//======================================================================== // GLFW 3.3 X11 - www.glfw.org //------------------------------------------------------------------------ // Copyright (c) 2002-2006 Marcus Geelnard // Copyright (c) 2006-2016 Camilla Löwy // // 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. // //======================================================================== #define _GNU_SOURCE #include "internal.h" #include "backend_utils.h" #include #include #include #include #include #include #include #include // Check whether the specified atom is supported // static Atom getSupportedAtom(Atom* supportedAtoms, unsigned long atomCount, const char* atomName) { unsigned long i; const Atom atom = XInternAtom(_glfw.x11.display, atomName, False); for (i = 0; i < atomCount; i++) { if (supportedAtoms[i] == atom) return atom; } return None; } // Check whether the running window manager is EWMH-compliant // static void detectEWMH(void) { Window* windowFromRoot = NULL; Window* windowFromChild = NULL; // First we need a couple of atoms const Atom supportingWmCheck = XInternAtom(_glfw.x11.display, "_NET_SUPPORTING_WM_CHECK", False); const Atom wmSupported = XInternAtom(_glfw.x11.display, "_NET_SUPPORTED", False); // Then we look for the _NET_SUPPORTING_WM_CHECK property of the root window if (!_glfwGetWindowPropertyX11(_glfw.x11.root, supportingWmCheck, XA_WINDOW, (unsigned char**) &windowFromRoot)) { return; } _glfwGrabErrorHandlerX11(); // It should be the ID of a child window (of the root) // Then we look for the same property on the child window if (!_glfwGetWindowPropertyX11(*windowFromRoot, supportingWmCheck, XA_WINDOW, (unsigned char**) &windowFromChild)) { XFree(windowFromRoot); return; } _glfwReleaseErrorHandlerX11(); // It should be the ID of that same child window if (*windowFromRoot != *windowFromChild) { XFree(windowFromRoot); XFree(windowFromChild); return; } XFree(windowFromRoot); XFree(windowFromChild); // We are now fairly sure that an EWMH-compliant window manager is running Atom* supportedAtoms; unsigned long atomCount; // Now we need to check the _NET_SUPPORTED property of the root window // It should be a list of supported WM protocol and state atoms atomCount = _glfwGetWindowPropertyX11(_glfw.x11.root, wmSupported, XA_ATOM, (unsigned char**) &supportedAtoms); // See which of the atoms we support that are supported by the WM _glfw.x11.NET_WM_STATE = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_STATE"); _glfw.x11.NET_WM_STATE_ABOVE = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_STATE_ABOVE"); _glfw.x11.NET_WM_STATE_FULLSCREEN = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_STATE_FULLSCREEN"); _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_STATE_MAXIMIZED_VERT"); _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_STATE_MAXIMIZED_HORZ"); _glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_STATE_DEMANDS_ATTENTION"); _glfw.x11.NET_WM_FULLSCREEN_MONITORS = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_FULLSCREEN_MONITORS"); _glfw.x11.NET_WM_WINDOW_TYPE = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_WINDOW_TYPE"); _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL = getSupportedAtom(supportedAtoms, atomCount, "_NET_WM_WINDOW_TYPE_NORMAL"); _glfw.x11.NET_ACTIVE_WINDOW = getSupportedAtom(supportedAtoms, atomCount, "_NET_ACTIVE_WINDOW"); _glfw.x11.NET_FRAME_EXTENTS = getSupportedAtom(supportedAtoms, atomCount, "_NET_FRAME_EXTENTS"); _glfw.x11.NET_REQUEST_FRAME_EXTENTS = getSupportedAtom(supportedAtoms, atomCount, "_NET_REQUEST_FRAME_EXTENTS"); if (supportedAtoms) XFree(supportedAtoms); } // Look