Cleanup

Related to #786.

CMakeLists.txt

@@ -41,8 +41,9 @@ if (WIN32)
 endif()
 
 if (UNIX AND NOT APPLE)
-    option(GLFW_USE_WAYLAND "Use Wayland for window creation" OFF)
-    option(GLFW_USE_MIR     "Use Mir for window creation" OFF)
+    option(GLFW_USE_WAYLAND   "Use Wayland for window creation" OFF)
+    option(GLFW_USE_MIR       "Use Mir for window creation" OFF)
+    option(GLFW_USE_EGLDEVICE "Use EGLDevice for window creation" OFF)
 endif()
 
 if (MSVC)
@@ -163,6 +164,9 @@ elseif (GLFW_USE_MIR)
 elseif (GLFW_USE_OSMESA)
     set(_GLFW_OSMESA 1)
     message(STATUS "Using OSMesa for headless context creation")
+elseif (GLFW_USE_EGLDEVICE)
+    set(_GLFW_EGLDEVICE 1)
+    message(STATUS "Using EGLDevice for window creation")
 elseif (WIN32)
     set(_GLFW_WIN32 1)
     message(STATUS "Using Win32 for window creation")
@@ -291,6 +295,23 @@ if (_GLFW_WAYLAND)
     list(APPEND glfw_LIBRARIES "${XKBCOMMON_LIBRARY}")
 endif()
 
+#--------------------------------------------------------------------
+# Use EGLDevice for window creation
+#--------------------------------------------------------------------
+if (_GLFW_EGLDEVICE)
+
+    find_path(DRM_INCLUDE_DIR NAMES drm.h PATH_SUFFIXES drm libdrm)
+    if (NOT DRM_INCLUDE_DIR)
+        message(FATAL_ERROR "The libdrm headers were not found")
+    endif()
+
+    list(APPEND glfw_INCLUDE_DIRS "${DRM_INCLUDE_DIR}")
+
+    list(APPEND glfw_LIBRARIES "-ldrm")
+    list(APPEND glfw_LIBRARIES "${CMAKE_THREAD_LIBS_INIT}")
+
+endif()
+
 #--------------------------------------------------------------------
 # Use Mir for window creation
 #--------------------------------------------------------------------

README.md

@@ -11,8 +11,9 @@ 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.                             
+Experimental implementations for the Wayland protocol, the Mir display server
+and direct rendering via EGLDevice are available but not yet officially
+supported.
 
 GLFW is licensed under the [zlib/libpng
 license](http://www.glfw.org/license.html).
@@ -45,8 +46,8 @@ guide](http://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
 ## 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) or
-rendering API (OpenGL, OpenGL ES, Vulkan) to enable support for them.
+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
@@ -91,6 +92,9 @@ 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 (experimental) EGLDevice backend also depends on the `libdrm-dev`
+development package.
+
 The examples and test programs depend on a number of tiny libraries.  These are
 located in the `deps/` directory.
 
@@ -205,6 +209,10 @@ information on what to include when reporting a bug.
 - [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] Added experimental support for direct rendering via EGLDevice (#786)
 - [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)
@@ -279,6 +287,7 @@ skills.
  - David Carlier
  - Arturo Castro
  - Chi-kwan Chan
+ - Kamal Chandra
  - Ian Clarkson
  - Michał Cichoń
  - Lambert Clara

docs/compile.dox

@@ -257,6 +257,7 @@ ramps and clipboard.  The options are:
  - @b _GLFW_WAYLAND to use the Wayland API (experimental and incomplete)
  - @b _GLFW_MIR to use the Mir API (experimental and incomplete)
  - @b _GLFW_OSMESA to use the OSMesa API (headless and non-interactive)
+ - @b _GLFW_EGLDEVICE to use the EGLDevice API (experimental and incomplete)
 
 If you are building GLFW as a shared library / dynamic library / DLL then you
 must also define @b _GLFW_BUILD_DLL.  Otherwise, you must not define it.

src/CMakeLists.txt

@@ -47,6 +47,12 @@ elseif (_GLFW_WAYLAND)
         PROTOCOL
         "${WAYLAND_PROTOCOLS_PKGDATADIR}/unstable/pointer-constraints/pointer-constraints-unstable-v1.xml"
         BASENAME pointer-constraints-unstable-v1)
+elseif(_GLFW_EGLDEVICE)
+    set(glfw_HEADERS ${common_HEADERS} egldevice_platform.h linux_joystick.h
+                     posix_time.h posix_thread.h xkb_unicode.h egl_context.h)
+    set(glfw_SOURCES ${common_SOURCES} egldevice_init.c egldevice_monitor.c egldevice_window.c
+                     linux_joystick.c posix_time.c posix_thread.c xkb_unicode.c
+                     egl_context.c)
 elseif (_GLFW_MIR)
     set(glfw_HEADERS ${common_HEADERS} mir_platform.h linux_joystick.h
                      posix_time.h posix_thread.h xkb_unicode.h egl_context.h
@@ -88,7 +94,7 @@ set_target_properties(glfw PROPERTIES
 
 target_compile_definitions(glfw PRIVATE
                            _GLFW_USE_CONFIG_H
-                           $<$<BOOL:${UNIX}>:_XOPEN_SOURCE=600>)
+                           $<$<BOOL:${UNIX}>:_POSIX_C_SOURCE=200809L>)
 target_include_directories(glfw PUBLIC
                            "$<BUILD_INTERFACE:${GLFW_SOURCE_DIR}/include>"
                            "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/include>")

src/cocoa_init.m

@@ -215,8 +215,9 @@ static GLFWbool updateUnicodeDataNS(void)
         return GLFW_FALSE;
     }
 
-    _glfw.ns.unicodeData = TISGetInputSourceProperty(_glfw.ns.inputSource,
-                                                     kTISPropertyUnicodeKeyLayoutData);
+    _glfw.ns.unicodeData =
+        TISGetInputSourceProperty(_glfw.ns.inputSource,
+                                  kTISPropertyUnicodeKeyLayoutData);
     if (!_glfw.ns.unicodeData)
     {
         _glfwInputError(GLFW_PLATFORM_ERROR,
@@ -232,7 +233,8 @@ static GLFWbool updateUnicodeDataNS(void)
 static GLFWbool initializeTIS(void)
 {
     // This works only because Cocoa has already loaded it properly
-    _glfw.ns.tis.bundle = CFBundleGetBundleWithIdentifier(CFSTR("com.apple.HIToolbox"));
+    _glfw.ns.tis.bundle =
+        CFBundleGetBundleWithIdentifier(CFSTR("com.apple.HIToolbox"));
     if (!_glfw.ns.tis.bundle)
     {
         _glfwInputError(GLFW_PLATFORM_ERROR,

src/cocoa_joystick.m

@@ -73,7 +73,9 @@ static long getElementValue(_GLFWjoystick* js, _GLFWjoyelementNS* element)
 
 // Comparison function for matching the SDL element order
 //
-static CFComparisonResult compareElements(const void* fp, const void* sp, void* user)
+static CFComparisonResult compareElements(const void* fp,
+                                          const void* sp,
+                                          void* user)
 {
     const _GLFWjoyelementNS* fe = fp;
     const _GLFWjoyelementNS* se = sp;
@@ -183,7 +185,8 @@ static void matchCallback(void* context,
 
     for (i = 0;  i < CFArrayGetCount(elements);  i++)
     {
-        IOHIDElementRef native = (IOHIDElementRef) CFArrayGetValueAtIndex(elements, i);
+        IOHIDElementRef native = (IOHIDElementRef)
+            CFArrayGetValueAtIndex(elements, i);
         if (CFGetTypeID(native) != IOHIDElementGetTypeID())
             continue;
 

src/cocoa_monitor.m

@@ -54,7 +54,8 @@ static char* getDisplayName(CGDirectDisplayID displayID)
 
     while ((service = IOIteratorNext(it)) != 0)
     {
-        info = IODisplayCreateInfoDictionary(service, kIODisplayOnlyPreferredName);
+        info = IODisplayCreateInfoDictionary(service,
+                                             kIODisplayOnlyPreferredName);
 
