#900)
+- Added `glfwGetGamepadName` function for querying the name provided by the
+  gamepad mapping (#900)
+- Added `glfwGetGamepadState` function, `GLFW_GAMEPAD_*` and `GLFWgamepadstate`
+  for retrieving gamepad input state (#900)
+- Added `glfwGetWindowContentScale` and `glfwGetMonitorContentScale` for
+  DPI-aware rendering (#235,#439,#677,#845,#898)
+- Added `glfwRequestWindowAttention` function for requesting attention from the
+  user (#732,#988)
+- Added `glfwGetKeyScancode` function that allows retrieving platform dependent
+  scancodes for keys (#830)
+- Added `glfwSetWindowMaximizeCallback` and `GLFWwindowmaximizefun` for
+  receiving window maximization events (#778)
+- Added `glfwSetWindowAttrib` function for changing window attributes (#537)
+- Added `glfwGetJoystickHats` function for querying joystick hats
+  (#889,#906,#934)
+- Added `glfwInitHint` and `glfwInitHintString` for setting initialization hints
+- Added `glfwGetX11SelectionString` and `glfwSetX11SelectionString`
+  functions for accessing X11 primary selection (#894,#1056)
+- Added headless [OSMesa](http://mesa3d.org/osmesa.html) backend (#850)
+- Added definition of `GLAPIENTRY` to public header
+- Added `GLFW_TRANSPARENT` window hint for enabling window framebuffer
+  transparency (#197,#663,#715,#723,#1078)
+- Added `GLFW_CENTER_CURSOR` window hint for controlling cursor centering
+  (#749,#842)
+- Added `GLFW_JOYSTICK_HAT_BUTTONS` init hint (#889)
+- Added macOS specific `GLFW_COCOA_RETINA_FRAMEBUFFER` window hint
+- Added macOS specific `GLFW_COCOA_FRAME_AUTOSAVE` window hint (#195)
+- Added macOS specific `GLFW_COCOA_GRAPHICS_SWITCHING` window hint (#377,#935)
+- Added macOS specific `GLFW_COCOA_CHDIR_RESOURCES` init hint
+- Added macOS specific `GLFW_COCOA_MENUBAR` init hint
+- Added X11 specific `GLFW_X11_WM_CLASS_NAME` and `GLFW_X11_WM_CLASS_CLASS` init
+  hints (#893)
+- Added `GLFW_INCLUDE_ES32` for including the OpenGL ES 3.2 header
+- Added `GLFW_OSMESA_CONTEXT_API` for creating OpenGL contexts with
+  [OSMesa](https://www.mesa3d.org/osmesa.html) (#281)
+- Added `GenerateMappings.cmake` script for updating gamepad mappings
+- Removed `GLFW_USE_RETINA` compile-time option
+- Removed `GLFW_USE_CHDIR` compile-time option
+- Removed `GLFW_USE_MENUBAR` compile-time option
+- Bugfix: Calling `glfwMaximizeWindow` on a full screen window was not ignored
+- Bugfix: `GLFW_INCLUDE_VULKAN` could not be combined with the corresponding
+          OpenGL and OpenGL ES header macros
+- Bugfix: `glfwGetInstanceProcAddress` returned `NULL` for
+          `vkGetInstanceProcAddr` when `_GLFW_VULKAN_STATIC` was enabled
+- Bugfix: Invalid library paths were used in test and example CMake files (#930)
+- Bugfix: The scancode for synthetic key release events was always zero
+- Bugfix: The generated Doxyfile did not handle paths with spaces (#1081)
+- [Win32] Added system error strings to relevant GLFW error descriptions (#733)
+- [Win32] Moved to `WM_INPUT` for disabled cursor mode motion input (#125)
+- [Win32] Removed XInput circular deadzone from joystick axis data (#1045)
+- [Win32] Bugfix: Undecorated windows could not be iconified by the user (#861)
+- [Win32] Bugfix: Deadzone logic could underflow with some controllers (#910)
+- [Win32] Bugfix: Bitness test in `FindVulkan.cmake` was VS specific (#928)
+- [Win32] Bugfix: `glfwVulkanSupported` emitted an error on systems with
+                  a loader but no ICD (#916)
+- [Win32] Bugfix: Non-iconified full sreeen windows did not prevent screen
+                  blanking or password enabled screensavers (#851)
+- [Win32] Bugfix: Mouse capture logic lost secondary release messages (#954)
+- [Win32] Bugfix: The 32-bit Vulkan loader library static was not searched for
+- [Win32] Bugfix: Vulkan libraries have a new path as of SDK 1.0.42.0 (#956)
+- [Win32] Bugfix: Monitors with no display devices were not enumerated (#960)
+- [Win32] Bugfix: Monitor events were not emitted (#784)
+- [Win32] Bugfix: The Cygwin DLL was installed to the wrong directory (#1035)
+- [Win32] Bugfix: Normalization of axis data via XInput was incorrect (#1045)
+- [Win32] Bugfix: `glfw3native.h` would undefine a foreign `APIENTRY` (#1062)