for and initialize supported X11 extensions // static GLFWbool initExtensions(void) { _glfw.x11.vidmode.handle = _glfw_dlopen("libXxf86vm.so.1"); if (_glfw.x11.vidmode.handle) { _glfw.x11.vidmode.QueryExtension = (PFN_XF86VidModeQueryExtension) _glfw_dlsym(_glfw.x11.vidmode.handle, "XF86VidModeQueryExtension"); _glfw.x11.vidmode.GetGammaRamp = (PFN_XF86VidModeGetGammaRamp) _glfw_dlsym(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRamp"); _glfw.x11.vidmode.SetGammaRamp = (PFN_XF86VidModeSetGammaRamp) _glfw_dlsym(_glfw.x11.vidmode.handle, "XF86VidModeSetGammaRamp"); _glfw.x11.vidmode.GetGammaRampSize = (PFN_XF86VidModeGetGammaRampSize) _glfw_dlsym(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRampSize"); _glfw.x11.vidmode.available = XF86VidModeQueryExtension(_glfw.x11.display, &_glfw.x11.vidmode.eventBase, &_glfw.x11.vidmode.errorBase); } #if defined(__CYGWIN__) _glfw.x11.xi.handle = _glfw_dlopen("libXi-6.so"); #else _glfw.x11.xi.handle = _glfw_dlopen("libXi.so.6"); #endif if (_glfw.x11.xi.handle) { _glfw.x11.xi.QueryVersion = (PFN_XIQueryVersion) _glfw_dlsym(_glfw.x11.xi.handle, "XIQueryVersion"); _glfw.x11.xi.SelectEvents = (PFN_XISelectEvents) _glfw_dlsym(_glfw.x11.xi.handle, "XISelectEvents"); if (XQueryExtension(_glfw.x11.display, "XInputExtension", &_glfw.x11.xi.majorOpcode, &_glfw.x11.xi.eventBase, &_glfw.x11.xi.errorBase)) { _glfw.x11.xi.major = 2; _glfw.x11.xi.minor = 0; if (XIQueryVersion(_glfw.x11.display, &_glfw.x11.xi.major, &_glfw.x11.xi.minor) == Success) { _glfw.x11.xi.available = GLFW_TRUE; } } } #if defined(__CYGWIN__) _glfw.x11.randr.handle = _glfw_dlopen("libXrandr-2.so"); #else _glfw.x11.randr.handle = _glfw_dlopen("libXrandr.so.2"); #endif if (_glfw.x11.randr.handle) { _glfw.x11.randr.AllocGamma = (PFN_XRRAllocGamma) _glfw_dlsym(_glfw.x11.randr.handle, "XRRAllocGamma"); _glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma) _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeGamma"); _glfw.x11.randr.FreeCrtcInfo = (PFN_XRRFreeCrtcInfo) _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeCrtcInfo"); _glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma) _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeGamma"); _glfw.x11.randr.FreeOutputInfo = (PFN_XRRFreeOutputInfo) _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeOutputInfo"); _glfw.x11.randr.FreeScreenResources = (PFN_XRRFreeScreenResources) _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeScreenResources"); _glfw.x11.randr.GetCrtcGamma = (PFN_XRRGetCrtcGamma) _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetCrtcGamma"); _glfw.x11.randr.GetCrtcGammaSize = (PFN_XRRGetCrtcGammaSize) _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetCrtcGammaSize"); _glfw.x11.randr.GetCrtcInfo = (PFN_XRRGetCrtcInfo) _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetCrtcInfo"); _glfw.x11.randr.GetOutputInfo = (PFN_XRRGetOutputInfo) _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetOutputInfo"); _glfw.x11.randr.GetOutputPrimary = (PFN_XRRGetOutputPrimary) _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetOutputPrimary"); _glfw.x11.randr.GetScreenResourcesCurrent = (PFN_XRRGetScreenResourcesCurrent) _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetScreenResourcesCurrent"); _glfw.x11.randr.QueryExtension = (PFN_XRRQueryExtension) _glfw_dlsym(_glfw.x11.randr.handle, "XRRQueryExtension"); _glfw.x11.randr.QueryVersion = (PFN_XRRQueryVersion) _glfw_dlsym(_glfw.x11.randr.handle, "XRRQueryVersion"); _glfw.x11.randr.SelectInput = (PFN_XRRSelectInput) _glfw_dlsym(_glfw.x11.randr.handle, "XRRSelectInput"); _glfw.x11.randr.SetCrtcConfig = (PFN_XRRSetCrtcConfig) _glfw_dlsym(_glfw.x11.randr.handle, "XRRSetCrtcConfig"); _glfw.x11.randr.SetCrtcGamma = (PFN_XRRSetCrtcGamma) _glfw_dlsym(_glfw.x11.randr.handle, "XRRSetCrtcGamma"); _glfw.x11.randr.UpdateConfiguration = (PFN_XRRUpdateConfiguration) _glfw_dlsym(_glfw.x11.randr.handle, "XRRUpdateConfiguration"); if (XRRQueryExtension(_glfw.x11.display, &_glfw.x11.randr.eventBase, &_glfw.x11.randr.errorBase)) { if (XRRQueryVersion(_glfw.x11.display, &_glfw.x11.randr.major, &_glfw.x11.randr.minor)) { // The GLFW RandR path requires at least version 1.3 if (_glfw.x11.randr.major > 1 || _glfw.x11.randr.minor >= 3) _glfw.x11.randr.available = GLFW_TRUE; } else { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to query RandR version"); } } } if (_glfw.x11.randr.available) { XRRScreenResources* sr = XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root); if (!sr->ncrtc || !XRRGetCrtcGammaSize(_glfw.x11.display, sr->crtcs[0])) { // This is likely an older Nvidia driver with broken gamma support // Flag it as useless and fall back to xf86vm gamma, if available _glfw.x11.randr.gammaBroken = GLFW_TRUE; } if (!sr->ncrtc) { // A system without CRTCs is likely a system with broken RandR // Disable the RandR monitor path and fall back to core functions _glfw.x11.randr.monitorBroken = GLFW_TRUE; } XRRFreeScreenResources(sr); } if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) { XRRSelectInput(_glfw.x11.display, _glfw.x11.root, RROutputChangeNotifyMask); } #if defined(__CYGWIN__) _glfw.x11.xcursor.handle = _glfw_dlopen("libXcursor-1.so"); #else _glfw.x11.xcursor.handle = _glfw_dlopen("libXcursor.so.1"); #endif if (_glfw.x11.xcursor.handle) { _glfw.x11.xcursor.ImageCreate = (PFN_XcursorImageCreate) _glfw_dlsym(_glfw.x11.xcursor.handle, "XcursorImageCreate"); _glfw.x11.xcursor.ImageDestroy = (PFN_XcursorImageDestroy) _glfw_dlsym(_glfw.x11.xcursor.handle, "XcursorImageDestroy"); _glfw.x11.xcursor.ImageLoadCursor = (PFN_XcursorImageLoadCursor) _glfw_dlsym(_glfw.x11.xcursor.handle, "XcursorImageLoadCursor"); } #if defined(__CYGWIN__) _glfw.x11.xinerama.handle = _glfw_dlopen("libXinerama-1.so"); #else _glfw.x11.xinerama.handle = _glfw_dlopen("libXinerama.so.1"); #endif if (_glfw.x11.xinerama.handle) { _glfw.x11.xinerama.IsActive = (PFN_XineramaIsActive) _glfw_dlsym(_glfw.x11.xinerama.handle, "XineramaIsActive"); _glfw.x11.xinerama.QueryExtension = (PFN_XineramaQueryExtension) _glfw_dlsym(_glfw.x11.xinerama.handle, "XineramaQueryExtension"); _glfw.x11.xinerama.QueryScreens = (PFN_XineramaQueryScreens) _glfw_dlsym(_glfw.x11.xinerama.handle, "XineramaQueryScreens"); if (XineramaQueryExtension(_glfw.x11.display, &_glfw.x11.xinerama.major, &_glfw.x11.xinerama.minor)) { if (XineramaIsActive(_glfw.x11.display)) _glfw.x11.xinerama.available = GLFW_TRUE; } } #if defined(__CYGWIN__) _glfw.x11.xrender.handle = _glfw_dlopen("libXrender-1.so"); #else _glfw.x11.xrender.handle = _glfw_dlopen("libXrender.so.1"); #endif if (_glfw.x11.xrender.handle) { _glfw.x11.xrender.QueryExtension = (PFN_XRenderQueryExtension) _glfw_dlsym(_glfw.x11.xrender.handle, "XRenderQueryExtension"); _glfw.x11.xrender.QueryVersion = (PFN_XRenderQueryVersion) _glfw_dlsym(_glfw.x11.xrender.handle, "XRenderQueryVersion"); _glfw.x11.xrender.FindVisualFormat = (PFN_XRenderFindVisualFormat) _glfw_dlsym(_glfw.x11.xrender.handle, "XRenderFindVisualFormat"); if (XRenderQueryExtension(_glfw.x11.display, &_glfw.x11.xrender.errorBase, &_glfw.x11.xrender.eventBase)) { if (XRenderQueryVersion(_glfw.x11.display, &_glfw.x11.xrender.major, &_glfw.x11.xrender.minor)) { _glfw.x11.xrender.available = GLFW_TRUE; } } } _glfw.x11.xkb.major = 1; _glfw.x11.xkb.minor = 0; _glfw.x11.xkb.available = XkbQueryExtension(_glfw.x11.display, &_glfw.x11.xkb.majorOpcode, &_glfw.x11.xkb.eventBase, &_glfw.x11.xkb.errorBase, &_glfw.x11.xkb.major, &_glfw.x11.xkb.minor); if (!