         CFNumberRef vendorIDRef =
             CFDictionaryGetValue(info, CFSTR(kDisplayVendorID));
@@ -185,7 +186,13 @@ static CGDisplayFadeReservationToken beginFadeReservation(void)
     CGDisplayFadeReservationToken token = kCGDisplayFadeReservationInvalidToken;
 
     if (CGAcquireDisplayFadeReservation(5, &token) == kCGErrorSuccess)
-        CGDisplayFade(token, 0.3, kCGDisplayBlendNormal, kCGDisplayBlendSolidColor, 0.0, 0.0, 0.0, TRUE);
+    {
+        CGDisplayFade(token, 0.3,
+                      kCGDisplayBlendNormal,
+                      kCGDisplayBlendSolidColor,
+                      0.0, 0.0, 0.0,
+                      TRUE);
+    }
 
     return token;
 }
@@ -196,7 +203,11 @@ static void endFadeReservation(CGDisplayFadeReservationToken token)
 {
     if (token != kCGDisplayFadeReservationInvalidToken)
     {
-        CGDisplayFade(token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
+        CGDisplayFade(token, 0.5,
+                      kCGDisplayBlendSolidColor,
+                      kCGDisplayBlendNormal,
+                      0.0, 0.0, 0.0,
+                      FALSE);
         CGReleaseDisplayFadeReservation(token);
     }
 }

src/egl_context.c

@@ -116,10 +116,18 @@ static GLFWbool chooseEGLConfig(const _GLFWctxconfig* ctxconfig,
         if (getEGLConfigAttrib(n, EGL_COLOR_BUFFER_TYPE) != EGL_RGB_BUFFER)
             continue;
 
+#if defined(_GLFW_EGLDEVICE)
+        // Only consider stream EGLConfigs
+        if (!(getEGLConfigAttrib(n, EGL_SURFACE_TYPE) & EGL_STREAM_BIT_KHR))
+            continue;
+
+#else
         // Only consider window EGLConfigs
         if (!(getEGLConfigAttrib(n, EGL_SURFACE_TYPE) & EGL_WINDOW_BIT))
             continue;
 
+#endif
+
 #if defined(_GLFW_X11)
         // Only consider EGLConfigs with associated Visuals
         if (!getEGLConfigAttrib(n, EGL_NATIVE_VISUAL_ID))
@@ -376,6 +384,9 @@ GLFWbool _glfwInitEGL(void)
         return GLFW_FALSE;
     }
 
+// For EGLDevice backend the display gets initialized
+//  in _glfwPlatformInit()
+#if !defined(_GLFW_EGLDEVICE)
     _glfw.egl.display = eglGetDisplay(_GLFW_EGL_NATIVE_DISPLAY);
     if (_glfw.egl.display == EGL_NO_DISPLAY)
     {
@@ -396,6 +407,7 @@ GLFWbool _glfwInitEGL(void)
         _glfwTerminateEGL();
         return GLFW_FALSE;
     }
+#endif
 
     _glfw.egl.KHR_create_context =
         extensionSupportedEGL("EGL_KHR_create_context");
@@ -581,6 +593,9 @@ GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
         setAttrib(EGL_NONE, EGL_NONE);
     }
 
+// The surface for EGLDevice backened is created in _glfwPlatformCreateWindow
+//
+#if !defined (_GLFW_EGLDEVICE)
     window->context.egl.surface =
         eglCreateWindowSurface(_glfw.egl.display,
                                config,
@@ -593,6 +608,7 @@ GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
                         getEGLErrorString(eglGetError()));
         return GLFW_FALSE;
     }
+#endif
 
     window->context.egl.config = config;
 

src/egl_context.h

@@ -47,6 +47,10 @@ typedef struct wl_egl_window* EGLNativeWindowType;
  #define EGLAPIENTRY
 typedef MirEGLNativeDisplayType EGLNativeDisplayType;
 typedef MirEGLNativeWindowType EGLNativeWindowType;
+#elif defined(_GLFW_EGLDEVICE)
+ #define EGLAPIENTRY
+typedef void* EGLNativeDisplayType;
+typedef int EGLNativeWindowType;
 #else
  #error "No supported EGL platform selected"
 #endif
@@ -84,6 +88,8 @@ typedef MirEGLNativeWindowType EGLNativeWindowType;
 #define EGL_OPENGL_ES_API 0x30a0
 #define EGL_OPENGL_API 0x30a2
 #define EGL_NONE 0x3038
+#define EGL_WIDTH 0x3057
+#define EGL_HEIGHT 0x3056
 #define EGL_EXTENSIONS 0x3055
 #define EGL_CONTEXT_CLIENT_VERSION 0x3098
 #define EGL_NATIVE_VISUAL_ID 0x302e
@@ -118,6 +124,7 @@ typedef void* EGLConfig;
 typedef void* EGLContext;
 typedef void* EGLDisplay;
 typedef void* EGLSurface;
+typedef intptr_t EGLAttrib;
 
 // EGL function pointer typedefs
 typedef EGLBoolean (EGLAPIENTRY * PFN_eglGetConfigAttrib)(EGLDisplay,EGLConfig,EGLint,EGLint*);