+- [Win32] Bugfix: Disabled cursor mode prevented use of caption buttons
+                  (#650,#1071)
+- [Win32] Bugfix: Returned key names did not match other platforms (#943)
+- [Win32] Bugfix: Undecorated windows did not maximize to workarea (#899)
+- [X11] Moved to XI2 `XI_RawMotion` for disable cursor mode motion input (#125)
+- [X11] Replaced `_GLFW_HAS_XF86VM` compile-time option with dynamic loading
+- [X11] Bugfix: `glfwGetVideoMode` would segfault on Cygwin/X
+- [X11] Bugfix: Dynamic X11 library loading did not use full sonames (#941)
+- [X11] Bugfix: Window creation on 64-bit would read past top of stack (#951)
+- [X11] Bugfix: XDND support had multiple non-conformance issues (#968)
+- [X11] Bugfix: The RandR monitor path was disabled despite working RandR (#972)
+- [X11] Bugfix: IM-duplicated key events would leak at low polling rates (#747)
+- [X11] Bugfix: Gamma ramp setting via RandR did not validate ramp size
+- [X11] Bugfix: Key name string encoding depended on current locale (#981,#983)
+- [X11] Bugfix: Incremental reading of selections was not supported (#275)
+- [X11] Bugfix: Selection I/O reported but did not support `COMPOUND_TEXT`
+- [X11] Bugfix: Latin-1 text read from selections was not converted to UTF-8
+- [Linux] Moved to evdev for joystick input (#906,#1005)
+- [Linux] Bugfix: Event processing did not detect joystick disconnection (#932)
+- [Linux] Bugfix: The joystick device path could be truncated (#1025)
+- [Linux] Bugfix: `glfwInit` would fail if inotify creation failed (#833)
+- [Linux] Bugfix: `strdup` was used without any required feature macro (#1055)
+- [Cocoa] Added support for Vulkan window surface creation via
+          [MoltenVK](https://moltengl.com/moltenvk/) (#870)
+- [Cocoa] Added support for loading a `MainMenu.nib` when available
+- [Cocoa] Bugfix: Disabling window aspect ratio would assert (#852)
+- [Cocoa] Bugfix: Window creation failed to set first responder (#876,#883)
+- [Cocoa] Bugfix: Removed use of deprecated `CGDisplayIOServicePort` function
+                  (#165,#192,#508,#511)
+- [Cocoa] Bugfix: Disabled use of deprecated `CGDisplayModeCopyPixelEncoding`
+                  function on macOS 10.12+
+- [Cocoa] Bugfix: Running in AppSandbox would emit warnings (#816,#882)
+- [Cocoa] Bugfix: Windows created after the first were not cascaded (#195)
+- [Cocoa] Bugfix: Leaving video mode with `glfwSetWindowMonitor` would set
+                  incorrect position and size (#748)
+- [Cocoa] Bugfix: Iconified full screen windows could not be restored (#848)
+- [Cocoa] Bugfix: Value range was ignored for joystick hats and buttons (#888)
+- [Cocoa] Bugfix: Full screen framebuffer was incorrectly sized for some video
+                  modes (#682)
+- [Cocoa] Bugfix: A string object for IME was updated non-idiomatically (#1050)
+- [Cocoa] Bugfix: A hidden or disabled cursor would become visible when a user
+                  notification was shown (#971,#1028)
+- [Cocoa] Bugfix: Some characters did not repeat due to Press and Hold (#1010)
+- [Cocoa] Bugfix: Window title was lost when full screen or undecorated (#1082)
+- [WGL] Added support for `WGL_EXT_colorspace` for OpenGL ES contexts
+- [WGL] Added support for `WGL_ARB_create_context_no_error`
+- [GLX] Added support for `GLX_ARB_create_context_no_error`
+- [GLX] Bugfix: Context creation could segfault if no GLXFBConfigs were
+                available (#1040)
+- [EGL] Added support for `EGL_KHR_get_all_proc_addresses` (#871)
+- [EGL] Added support for `EGL_KHR_context_flush_control`
+- [EGL] Bugfix: The test for `EGL_RGB_BUFFER` was invalid
+
+
+## Contact
+
+On [glfw.org](http://www.glfw.org/) 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
+[forum](http://discourse.glfw.org/), and the `#glfw` IRC channel 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 the
+[issue tracker](https://github.com/glfw/glfw/issues) on GitHub.
+
+Finally, if you're interested in helping out with the development of GLFW or
+porting it to your favorite platform, join us on the forum, GitHub or IRC.
+
+
+## Acknowledgements
+
+GLFW exists because people around the world donated their time and lent their
+skills.