_glfw.x11.xkb.available) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to load Xkb extension"); return GLFW_FALSE; } Bool supported; if (XkbSetDetectableAutoRepeat(_glfw.x11.display, True, &supported)) { if (supported) _glfw.x11.xkb.detectable = GLFW_TRUE; } if (!glfw_xkb_set_x11_events_mask()) return GLFW_FALSE; if (!glfw_xkb_create_context(&_glfw.x11.xkb)) return GLFW_FALSE; if (!glfw_xkb_update_x11_keyboard_id(&_glfw.x11.xkb)) return GLFW_FALSE; if (!glfw_xkb_compile_keymap(&_glfw.x11.xkb, NULL)) return GLFW_FALSE; // Detect whether an EWMH-conformant window manager is running detectEWMH(); // 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.ATOM_PAIR = XInternAtom(_glfw.x11.display, "ATOM_PAIR", False); // Custom selection property atom _glfw.x11.GLFW_SELECTION = XInternAtom(_glfw.x11.display, "GLFW_SELECTION", False); // ICCCM standard clipboard atoms _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 _glfw.x11.CLIPBOARD_MANAGER = XInternAtom(_glfw.x11.display, "CLIPBOARD_MANAGER", False); _glfw.x11.SAVE_TARGETS = XInternAtom(_glfw.x11.display, "SAVE_TARGETS", False); // Xdnd (drag and drop) atoms _glfw.x11.XdndAware = XInternAtom(_glfw.x11.display, "XdndAware", False); _glfw.x11.XdndEnter = XInternAtom(_glfw.x11.display, "XdndEnter", False); _glfw.x11.XdndPosition = XInternAtom(_glfw.x11.display, "XdndPosition", False); _glfw.x11.XdndStatus = XInternAtom(_glfw.x11.display, "XdndStatus", False); _glfw.x11.XdndActionCopy = XInternAtom(_glfw.x11.display, "XdndActionCopy", False); _glfw.x11.XdndDrop = XInternAtom(_glfw.x11.display, "XdndDrop", False); _glfw.x11.XdndFinished = XInternAtom(_glfw.x11.display, "XdndFinished", False); _glfw.x11.XdndSelection = XInternAtom(_glfw.x11.display, "XdndSelection", False); _glfw.x11.XdndTypeList = XInternAtom(_glfw.x11.display, "XdndTypeList", False); _glfw.x11.text_uri_list = XInternAtom(_glfw.x11.display, "text/uri-list", False); // ICCCM, EWMH and Motif window property atoms // These can be set safely even without WM support // The EWMH atoms that require WM support are handled in detectEWMH _glfw.x11.WM_PROTOCOLS = XInternAtom(_glfw.x11.display, "WM_PROTOCOLS", False); _glfw.x11.WM_STATE = XInternAtom(_glfw.x11.display, "WM_STATE", False); _glfw.x11.WM_DELETE_WINDOW = XInternAtom(_glfw.x11.display, "WM_DELETE_WINDOW", False); _glfw.x11.NET_WM_ICON = XInternAtom(_glfw.x11.display, "_NET_WM_ICON", False); _glfw.x11.NET_WM_PING = XInternAtom(_glfw.x11.display, "_NET_WM_PING", False); _glfw.x11.NET_WM_PID = XInternAtom(_glfw.x11.display, "_NET_WM_PID", False); _glfw.x11.NET_WM_NAME = XInternAtom(_glfw.x11.display, "_NET_WM_NAME", False); _glfw.x11.NET_WM_ICON_NAME = XInternAtom(_glfw.x11.display, "_NET_WM_ICON_NAME", False); _glfw.x11.NET_WM_BYPASS_COMPOSITOR = XInternAtom(_glfw.x11.display, "_NET_WM_BYPASS_COMPOSITOR", False); _glfw.x11.NET_WM_WINDOW_OPACITY = XInternAtom(_glfw.x11.display, "_NET_WM_WINDOW_OPACITY", False); _glfw.x11.MOTIF_WM_HINTS = XInternAtom(_glfw.x11.display, "_MOTIF_WM_HINTS", False); // The compositing manager selection name contains the screen number { char name[32]; snprintf(name, sizeof(name), "_NET_WM_CM_S%u", _glfw.x11.screen); _glfw.x11.NET_WM_CM_Sx = XInternAtom(_glfw.x11.display, name, False); } return GLFW_TRUE; } // Retrieve system content scale via folklore heuristics // void _glfwGetSystemContentScaleX11(float* xscale, float* yscale, GLFWbool bypass_cache) { // NOTE: Default to