src/egldevice_init.c

@@ -0,0 +1,284 @@
+//========================================================================
+// GLFW 3.3 EGLDevice - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <linux/limits.h>
+
+static GLFWbool initializeExtensions(void)
+{
+    _glfw.egldevice.QueryDevicesEXT =
+        (PFNEGLQUERYDEVICESEXTPROC)
+            eglGetProcAddress("eglQueryDevicesEXT");
+   _glfw.egldevice.QueryDeviceStringEXT =
+        (PFNEGLQUERYDEVICESTRINGEXTPROC)
+            eglGetProcAddress("eglQueryDeviceStringEXT");
+    _glfw.egldevice.GetPlatformDisplayEXT =
+        (PFNEGLGETPLATFORMDISPLAYEXTPROC)
+            eglGetProcAddress("eglGetPlatformDisplayEXT");
+    _glfw.egldevice.GetOutputLayersEXT =
+        (PFNEGLGETOUTPUTLAYERSEXTPROC)
+            eglGetProcAddress("eglGetOutputLayersEXT");
+    _glfw.egldevice.CreateStreamKHR =
+        (PFNEGLCREATESTREAMKHRPROC)
+            eglGetProcAddress("eglCreateStreamKHR");
+    _glfw.egldevice.DestroyStreamKHR =
+        (PFNEGLDESTROYSTREAMKHRPROC)
+            eglGetProcAddress("eglDestroyStreamKHR");
+    _glfw.egldevice.StreamConsumerOutputEXT =
+        (PFNEGLSTREAMCONSUMEROUTPUTEXTPROC)
+            eglGetProcAddress("eglStreamConsumerOutputEXT");
+    _glfw.egldevice.CreateStreamProducerSurfaceKHR =
+        (PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC)
+            eglGetProcAddress("eglCreateStreamProducerSurfaceKHR");
+
+    if(!_glfw.egldevice.QueryDevicesEXT ||
+       !_glfw.egldevice.QueryDeviceStringEXT ||
+       !_glfw.egldevice.GetPlatformDisplayEXT ||
+       !_glfw.egldevice.GetOutputLayersEXT ||
+       !_glfw.egldevice.CreateStreamKHR ||
+       !_glfw.egldevice.DestroyStreamKHR ||
+       !_glfw.egldevice.StreamConsumerOutputEXT ||
+       !_glfw.egldevice.CreateStreamProducerSurfaceKHR)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Failed to find required EGL extension functions");
+        return GLFW_FALSE;
+    }
+    return GLFW_TRUE;
+}
+
+static EGLDeviceEXT getEGLDevice(void)
+{
+    int i, num_devs;
+    EGLDeviceEXT* egl_devs, eglDevice;
+    const char *clientExtensionString;
+
+    eglDevice = EGL_NO_DEVICE_EXT;
+    clientExtensionString = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+    if (!_glfwStringInExtensionString("EGL_EXT_device_base",
+                                      clientExtensionString) &&
+        (!_glfwStringInExtensionString("EGL_EXT_device_enumeration",
+                                       clientExtensionString) ||
+         !_glfwStringInExtensionString("EGL_EXT_device_query",
+                                       clientExtensionString)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: EGL_EXT_device base extensions not found");
+    }
+
+    if (!eglQueryDevicesEXT(0, NULL, &num_devs))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Falied to query EGLDevice");
+    }
+    if (num_devs < 1)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: No devices found");
+    }
+
+    egl_devs = calloc(sizeof(EGLDeviceEXT), num_devs);
+    if (egl_devs == NULL)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Unable to allocate memory for device storage");
+    }
+
+    // Select suitable device
+    if (!eglQueryDevicesEXT(num_devs, egl_devs, &num_devs))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Failed to query EGL devices");
+    }
+
+    for (i = 0; i <= num_devs; i++)
+    {
+        const char* deviceExtensionString;
+
+        deviceExtensionString = eglQueryDeviceStringEXT(egl_devs[i], EGL_EXTENSIONS);
+        if (_glfwStringInExtensionString("EGL_EXT_device_drm",
+                                         deviceExtensionString))
+        {
+            eglDevice = egl_devs[i];
+            break;
+        }
+    }
+
+    free(egl_devs);
+
+    if (eglDevice == EGL_NO_DEVICE_EXT)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Missing required extension EGL_EXT_device_drm");
+    }
+    return eglDevice;
+}
+
+static int getDRMFd(EGLDeviceEXT eglDevice)
+{
+    int drm_fd;
+    const char* drmName;
+
+    drmName = eglQueryDeviceStringEXT(eglDevice, EGL_DRM_DEVICE_FILE_EXT);
+    if (!drmName || (strnlen(drmName, PATH_MAX) == 0))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Couldn't obtain device file from 0x%p",
+                        (void*)(uintptr_t)eglDevice);
+    }
+
+    drm_fd = drmOpen(drmName, NULL);
+    if (drm_fd < 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Couldn't open device file '%s'", drmName);
+    }
+
+    return drm_fd;
+}
+
+static GLFWbool initEGLDisplay(EGLDeviceEXT egl_dev, int drm_fd)
+{
+    const char* displayExtensionString;
+    EGLint displayAttribs[] = {
+        EGL_DRM_MASTER_FD_EXT,
+        drm_fd,
+        EGL_NONE
+    };
+
+    _glfw.egl.display = eglGetPlatformDisplayEXT(EGL_PLATFORM_DEVICE_EXT,
+                                                 (void*)egl_dev,
+                                                 displayAttribs);
+    if (_glfw.egl.display == EGL_NO_DISPLAY)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Couldn't obtain EGLDisplay for device");
+        return GLFW_FALSE;
+    }
+
+    if (!eglInitialize(_glfw.egl.display, &_glfw.egl.major, &_glfw.egl.minor))
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: Failed to initialize EGL");
+        return GLFW_FALSE;
+    }
+
+    // Check for stream_consumer_egloutput + output_drm support
+    displayExtensionString = eglQueryString(_glfw.egl.display, EGL_EXTENSIONS);
+    if (!_glfwStringInExtensionString("EGL_EXT_output_base",
+                                      displayExtensionString))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Missing required extension EGL_EXT_output_base");
+        return GLFW_FALSE;
+    }
+
+    if (!_glfwStringInExtensionString("EGL_EXT_output_drm",
+                                      displayExtensionString))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Missing required extension EGL_EXT_output_drm");
+        return GLFW_FALSE;
+    }
+
+    if (!_glfwStringInExtensionString("EGL_KHR_stream",
+                                      displayExtensionString))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Missing required extension EGL_KHR_stream");
+        return GLFW_FALSE;
+    }
+
+    if (!_glfwStringInExtensionString("EGL_KHR_stream_producer_eglsurface",
+                                      displayExtensionString))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Missing required extension EGL_KHR_stream_producer_eglsurface");
+        return GLFW_FALSE;
+    }
+    if (!_glfwStringInExtensionString("EGL_EXT_stream_consumer_egloutput",
+                                      displayExtensionString))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Missing required extension EGL_EXT_stream_consumer_egloutput");
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+int _glfwPlatformInit(void)
+{
+    EGLDeviceEXT egl_dev;
+    int drm_fd;
+
+    // Initialize EGL
+    if (!_glfwInitEGL())
+        return GLFW_FALSE;
+
+    // Initialize global data and extension function pointers
+    if (!initializeExtensions())
+        return GLFW_FALSE;
+
+    // Query and Obtain EGLDevice
+    egl_dev = getEGLDevice();
+
+    // Obtain and open DRM device file
+    drm_fd = getDRMFd(egl_dev);
+
+    // Store for use later
+    _glfw.egldevice.drmFd = drm_fd;
+
+    // Obtain EGLDisplay
+    if (!initEGLDisplay(egl_dev, drm_fd))
+        return GLFW_FALSE;
+
+   _glfwInitTimerPOSIX();
+
+   _glfwPollMonitorsEGLDevice();
+
+    return GLFW_TRUE;
+}
+
+void _glfwPlatformTerminate(void)
+{
+    _glfwTerminateEGL();
+    _glfwTerminateJoysticksLinux();
+}
+
+const char* _glfwPlatformGetVersionString(void)
+{
+    return _GLFW_VERSION_NUMBER "EGLDevice EGL"
+#if defined(_GLFW_BUILD_DLL)
+        " shared"
+#endif
+        ;
+}
+

src/egldevice_monitor.c

@@ -0,0 +1,165 @@
+//========================================================================
+// GLFW 3.3 EGLDevice - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+static GLFWbool pickConnector(_GLFWmonitor* monitor, int drm_fd, drmModeRes* res_info)
+{
+    int i, j;
+
+    // Getting suitable connector, encoder and crtc
+    for (i = 0; i < res_info->count_connectors; i++)
+    {
+        monitor->egldevice.connId = res_info->connectors[i];
+
+        drmModeConnector* conn_info;
+
+        conn_info  =
+            drmModeGetConnector(drm_fd, monitor->egldevice.connId);
+        if (!conn_info)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "EGLDevice: Unable to obtain info for connector (%d)",
+                            monitor->egldevice.connId);
+            return GLFW_FALSE;
+        }
+        if (conn_info->connection == DRM_MODE_CONNECTED &&
+            conn_info->count_modes > 0 &&
+            conn_info->count_encoders > 0)
+        {
+                monitor->egldevice.encId = conn_info->encoders[0];
+
+                drmModeEncoder* enc_info;
+
+                enc_info =
+                    drmModeGetEncoder(drm_fd, monitor->egldevice.encId);
+                if (!enc_info) {
+                    _glfwInputError(GLFW_PLATFORM_ERROR,
+                                    "EGLDevice: Unable to query DRM-KMS information for connector index %d", i);
+                }
+
+                // Select the modesize
+                monitor->currentMode.width = (int)conn_info->modes[0].hdisplay;
+                monitor->currentMode.height = (int)conn_info->modes[0].vdisplay;
+                monitor->currentMode.refreshRate = (int)conn_info->modes[0].vrefresh;
+                monitor->modeCount = (int)conn_info->count_modes;
+                monitor->name = conn_info->modes[0].name;
+
+                for (j = 0; j < res_info->count_crtcs; j++)
+                {
+                    if ((enc_info->possible_crtcs & (1 << j)) == 0)
+                        continue;
+
+                    monitor->egldevice.crtcId = res_info->crtcs[j];
+                    monitor->egldevice.crtcIndex = j;
+
+                    if (res_info->crtcs[i] == enc_info->crtc_id)
+                        break;
+                }
+                if (monitor->egldevice.crtcId == 0)
+                {
+                    _glfwInputError(GLFW_PLATFORM_ERROR,
+                                    "EGLDevice: Unable to select suitable CRTC");
+                    return GLFW_FALSE;
+                }
+                drmModeFreeEncoder(enc_info);
+        }
+        drmModeFreeConnector(conn_info);
+    }
+    return GLFW_TRUE;
+}
+
+static GLFWbool initDRMResources(_GLFWmonitor* monitor, int drm_fd)
+{
+    drmModeRes* res_info;
+
+    res_info = drmModeGetResources(drm_fd);
+    if (!res_info)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Couldn't obtain DRM-KMS resources");
+        return GLFW_FALSE;
+    }
+
+    if(!pickConnector(monitor, drm_fd, res_info))
+        return GLFW_FALSE;
+
+    drmModeFreeResources(res_info);
+
+    return GLFW_TRUE;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+///////////               GLFW platform API                    //////////////
+/////////////////////////////////////////////////////////////////////////////
+
+void _glfwPollMonitorsEGLDevice(void)
+{
+    _GLFWmonitor* monitor = _glfwAllocMonitor("Monitor", 0, 0);
+
+     // Obtain DRM resource info
+    if (!initDRMResources(monitor, _glfw.egldevice.drmFd))
+    {
+        _glfwFreeMonitor(monitor);
+        return;
+    }
+
+    _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_FIRST);
+}
+
+void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetMonitorPos not implemented");
+}
+
+GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetVideoModes not implemented");
+    *found = 0;
+
+    return NULL;
+}
+
+void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetVideoMode not implemented");
+}
+
+void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetGammaRamp not implemented");
+}
+
+void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetGammaRamp not implemented");
+}
+