+
+ - Bobyshev Alexander
+ - Matt Arsenault
+ - David Avedissian
+ - Keith Bauer
+ - John Bartholomew
+ - Niklas Behrens
+ - Niklas Bergström
+ - Denis Bernard
+ - Doug Binks
+ - blanco
+ - Kyle Brenneman
+ - Rok Breulj
+ - Martin Capitanio
+ - David Carlier
+ - Arturo Castro
+ - Chi-kwan Chan
+ - Ian Clarkson
+ - Michał Cichoń
+ - Lambert Clara
+ - Yaron Cohen-Tal
+ - Omar Cornut
+ - Andrew Corrigan
+ - Bailey Cosier
+ - Noel Cower
+ - Jason Daly
+ - Jarrod Davis
+ - Olivier Delannoy
+ - Paul R. Deppe
+ - Michael Dickens
+ - Роман Донченко
+ - Mario Dorn
+ - Wolfgang Draxinger
+ - Jonathan Dummer
+ - Ralph Eastwood
+ - Fredrik Ehnbom
+ - Robin Eklind
+ - Siavash Eliasi
+ - Felipe Ferreira
+ - Michael Fogleman
+ - Gerald Franz
+ - Mário Freitas
+ - GeO4d
+ - Marcus Geelnard
+ - Eloi Marín Gratacós
+ - Stefan Gustavson
+ - Jonathan Hale
+ - Sylvain Hellegouarch
+ - Matthew Henry
+ - heromyth
+ - Lucas Hinderberger
+ - Paul Holden
+ - Warren Hu
+ - IntellectualKitty
+ - Aaron Jacobs
+ - Erik S. V. Jansson
+ - Toni Jovanoski
+ - Arseny Kapoulkine
+ - Cem Karan
+ - Osman Keskin
+ - Josh Kilmer
+ - Cameron King
+ - Peter Knut
+ - Christoph Kubisch
+ - Yuri Kunde Schlesner
+ - Konstantin Käfer
+ - Eric Larson
+ - Robin Leffmann
+ - Glenn Lewis
+ - Shane Liesegang
+ - Eyal Lotem
+ - Tristam MacDonald
+ - Hans Mackowiak
+ - Дмитри Малышев
+ - Zbigniew Mandziejewicz
+ - Célestin Marot
+ - Kyle McDonald
+ - David Medlock
+ - Bryce Mehring
+ - Jonathan Mercier
+ - Marcel Metz
+ - Liam Middlebrook
+ - Jonathan Miller
+ - Kenneth Miller
+ - Bruce Mitchener
+ - Jack Moffitt
+ - Jeff Molofee
+ - Pierre Morel
+ - Jon Morton
+ - Pierre Moulon
+ - Martins Mozeiko
+ - Julian Møller
+ - ndogxj
+ - Kristian Nielsen
+ - Kamil Nowakowski
+ - Denis Ovod
+ - Ozzy
+ - Andri Pálsson
+ - Peoro
+ - Braden Pellett
+ - Christopher Pelloux
+ - Arturo J. Pérez
+ - Anthony Pesch
+ - Orson Peters
+ - Emmanuel Gil Peyrot
+ - Cyril Pichard
+ - Keith Pitt
+ - Stanislav Podgorskiy
+ - Alexandre Pretyman
+ - Philip Rideout
+ - Eddie Ringle
+ - Jorge Rodriguez
+ - Ed Ropple
+ - Aleksey Rybalkin
+ - Riku Salminen
+ - Brandon Schaefer
+ - Sebastian Schuberth
+ - Christian Sdunek
+ - Matt Sealey
+ - Steve Sexton
+ - Arkady Shapkin
+ - Yoshiki Shibukawa
+ - Dmitri Shuralyov
+ - Daniel Skorupski
+ - Bradley Smith
+ - Patrick Snape
+ - Erlend Sogge Heggen
+ - Julian Squires
+ - Johannes Stein
+ - Pontus Stenetorp
+ - Michael Stocker
+ - Justin Stoecker
+ - Elviss Strazdins
+ - Paul Sultana
+ - Nathan Sweet
+ - TTK-Bandit
+ - Sergey Tikhomirov
+ - Arthur Tombs
+ - Ioannis Tsakpinis
+ - Samuli Tuomola
+ - Matthew Turner
+ - urraka
+ - Elias Vanderstuyft
+ - Stef Velzel
+ - Jari Vetoniemi
+ - Ricardo Vieira
+ - Nicholas Vitovitch
+ - Simon Voordouw
+ - Torsten Walluhn
+ - Patrick Walton
+ - Xo Wang
+ - Jay Weisskopf
+ - Frank Wille
+ - Ryogo Yoshimura
+ - Andrey Zholos
+ - Santi Zupancic
+ - Jonas Ådahl
+ - Lasse Öörni
+ - All the unmentioned and anonymous contributors in the GLFW community, for bug
+   reports, patches, feedback, testing and encouragement
+