the display-wide DPI as we don't currently have a policy // for which monitor a window is considered to be on float xdpi = DisplayWidth(_glfw.x11.display, _glfw.x11.screen) * 25.4f / DisplayWidthMM(_glfw.x11.display, _glfw.x11.screen); float ydpi = DisplayHeight(_glfw.x11.display, _glfw.x11.screen) * 25.4f / DisplayHeightMM(_glfw.x11.display, _glfw.x11.screen); // NOTE: Basing the scale on Xft.dpi where available should provide the most // consistent user experience (matches Qt, Gtk, etc), although not // always the most accurate one char* rms = NULL; char* owned_rms = NULL; if (bypass_cache) { _glfwGetWindowPropertyX11(_glfw.x11.root, _glfw.x11.RESOURCE_MANAGER, XA_STRING, (unsigned char**) &owned_rms); rms = owned_rms; } else { rms = XResourceManagerString(_glfw.x11.display); } if (rms) { XrmDatabase db = XrmGetStringDatabase(rms); if (db) { XrmValue value; char* type = NULL; if (XrmGetResource(db, "Xft.dpi", "Xft.Dpi", &type, &value)) { if (type && strcmp(type, "String") == 0) xdpi = ydpi = atof(value.addr); } XrmDestroyDatabase(db); } XFree(owned_rms); } *xscale = xdpi / 96.f; *yscale = ydpi / 96.f; } // Create a blank cursor for hidden and disabled cursor modes // static Cursor createHiddenCursor(void) { unsigned char pixels[16 * 16 * 4] = { 0 }; GLFWimage image = { 16, 16, pixels }; return _glfwCreateCursorX11(&image, 0, 0); } // Create a helper window for IPC // static Window createHelperWindow(void) { XSetWindowAttributes wa; wa.event_mask = PropertyChangeMask; return XCreateWindow(_glfw.x11.display, _glfw.x11.root, 0, 0, 1, 1, 0, 0, InputOnly, DefaultVisual(_glfw.x11.display, _glfw.x11.screen), CWEventMask, &wa); } // X error handler // static int errorHandler(Display *display, XErrorEvent* event) { _glfw.x11.errorCode = event->error_code; return 0; } ////////////////////////////////////////////////////////////////////////// ////// GLFW internal API ////// ////////////////////////////////////////////////////////////////////////// // Sets the X error handler callback // void _glfwGrabErrorHandlerX11(void) { _glfw.x11.errorCode = Success; XSetErrorHandler(errorHandler); } // Clears the X error handler callback // void _glfwReleaseErrorHandlerX11(void) { // Synchronize to make sure all commands are processed XSync(_glfw.x11.display, False); XSetErrorHandler(NULL); } // Reports the specified error, appending information about the last X error // void _glfwInputErrorX11(int error, const char* message) { char buffer[_GLFW_MESSAGE_SIZE]; XGetErrorText(_glfw.x11.display, _glfw.x11.errorCode, buffer, sizeof(buffer)); _glfwInputError(error, "%s: %s", message, buffer); } // Creates a native cursor object from the specified image and hotspot // Cursor _glfwCreateCursorX11(const GLFWimage* image, int xhot, int yhot) { int i; Cursor cursor; if (!_glfw.x11.xcursor.handle) return None; XcursorImage* native = XcursorImageCreate(image->width, image->height); if (native == NULL) return None; native->xhot = xhot; native->yhot = yhot; unsigned char* source = (unsigned char*) image->pixels; XcursorPixel* target = native->pixels; for (i = 0; i < image->width * image->height; i++, target++, source += 4) { unsigned int alpha = source[3]; *target = (alpha << 24) | ((unsigned char) ((source[0] * alpha) / 255) << 16) | ((unsigned char) ((source[1] * alpha) / 255) << 8) | ((unsigned char) ((source[2] * alpha) / 255) << 0); } cursor = XcursorImageLoadCursor(_glfw.x11.display, native); XcursorImageDestroy(native); return cursor; } ////////////////////////////////////////////////////////////////////////// ////// GLFW platform API ////// ////////////////////////////////////////////////////////////////////////// int _glfwPlatformInit(void) { XInitThreads(); XrmInitialize(); if (pipe2(_glfw.x11.eventLoopData.wakeupFds, O_CLOEXEC | O_NONBLOCK) != 0) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: failed to create self pipe"); return GLFW_FALSE; } _glfw.x11.display = XOpenDisplay(NULL); if (!