src/egldevice_platform.h

@@ -0,0 +1,151 @@
+//========================================================================
+// GLFW 3.3 EGLDevice - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/select.h>
+#include <sys/mman.h>
+
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <assert.h>
+#include <math.h>
+#include <stdbool.h>
+
+#include <dlfcn.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <drm_fourcc.h>
+
+#include "posix_time.h"
+#include "linux_joystick.h"
+#include "posix_thread.h"
+#include "egl_context.h"
+#include "osmesa_context.h"
+
+#define EGL_NO_DEVICE_EXT ((EGLDeviceEXT) 0)
+#define EGL_DRM_DEVICE_FILE_EXT 0x3233
+#define EGL_PLATFORM_DEVICE_EXT 0x313f
+#define EGL_DRM_MASTER_FD_EXT 0x333c
+#define EGL_STREAM_FIFO_LENGTH_KHR 0x31fc
+#define EGL_DRM_CRTC_EXT 0x3234
+#define EGL_NO_STREAM_KHR ((EGLStreamKHR) 0)
+#define EGL_STREAM_BIT_KHR 0x0800
+
+typedef void* EGLOutputLayerEXT;
+typedef void* EGLStreamKHR;
+typedef void* EGLDeviceEXT;
+
+typedef EGLBoolean (EGLAPIENTRY * PFNEGLQUERYDEVICESEXTPROC)(EGLint,EGLDeviceEXT*,EGLint*);
+typedef const char *(EGLAPIENTRY * PFNEGLQUERYDEVICESTRINGEXTPROC)(EGLDeviceEXT,EGLint);
+typedef EGLDisplay (EGLAPIENTRY * PFNEGLGETPLATFORMDISPLAYEXTPROC)(EGLenum,void*,const EGLint*);
+typedef EGLBoolean (EGLAPIENTRY * PFNEGLGETOUTPUTLAYERSEXTPROC)(EGLDisplay,const EGLAttrib*,EGLOutputLayerEXT*,EGLint,EGLint*);
+typedef EGLStreamKHR (EGLAPIENTRY * PFNEGLCREATESTREAMKHRPROC)(EGLDisplay,const EGLint*);
+typedef EGLBoolean (EGLAPIENTRY * PFNEGLDESTROYSTREAMKHRPROC)(EGLDisplay,EGLStreamKHR);
+typedef EGLBoolean (EGLAPIENTRY * PFNEGLSTREAMCONSUMEROUTPUTEXTPROC)(EGLDisplay,EGLStreamKHR,EGLOutputLayerEXT);
+typedef EGLSurface (EGLAPIENTRY * PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC)(EGLDisplay,EGLConfig,EGLStreamKHR,const EGLint*);
+typedef EGLBoolean (EGLAPIENTRY * PFNEGLSTREAMATTRIBKHRPROC)(EGLDisplay,EGLStreamKHR,EGLenum,EGLint);
+typedef EGLBoolean (EGLAPIENTRY * PFNEGLSTREAMCONSUMERACQUIREATTRIBKHRPROC)(EGLDisplay,EGLStreamKHR,const EGLAttrib*);
+#define eglQueryDevicesEXT _glfw.egldevice.QueryDevicesEXT
+#define eglQueryDeviceStringEXT _glfw.egldevice.QueryDeviceStringEXT
+#define eglGetPlatformDisplayEXT _glfw.egldevice.GetPlatformDisplayEXT
+#define eglGetOutputLayersEXT _glfw.egldevice.GetOutputLayersEXT
+#define eglCreateStreamKHR _glfw.egldevice.CreateStreamKHR
+#define eglDestroyStreamKHR _glfw.egldevice.DestroyStreamKHR
+#define eglStreamConsumerOutputEXT _glfw.egldevice.StreamConsumerOutputEXT
+#define eglCreateStreamProducerSurfaceKHR _glfw.egldevice.CreateStreamProducerSurfaceKHR
+#define eglStreamAttribKHR _glfw.egldevice.StreamAttribKHR
+#define eglStreamConsumerAcquireAttribKHR _glfw.egldevice.StreamConsumerAcquireAttribKHR
+
+#define _glfw_dlopen(name) dlopen(name, RTLD_LAZY | RTLD_LOCAL)
+#define _glfw_dlclose(handle) dlclose(handle)
+#define _glfw_dlsym(handle, name) dlsym(handle, name)
+
+#define _GLFW_EGL_NATIVE_DISPLAY EGL_DEFAULT_DISPLAY
+#define _GLFW_EGL_NATIVE_WINDOW ((EGLNativeWindowType)window->egldevice.handle)
+
+#define _GLFW_PLATFORM_WINDOW_STATE         _GLFWwindowEGLDevice egldevice
+#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE _GLFWlibraryEGLDevice egldevice
+#define _GLFW_PLATFORM_MONITOR_STATE        _GLFWmonitorEGLDevice egldevice
+#define _GLFW_PLATFORM_CURSOR_STATE         _GLFWcursorEGLDevice egldevice
+
+#define _GLFW_PLATFORM_CONTEXT_STATE
+#define _GLFW_PLATFORM_LIBRARY_CONTEXT_STATE
+
+// EGLDevice-specific per-window data
+//
+typedef struct _GLFWwindowEGLDevice
+{
+    int xsurfsize, ysurfsize;
+    int xoffset, yoffset;
+    int fifo;
+
+    uint32_t planeId;
+
+    EGLDisplay handle;
+    EGLOutputLayerEXT eglLayer;
+    EGLStreamKHR eglStream;
+} _GLFWwindowEGLDevice;
+
+// EGLDevice-specific global data
+//
+typedef struct _GLFWlibraryEGLDevice
+{
+    int drmFd;
+
+    PFNEGLQUERYDEVICESEXTPROC                QueryDevicesEXT;
+    PFNEGLQUERYDEVICESTRINGEXTPROC           QueryDeviceStringEXT;
+    PFNEGLGETPLATFORMDISPLAYEXTPROC          GetPlatformDisplayEXT;
+    PFNEGLGETOUTPUTLAYERSEXTPROC             GetOutputLayersEXT;
+    PFNEGLCREATESTREAMKHRPROC                CreateStreamKHR;
+    PFNEGLDESTROYSTREAMKHRPROC               DestroyStreamKHR;
+    PFNEGLSTREAMCONSUMEROUTPUTEXTPROC        StreamConsumerOutputEXT;
+    PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC CreateStreamProducerSurfaceKHR;
+    PFNEGLSTREAMATTRIBKHRPROC                StreamAttribKHR;
+    PFNEGLSTREAMCONSUMERACQUIREATTRIBKHRPROC StreamConsumerAcquireAttribKHR;
+} _GLFWlibraryEGLDevice;
+
+// EGLDevice-specific per-monitor data
+//
+typedef struct _GLFWmonitorEGLDevice
+{
+    int crtcIndex;
+    uint32_t connId, encId, crtcId;
+} _GLFWmonitorEGLDevice;
+
+// EGLDevice-specific per-cursor data
+//
+typedef struct _GLFWcursorEGLDevice
+{
+} _GLFWcursorEGLDevice;
+
+void _glfwPollMonitorsEGLDevice(void);
+

src/egldevice_window.c

@@ -0,0 +1,430 @@
+//========================================================================
+// GLFW 3.3 EGLDevice - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+///////////////////////////////////////////////////////////////////////////
+////////            GLFW platform API                          /////////////
+///////////////////////////////////////////////////////////////////////////
+
+int _glfwPlatformCreateWindow(_GLFWwindow* window,
+                              const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig)
+{
+    int n;
+    _GLFWmonitor* monitor;
+    EGLAttrib layerAttribs[] = { EGL_NONE, EGL_NONE, EGL_NONE };
+    EGLint streamAttribs[] = { EGL_STREAM_FIFO_LENGTH_KHR,
+                             window->egldevice.fifo, EGL_NONE };
+    EGLint surfaceAttribs[] = { EGL_WIDTH, 0, EGL_HEIGHT, 0, EGL_NONE };
+
+    if (window->monitor)
+        monitor = window->monitor;
+    else
+        monitor = _glfw.monitors[0];
+
+    window->egldevice.xsurfsize = wndconfig->width;
+    window->egldevice.ysurfsize = wndconfig->height;
+
+    if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
+        return GLFW_FALSE;
+
+    // Get the layer for this crtc/plane
+    layerAttribs[0] = EGL_DRM_CRTC_EXT;
+    layerAttribs[1] = (EGLAttrib)monitor->egldevice.crtcId;
+
+    if (!eglGetOutputLayersEXT(_glfw.egl.display, layerAttribs,
+                               &window->egldevice.eglLayer,
+                               1, &n) || !n)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Unable to obtain EGLOutputLayer");
+        return GLFW_FALSE;
+    }
+
+    // Create a stream and connect to the output
+    window->egldevice.eglStream =
+        eglCreateStreamKHR(_glfw.egl.display, streamAttribs);
+    if (window->egldevice.eglStream == EGL_NO_STREAM_KHR)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Unable to create stream (error 0x%x)",
+                        eglGetError());
+        return GLFW_FALSE;
+    }
+    if (!eglStreamConsumerOutputEXT(_glfw.egl.display,
+                                    window->egldevice.eglStream,
+                                    window->egldevice.eglLayer))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Unable to connect stream (error 0x%x)",
+                        eglGetError());
+        return GLFW_FALSE;
+    }
+
+    // Create a surface to feed the stream
+    surfaceAttribs[1] = window->egldevice.xsurfsize;
+    surfaceAttribs[3] = window->egldevice.ysurfsize;
+    window->context.egl.surface =
+        eglCreateStreamProducerSurfaceKHR(_glfw.egl.display,
+                                          window->context.egl.config,
+                                          window->egldevice.eglStream,
+                                          surfaceAttribs);
+    if (window->context.egl.surface == EGL_NO_SURFACE)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGLDevice: Unable to create rendering surface (error 0x%x)", eglGetError());
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyWindow(_GLFWwindow* window)
+{
+    if (window->context.client != GLFW_NO_API)
+        window->context.destroy(window);
+
+    if (window->egldevice.eglStream != EGL_NO_STREAM_KHR)
+        eglDestroyStreamKHR(_glfw.egl.display, window->egldevice.eglStream);
+}
+
+void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowTitle is not supported");
+}
+
+void _glfwPlatformSetWindowIcon(_GLFWwindow* window,
+                                int count, const GLFWimage* images)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowIcon is not supported");
+}
+
+void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = window->egldevice.xoffset;
+    if (ypos)
+        *ypos = window->egldevice.yoffset;
+}
+
+void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
+{
+    window->egldevice.xoffset = xpos;
+    window->egldevice.yoffset = ypos;
+
+    drmModeRes* res_info;
+    _GLFWmonitor* monitor;
+
+    if (window->monitor)
+        monitor = window->monitor;
+    else
+        monitor = _glfw.monitors[0];
+
+    res_info = drmModeGetResources(_glfw.egldevice.drmFd);
+    if (drmModeSetCrtc(_glfw.egldevice.drmFd,
+                       res_info->crtcs[monitor->egldevice.crtcIndex],
+                       -1, window->egldevice.xoffset, window->egldevice.yoffset,
+                       &res_info->connectors[monitor->egldevice.crtcIndex], 1, NULL))
+    {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "EGLDevice: Setting window pos failed");
+    }
+    drmModeFreeResources(res_info);
+}
+
+void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
+{
+    if (width)
+        *width = window->egldevice.xsurfsize;
+    if (height)
+        *height = window->egldevice.ysurfsize;
+}
+
+void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowSize not implemented");
+}
+
+void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
+                                      int minwidth, int minheight,
+                                      int maxwidth, int maxheight)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowSizeLimits not implemented");
+}
+
+void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int numer, int denom)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowAspectRatio not implemented");
+}
+
+void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height)
+{
+    _glfwPlatformGetWindowSize(window, width, height);
+}
+
+void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
+                                     int* left, int* top,
+                                     int* right, int* bottom)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetWindowFrameSize not implemented");
+}
+
+void _glfwPlatformIconifyWindow(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformIconifyWindow not implemented");
+}
+
+void _glfwPlatformRestoreWindow(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformRestoreWindow not implemented");
+}
+
+void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformMaximizeWindow not implemented");
+}
+
+void _glfwPlatformSetWindowResizable(_GLFWwindow* window, GLFWbool enabled)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowResizable not implemented");
+}
+
+void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, GLFWbool enabled)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowDecorated not implemented");
+}
+
+void _glfwPlatformSetWindowFloating(_GLFWwindow* window, GLFWbool enabled)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowFloating not implemented");
+}
+
+void _glfwPlatformRequestWindowAttention(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformRequestWindowAttention not implemented");
+}
+
+void _glfwPlatformShowWindow(_GLFWwindow* window)
+{
+    return;
+}
+
+void _glfwPlatformUnhideWindow(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformUnhideWindow not implemented");
+}
+
+void _glfwPlatformHideWindow(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformHideWindow not implemented");
+}
+
+void _glfwPlatformFocusWindow(_GLFWwindow* window)
+{
+    return;
+}
+
+void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
+                                   _GLFWmonitor* monitor,
+                                   int xpos, int ypos,
+                                   int width, int height,
+                                   int refreshRate)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetWindowMonitor not implemented");
+}
+int _glfwPlatformWindowFocused(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformWindowFocused not implemented");
+    return GLFW_FALSE;
+}
+
+int _glfwPlatformWindowIconified(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformWindowIconified not implemented");
+    return GLFW_FALSE;
+}
+
+int _glfwPlatformWindowVisible(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformWindowVisible not implemented");
+    return GLFW_FALSE;
+}
+
+int _glfwPlatformWindowMaximized(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformWindowMaximized not implemented");
+    return 0;
+}
+
+void _glfwPlatformPollEvents(void)
+{
+    _glfwDetectJoystickConnectionLinux();
+}
+
+void _glfwPlatformWaitEvents(void)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformWaitEvents not supported");
+}
+
+void _glfwPlatformWaitEventsTimeout(double timeout)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformWaitEventsTimeout not supported");
+}
+
+void _glfwPlatformPostEmptyEvent(void)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformPostEmptyEvent not supported");
+}
+
+void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetCursorPos not supported");
+}
+
+void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetCursorPos not supported");
+}
+
+void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetCursorMode not supported");
+}
+
+const char* _glfwPlatformGetKeyName(int key, int scancode)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetKeyName not supported");
+    return NULL;
+}
+
+int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
+                              const GLFWimage* image,
+                              int xhot, int yhot)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformCreateCursor not supported");
+    return GLFW_FALSE;
+}
+
+int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformCreateStandardCursor not supported");
+    return GLFW_FALSE;
+}
+
+void _glfwPlatformDestroyCursor(_GLFWcursor* cursor)
+{
+    return;
+}
+
+void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetCursor not supported");
+}
+
+void _glfwPlatformSetClipboardString(_GLFWwindow* window, const char* string)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformSetClipboardString not supported");
+}
+
+const char* _glfwPlatformGetClipboardString(_GLFWwindow* window)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetClipboardString not supported");
+    return NULL;
+}
+
+const char* _glfwPlatformGetScancodeName(int scancode)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetScancodeName not supported");
+    return "";
+}
+
+int _glfwPlatformGetKeyScancode(int key)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetKeyScancode not supported");
+    return -1;
+}
+
+void _glfwPlatformGetRequiredInstanceExtensions(char** extensions)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetRequiredInstanceExtensions not supported");
+}
+
+int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
+                                                      VkPhysicalDevice device,
+                                                      uint32_t queuefamily)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformGetPhysicalDevicePresentationSupport not supported");
+    return GLFW_FALSE;
+}
+
+VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
+                                          _GLFWwindow* window,
+                                          const VkAllocationCallbacks* allocator,
+                                          VkSurfaceKHR* surface)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "EGLDevice: _glfwPlatformCreateWindowSurface not supported");
+    return VK_ERROR_INITIALIZATION_FAILED;
+}
+