_glfw.x11.display) { const char* display = getenv("DISPLAY"); if (display) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to open display %s", display); } else { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: The DISPLAY environment variable is missing"); } return GLFW_FALSE; } initPollData(&_glfw.x11.eventLoopData, _glfw.x11.eventLoopData.wakeupFds[0], ConnectionNumber(_glfw.x11.display)); glfw_dbus_init(&_glfw.x11.dbus, &_glfw.x11.eventLoopData); _glfw.x11.screen = DefaultScreen(_glfw.x11.display); _glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen); _glfw.x11.context = XUniqueContext(); _glfw.x11.RESOURCE_MANAGER = XInternAtom(_glfw.x11.display, "RESOURCE_MANAGER", True); XSelectInput(_glfw.x11.display, _glfw.x11.root, PropertyChangeMask); _glfwGetSystemContentScaleX11(&_glfw.x11.contentScaleX, &_glfw.x11.contentScaleY, GLFW_FALSE); if (!initExtensions()) return GLFW_FALSE; _glfw.x11.helperWindowHandle = createHelperWindow(); _glfw.x11.hiddenCursorHandle = createHiddenCursor(); #if defined(__linux__) if (_glfw.hints.init.enableJoysticks) { if (!_glfwInitJoysticksLinux()) return GLFW_FALSE; if (_glfw.linjs.inotify > 0) addWatch(&_glfw.x11.eventLoopData, "joystick", _glfw.linjs.inotify, POLLIN, 1, NULL, NULL); } #endif _glfwInitTimerPOSIX(); _glfwPollMonitorsX11(); return GLFW_TRUE; } void _glfwPlatformTerminate(void) { if (_glfw.x11.helperWindowHandle) { if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.CLIPBOARD) == _glfw.x11.helperWindowHandle) { _glfwPushSelectionToManagerX11(); } XDestroyWindow(_glfw.x11.display, _glfw.x11.helperWindowHandle); _glfw.x11.helperWindowHandle = None; } if (_glfw.x11.hiddenCursorHandle) { XFreeCursor(_glfw.x11.display, _glfw.x11.hiddenCursorHandle); _glfw.x11.hiddenCursorHandle = (Cursor) 0; } glfw_xkb_release(&_glfw.x11.xkb); glfw_dbus_terminate(&_glfw.x11.dbus); free(_glfw.x11.primarySelectionString); free(_glfw.x11.clipboardString); if (_glfw.x11.display) { XCloseDisplay(_glfw.x11.display); _glfw.x11.display = NULL; _glfw.x11.eventLoopData.fds[0].fd = -1; } if (_glfw.x11.xcursor.handle) { _glfw_dlclose(_glfw.x11.xcursor.handle); _glfw.x11.xcursor.handle = NULL; } if (_glfw.x11.randr.handle) { _glfw_dlclose(_glfw.x11.randr.handle); _glfw.x11.randr.handle = NULL; } if (_glfw.x11.xinerama.handle) { _glfw_dlclose(_glfw.x11.xinerama.handle); _glfw.x11.xinerama.handle = NULL; } if (_glfw.x11.xrender.handle) { _glfw_dlclose(_glfw.x11.xrender.handle); _glfw.x11.xrender.handle = NULL; } if (_glfw.x11.vidmode.handle) { _glfw_dlclose(_glfw.x11.vidmode.handle); _glfw.x11.vidmode.handle = NULL; } if (_glfw.x11.xi.handle) { _glfw_dlclose(_glfw.x11.xi.handle); _glfw.x11.xi.handle = NULL; } // NOTE: These need to be unloaded after XCloseDisplay, as they register // cleanup callbacks that get called by that function _glfwTerminateEGL(); _glfwTerminateGLX(); #if defined(__linux__) _glfwTerminateJoysticksLinux(); #endif closeFds(_glfw.x11.eventLoopData.wakeupFds, sizeof(_glfw.x11.eventLoopData.wakeupFds)/sizeof(_glfw.x11.eventLoopData.wakeupFds[0])); } const char* _glfwPlatformGetVersionString(void) { return _GLFW_VERSION_NUMBER " X11 GLX EGL" #if defined(_POSIX_TIMERS) && defined(_POSIX_MONOTONIC_CLOCK) " clock_gettime" #else " gettimeofday" #endif #if defined(__linux__) " evdev" #endif #if defined(_GLFW_BUILD_DLL) " shared" #endif ; }