src/glfw_config.h.in

@@ -46,6 +46,8 @@
 #cmakedefine _GLFW_MIR
 // Define this to 1 if building GLFW for OSMesa
 #cmakedefine _GLFW_OSMESA
+// Define this to 1 if building GLFW for EGLDevice
+#cmakedefine _GLFW_EGLDEVICE
 
 // Define this to 1 if building as a shared library / dynamic library / DLL
 #cmakedefine _GLFW_BUILD_DLL

src/internal.h

@@ -190,6 +190,8 @@ typedef void (APIENTRY * PFN_vkVoidFunction)(void);
  #include "mir_platform.h"
 #elif defined(_GLFW_OSMESA)
  #include "null_platform.h"
+#elif defined(_GLFW_EGLDEVICE)
+ #include "egldevice_platform.h"
 #else
  #error "No supported window creation API selected"
 #endif

src/mir_window.c

@@ -869,7 +869,8 @@ int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
                                                       VkPhysicalDevice device,
                                                       uint32_t queuefamily)
 {
-    PFN_vkGetPhysicalDeviceMirPresentationSupportKHR vkGetPhysicalDeviceMirPresentationSupportKHR =
+    PFN_vkGetPhysicalDeviceMirPresentationSupportKHR
+        vkGetPhysicalDeviceMirPresentationSupportKHR =
         (PFN_vkGetPhysicalDeviceMirPresentationSupportKHR)
         vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceMirPresentationSupportKHR");
     if (!vkGetPhysicalDeviceMirPresentationSupportKHR)

src/win32_init.c

@@ -30,7 +30,8 @@
 #include <stdlib.h>
 #include <malloc.h>
 
-static const GUID _glfw_GUID_DEVINTERFACE_HID = {0x4d1e55b2,0xf16f,0x11cf,{0x88,0xcb,0x00,0x11,0x11,0x00,0x00,0x30}};
+static const GUID _glfw_GUID_DEVINTERFACE_HID =
+    {0x4d1e55b2,0xf16f,0x11cf,{0x88,0xcb,0x00,0x11,0x11,0x00,0x00,0x30}};
 
 #define GUID_DEVINTERFACE_HID _glfw_GUID_DEVINTERFACE_HID
 
@@ -68,7 +69,8 @@ static GLFWbool loadLibraries(void)
     _glfw.win32.winmm.instance = LoadLibraryA("winmm.dll");
     if (!_glfw.win32.winmm.instance)
     {
-        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, "Win32: Failed to load winmm.dll");
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to load winmm.dll");
         return GLFW_FALSE;
     }
 
@@ -78,7 +80,8 @@ static GLFWbool loadLibraries(void)
     _glfw.win32.user32.instance = LoadLibraryA("user32.dll");
     if (!_glfw.win32.user32.instance)
     {
-        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, "Win32: Failed to load user32.dll");
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to load user32.dll");
         return GLFW_FALSE;
     }
 

src/win32_joystick.c

@@ -50,16 +50,26 @@ typedef struct _GLFWobjenumWin32
 
 // Define local copies of the necessary GUIDs
 //
-static const GUID _glfw_IID_IDirectInput8W = {0xbf798031,0x483a,0x4da2,{0xaa,0x99,0x5d,0x64,0xed,0x36,0x97,0x00}};
-static const GUID _glfw_GUID_XAxis = {0xa36d02e0,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_YAxis = {0xa36d02e1,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_ZAxis = {0xa36d02e2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_RxAxis = {0xa36d02f4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_RyAxis = {0xa36d02f5,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_RzAxis = {0xa36d02e3,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_Slider = {0xa36d02e4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_Button = {0xa36d02f0,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
-static const GUID _glfw_GUID_POV = {0xa36d02f2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_IID_IDirectInput8W =
+    {0xbf798031,0x483a,0x4da2,{0xaa,0x99,0x5d,0x64,0xed,0x36,0x97,0x00}};
+static const GUID _glfw_GUID_XAxis =
+    {0xa36d02e0,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_YAxis =
+    {0xa36d02e1,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_ZAxis =
+    {0xa36d02e2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RxAxis =
+    {0xa36d02f4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RyAxis =
+    {0xa36d02f5,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RzAxis =
+    {0xa36d02e3,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_Slider =
+    {0xa36d02e4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_Button =
+    {0xa36d02f0,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_POV =
+    {0xa36d02f2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
 
 #define IID_IDirectInput8W _glfw_IID_IDirectInput8W
 #define GUID_XAxis _glfw_GUID_XAxis
@@ -345,10 +355,12 @@ static BOOL CALLBACK deviceCallback(const DIDEVICEINSTANCE* di, void* user)
 
     for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
     {
-        if (!_glfw.joysticks[jid].present)
-            continue;
-        if (memcmp(&_glfw.joysticks[jid].win32.guid, &di->guidInstance, sizeof(GUID)) == 0)
-            return DIENUM_CONTINUE;
+        _GLFWjoystick* js = _glfw.joysticks + jid;
+        if (js->present)
+        {
+            if (memcmp(&js->win32.guid, &di->guidInstance, sizeof(GUID)) == 0)
+                return DIENUM_CONTINUE;
+        }
     }
 
     if (supportsXInput(&di->guidProduct))

src/win32_window.c

@@ -1798,7 +1798,8 @@ int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
                                                       VkPhysicalDevice device,
                                                       uint32_t queuefamily)
 {
-    PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR vkGetPhysicalDeviceWin32PresentationSupportKHR =
+    PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR
+        vkGetPhysicalDeviceWin32PresentationSupportKHR =
         (PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR)
         vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceWin32PresentationSupportKHR");
     if (!vkGetPhysicalDeviceWin32PresentationSupportKHR)

src/wl_window.c

@@ -1019,7 +1019,8 @@ int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
                                                       VkPhysicalDevice device,
                                                       uint32_t queuefamily)
 {
-    PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR vkGetPhysicalDeviceWaylandPresentationSupportKHR =
+    PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR
+        vkGetPhysicalDeviceWaylandPresentationSupportKHR =
         (PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR)
         vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceWaylandPresentationSupportKHR");
     if (!vkGetPhysicalDeviceWaylandPresentationSupportKHR)

src/x11_init.c

@@ -237,8 +237,8 @@ static void createKeyTables(void)
 
     if (_glfw.x11.xkb.available)
     {
-        // Use XKB to determine physical key locations independently of the current
-        // keyboard layout
+        // Use XKB to determine physical key locations independently of the
+        // current keyboard layout
 
         char name[XkbKeyNameLength + 1];
         XkbDescPtr desc = XkbGetMap(_glfw.x11.display, 0, XkbUseCoreKbd);
@@ -661,10 +661,7 @@ static GLFWbool initExtensions(void)
 
     // String format atoms
     _glfw.x11.NULL_ = XInternAtom(_glfw.x11.display, "NULL", False);
-    _glfw.x11.UTF8_STRING =
-        XInternAtom(_glfw.x11.display, "UTF8_STRING", False);
-    _glfw.x11.COMPOUND_STRING =
-        XInternAtom(_glfw.x11.display, "COMPOUND_STRING", False);
+    _glfw.x11.UTF8_STRING = XInternAtom(_glfw.x11.display, "UTF8_STRING", False);
     _glfw.x11.ATOM_PAIR = XInternAtom(_glfw.x11.display, "ATOM_PAIR", False);
 
     // Custom selection property atom
@@ -675,6 +672,7 @@ static GLFWbool initExtensions(void)
     _glfw.x11.TARGETS = XInternAtom(_glfw.x11.display, "TARGETS", False);
     _glfw.x11.MULTIPLE = XInternAtom(_glfw.x11.display, "MULTIPLE", False);
     _glfw.x11.PRIMARY = XInternAtom(_glfw.x11.display, "PRIMARY", False);
+    _glfw.x11.INCR = XInternAtom(_glfw.x11.display, "INCR", False);
     _glfw.x11.CLIPBOARD = XInternAtom(_glfw.x11.display, "CLIPBOARD", False);
 
     // Clipboard manager atoms
@@ -862,12 +860,13 @@ int _glfwPlatformInit(void)
     _glfw.x11.screen = DefaultScreen(_glfw.x11.display);
     _glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen);
     _glfw.x11.context = XUniqueContext();
-    _glfw.x11.helperWindowHandle = createHelperWindow();
-    _glfw.x11.hiddenCursorHandle = createHiddenCursor();
 
     if (!initExtensions())
         return GLFW_FALSE;
 
+    _glfw.x11.helperWindowHandle = createHelperWindow();
+    _glfw.x11.hiddenCursorHandle = createHiddenCursor();
+
     if (XSupportsLocale())
     {
         XSetLocaleModifiers("");

src/x11_platform.h

@@ -265,6 +265,7 @@ typedef struct _GLFWlibraryX11
     // Selection (clipboard) atoms
     Atom            TARGETS;
     Atom            MULTIPLE;
+    Atom            INCR;
     Atom            CLIPBOARD;
     Atom            PRIMARY;
     Atom            CLIPBOARD_MANAGER;

src/x11_window.c

@@ -164,6 +164,17 @@ static Bool isFrameExtentsEvent(Display* display, XEvent* event, XPointer pointe
            event->xproperty.atom == _glfw.x11.NET_FRAME_EXTENTS;
 }
 
+// Returns whether it is a property event for the specified selection transfer
+//
+static Bool isSelPropNewValueNotify(Display* display, XEvent* event, XPointer pointer)
+{
+    XEvent* notification = (XEvent*) pointer;
+    return event->type == PropertyNotify &&
+           event->xproperty.state == PropertyNewValue &&
+           event->xproperty.window == notification->xselection.requestor &&
+           event->xproperty.atom == notification->xselection.property;
+}
+
 // Translates a GLFW standard cursor to a font cursor shape
 //
 static int translateCursorShape(int shape)
@@ -449,6 +460,81 @@ static char** parseUriList(char* text, int* count)
     return paths;
 }
 
+// Encode a Unicode code point to a UTF-8 stream
+// Based on cutef8 by Jeff Bezanson (Public Domain)
+//
+static size_t encodeUTF8(char* s, unsigned int ch)
+{
+    size_t count = 0;
+
+    if (ch < 0x80)
+        s[count++] = (char) ch;
+    else if (ch < 0x800)
+    {
+        s[count++] = (ch >> 6) | 0xc0;
+        s[count++] = (ch & 0x3f) | 0x80;
+    }
+    else if (ch < 0x10000)
+    {
+        s[count++] = (ch >> 12) | 0xe0;
+        s[count++] = ((ch >> 6) & 0x3f) | 0x80;
+        s[count++] = (ch & 0x3f) | 0x80;
+    }
+    else if (ch < 0x110000)
+    {
+        s[count++] = (ch >> 18) | 0xf0;
+        s[count++] = ((ch >> 12) & 0x3f) | 0x80;
+        s[count++] = ((ch >> 6) & 0x3f) | 0x80;
+        s[count++] = (ch & 0x3f) | 0x80;
+    }
+
+    return count;
+}
+
+// Decode a Unicode code point from a UTF-8 stream
+// Based on cutef8 by Jeff Bezanson (Public Domain)
+//
+#if defined(X_HAVE_UTF8_STRING)
+static unsigned int decodeUTF8(const char** s)
+{
+    unsigned int ch = 0, count = 0;
+    static const unsigned int offsets[] =
+    {
+        0x00000000u, 0x00003080u, 0x000e2080u,
+        0x03c82080u, 0xfa082080u, 0x82082080u
+    };
+
+    do
+    {
+        ch = (ch << 6) + (unsigned char) **s;
+        (*s)++;
+        count++;
+    } while ((**s & 0xc0) == 0x80);
+
+    assert(count <= 6);
+    return ch - offsets[count - 1];
+}
+#endif /*X_HAVE_UTF8_STRING*/
+
+// Convert the specified Latin-1 string to UTF-8
+//
+static char* convertLatin1toUTF8(const char* source)
+{
+    size_t size = 1;
+    const char* sp;
+
+    for (sp = source;  *sp;  sp++)
+        size += (*sp & 0x80) ? 2 : 1;
+
+    char* target = calloc(size, 1);
+    char* tp = target;
+
+    for (sp = source;  *sp;  sp++)
+        tp += encodeUTF8(tp, *sp);
+
+    return target;
+}
+
 // Centers the cursor over the window client area
 //
 static void centerCursor(_GLFWwindow* window)
@@ -672,9 +758,7 @@ static Atom writeTargetToProperty(const XSelectionRequestEvent* request)
 {
     int i;
     char* selectionString = NULL;
-    const Atom formats[] = { _glfw.x11.UTF8_STRING,
-                             _glfw.x11.COMPOUND_STRING,
-                             XA_STRING };
+    const Atom formats[] = { _glfw.x11.UTF8_STRING, XA_STRING };
     const int formatCount = sizeof(formats) / sizeof(formats[0]);
 
     if (request->selection == _glfw.x11.PRIMARY)
@@ -696,7 +780,6 @@ static Atom writeTargetToProperty(const XSelectionRequestEvent* request)
         const Atom targets[] = { _glfw.x11.TARGETS,
                                  _glfw.x11.MULTIPLE,
                                  _glfw.x11.UTF8_STRING,
-                                 _glfw.x11.COMPOUND_STRING,
                                  XA_STRING };
 
         XChangeProperty(_glfw.x11.display,
@@ -841,10 +924,8 @@ static const char* getSelectionString(Atom selection)
 {
     size_t i;
     char** selectionString = NULL;
-    const Atom formats[] = { _glfw.x11.UTF8_STRING,
-                             _glfw.x11.COMPOUND_STRING,
-                             XA_STRING };
-    const size_t formatCount = sizeof(formats) / sizeof(formats[0]);
+    const Atom targets[] = { _glfw.x11.UTF8_STRING, XA_STRING };
+    const size_t targetCount = sizeof(targets) / sizeof(targets[0]);
 
     if (selection == _glfw.x11.PRIMARY)
         selectionString = &_glfw.x11.primarySelectionString;
@@ -862,14 +943,17 @@ static const char* getSelectionString(Atom selection)
     free(*selectionString);
     *selectionString = NULL;
 
-    for (i = 0;  i < formatCount;  i++)
+    for (i = 0;  i < targetCount;  i++)
     {
         char* data;
-        XEvent event;
+        Atom actualType;
+        int actualFormat;
+        unsigned long itemCount, bytesAfter;
+        XEvent notification, dummy;
 
         XConvertSelection(_glfw.x11.display,
                           selection,
-                          formats[i],
+                          targets[i],
                           _glfw.x11.GLFW_SELECTION,
                           _glfw.x11.helperWindowHandle,
                           CurrentTime);
@@ -877,28 +961,92 @@ static const char* getSelectionString(Atom selection)
         while (!XCheckTypedWindowEvent(_glfw.x11.display,
                                        _glfw.x11.helperWindowHandle,
                                        SelectionNotify,
-                                       &event))
+                                       &notification))
         {
             waitForEvent(NULL);
         }
 
-        if (event.xselection.property == None)
+        if (notification.xselection.property == None)
             continue;
 
-        if (_glfwGetWindowPropertyX11(event.xselection.requestor,
-                                      event.xselection.property,
-                                      event.xselection.target,
-                                      (unsigned char**) &data))
+        XCheckIfEvent(_glfw.x11.display,
+                      &dummy,
+                      isSelPropNewValueNotify,
+                      (XPointer) &notification);
+
+        XGetWindowProperty(_glfw.x11.display,
+                           notification.xselection.requestor,
+                           notification.xselection.property,
+                           0,
+                           LONG_MAX,
+                           True,
+                           AnyPropertyType,
+                           &actualType,
+                           &actualFormat,
+                           &itemCount,
+                           &bytesAfter,
+                           (unsigned char**) &data);
+
+        if (actualType == _glfw.x11.INCR)
         {
-            *selectionString = strdup(data);
+            size_t size = 1;
+            char* string = NULL;
+
+            for (;;)
+            {
+                while (!XCheckIfEvent(_glfw.x11.display,
+                                      &dummy,
+                                      isSelPropNewValueNotify,
+                                      (XPointer) &notification))
+                {
+                    waitForEvent(NULL);
+                }
+
+                XFree(data);
+                XGetWindowProperty(_glfw.x11.display,
+                                   notification.xselection.requestor,
+                                   notification.xselection.property,
+                                   0,
+                                   LONG_MAX,
+                                   True,
+                                   AnyPropertyType,
+                                   &actualType,
+                                   &actualFormat,
+                                   &itemCount,
+                                   &bytesAfter,
+                                   (unsigned char**) &data);
+
+                if (itemCount)
+                {
+                    size += itemCount;
+                    string = realloc(string, size);
+                    string[size - itemCount - 1] = '\0';
+                    strcat(string, data);
+                }
+
+                if (!itemCount)
+                {
+                    if (targets[i] == XA_STRING)
+                    {
+                        *selectionString = convertLatin1toUTF8(string);
+                        free(string);
+                    }
+                    else
+                        *selectionString = string;
+
+                    break;
+                }
+            }
+        }
+        else if (actualType == targets[i])
+        {
+            if (targets[i] == XA_STRING)
+                *selectionString = convertLatin1toUTF8(data);
+            else
+                *selectionString = strdup(data);
         }
 
-        if (data)
-            XFree(data);
-
-        XDeleteProperty(_glfw.x11.display,
-                        event.xselection.requestor,
-                        event.xselection.property);
+        XFree(data);
 
         if (*selectionString)
             break;
@@ -907,7 +1055,7 @@ static const char* getSelectionString(Atom selection)
     if (!*selectionString)
     {
         _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
-                        "X11: Failed to convert clipboard to string");
+                        "X11: Failed to convert selection to string");
     }
 
     return *selectionString;
@@ -978,62 +1126,6 @@ static void releaseMonitor(_GLFWwindow* window)
     }
 }
 
-// Encode a Unicode code point to a UTF-8 stream
-// Based on cutef8 by Jeff Bezanson (Public Domain)
-//
-static size_t encodeUTF8(char* s, unsigned int ch)
-{
-    size_t count = 0;
-
-    if (ch < 0x80)
-        s[count++] = (char) ch;
-    else if (ch < 0x800)
-    {
-        s[count++] = (ch >> 6) | 0xc0;
-        s[count++] = (ch & 0x3f) | 0x80;
-    }
-    else if (ch < 0x10000)
-    {
-        s[count++] = (ch >> 12) | 0xe0;
-        s[count++] = ((ch >> 6) & 0x3f) | 0x80;
-        s[count++] = (ch & 0x3f) | 0x80;
-    }
-    else if (ch < 0x110000)
-    {
-        s[count++] = (ch >> 18) | 0xf0;
-        s[count++] = ((ch >> 12) & 0x3f) | 0x80;
-        s[count++] = ((ch >> 6) & 0x3f) | 0x80;
-        s[count++] = (ch & 0x3f) | 0x80;
-    }
-
-    return count;
-}
-
-// Decode a Unicode code point from a UTF-8 stream
-// Based on cutef8 by Jeff Bezanson (Public Domain)
-//
-#if defined(X_HAVE_UTF8_STRING)
-static unsigned int decodeUTF8(const char** s)
-{
-    unsigned int ch = 0, count = 0;
-    static const unsigned int offsets[] =
-    {
-        0x00000000u, 0x00003080u, 0x000e2080u,
-        0x03c82080u, 0xfa082080u, 0x82082080u
-    };
-
-    do
-    {
-        ch = (ch << 6) + (unsigned char) **s;
-        (*s)++;
-        count++;
-    } while ((**s & 0xc0) == 0x80);
-
-    assert(count <= 6);
-    return ch - offsets[count - 1];
-}
-#endif /*X_HAVE_UTF8_STRING*/
-
 // Process the specified X event
 //
 static void processEvent(XEvent *event)
@@ -1171,8 +1263,10 @@ static void processEvent(XEvent *event)
 
                     count = XwcLookupString(window->x11.ic,
                                             &event->xkey,
-                                            buffer, sizeof(buffer) / sizeof(wchar_t),
-                                            NULL, &status);
+                                            buffer,
+                                            sizeof(buffer) / sizeof(wchar_t),
+                                            NULL,
+                                            &status);
 
                     if (status == XBufferOverflow)
                     {
@@ -1345,7 +1439,8 @@ static void processEvent(XEvent *event)
             const int x = event->xmotion.x;
             const int y = event->xmotion.y;
 
-            if (x != window->x11.warpCursorPosX || y != window->x11.warpCursorPosY)
+            if (x != window->x11.warpCursorPosX ||
+                y != window->x11.warpCursorPosY)
             {
                 // The cursor was moved by something other than GLFW
 
@@ -1424,14 +1519,15 @@ static void processEvent(XEvent *event)
 
                 if (protocol == _glfw.x11.WM_DELETE_WINDOW)
                 {
-                    // The window manager was asked to close the window, for example by
-                    // the user pressing a 'close' window decoration button
+                    // The window manager was asked to close the window, for
+                    // example by the user pressing a 'close' window decoration
+                    // button
                     _glfwInputWindowCloseRequest(window);
                 }
                 else if (protocol == _glfw.x11.NET_WM_PING)
                 {
-                    // The window manager is pinging the application to ensure it's
-                    // still responding to events
+                    // The window manager is pinging the application to ensure
+                    // it's still responding to events
 
                     XEvent reply = *event;
                     reply.xclient.window = _glfw.x11.root;
@@ -1773,9 +1869,10 @@ void _glfwPushSelectionToManagerX11(void)
                 {
                     if (event.xselection.target == _glfw.x11.SAVE_TARGETS)
                     {
-                        // This means one of two things; either the selection was
-                        // not owned, which means there is no clipboard manager, or
-                        // the transfer to the clipboard manager has completed
+                        // This means one of two things; either the selection
+                        // was not owned, which means there is no clipboard
+                        // manager, or the transfer to the clipboard manager has
+                        // completed
                         // In either case, it means we are done here
                         return;
                     }
@@ -2695,7 +2792,8 @@ int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
 
     if (_glfw.vk.KHR_xcb_surface && _glfw.x11.x11xcb.handle)
     {
-        PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR vkGetPhysicalDeviceXcbPresentationSupportKHR =
+        PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR
+            vkGetPhysicalDeviceXcbPresentationSupportKHR =
             (PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)
             vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceXcbPresentationSupportKHR");
         if (!vkGetPhysicalDeviceXcbPresentationSupportKHR)
@@ -2720,7 +2818,8 @@ int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
     }
     else
     {
-        PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR vkGetPhysicalDeviceXlibPresentationSupportKHR =
+        PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR
+            vkGetPhysicalDeviceXlibPresentationSupportKHR =
             (PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR)
             vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceXlibPresentationSupportKHR");
         if (!vkGetPhysicalDeviceXlibPresentationSupportKHR)