2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 //#include <termios.h>
21 //#include <sys/ioctl.h>
22 //#include <sys/stat.h>
31 #include <X11/Xutil.h>
34 #include <X11/keysym.h>
35 #include <X11/cursorfont.h>
37 #include <X11/extensions/XShm.h>
38 #if !defined(__APPLE__) && !defined(__MACH__)
39 #include <X11/extensions/xf86dga.h>
41 #include <X11/extensions/xf86vmode.h>
45 // Tell startup code that we have a client
46 int cl_available = true;
49 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
50 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
51 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
52 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
53 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
54 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
56 //GLX_ARB_get_proc_address
57 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
59 static dllfunction_t getprocaddressfuncs[] =
61 {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
65 //GLX_SGI_swap_control
66 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
68 static dllfunction_t swapcontrolfuncs[] =
70 {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
74 static Display *vidx11_display = NULL;
75 static int vidx11_screen;
77 static GLXContext ctx = NULL;
79 Atom wm_delete_window_atom;
81 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
82 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
83 PointerMotionMask | ButtonMotionMask)
84 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
85 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
89 static qboolean mouse_avail = true;
90 static qboolean vid_usingmouse = false;
91 static qboolean vid_usemouse = false;
92 static qboolean vid_usingvsync = false;
93 static qboolean vid_usevsync = false;
94 static qboolean ignoremousemove = false;
95 static float mouse_x, mouse_y;
96 static int p_mouse_x, p_mouse_y;
99 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
100 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
103 qboolean vidmode_ext = false;
105 static int win_x, win_y;
107 static int scr_width, scr_height;
109 static XF86VidModeModeInfo **vidmodes;
110 static int num_vidmodes;
111 static qboolean vid_isfullscreen = false;
113 static Visual *vidx11_visual;
114 static Colormap vidx11_colormap;
116 /*-----------------------------------------------------------------------*/
118 static int XLateKey(XKeyEvent *ev, char *ascii)
122 KeySym keysym, shifted;
124 keysym = XLookupKeysym (ev, 0);
125 XLookupString(ev, buf, sizeof buf, &shifted, 0);
130 case XK_KP_Page_Up: key = K_KP_PGUP; break;
131 case XK_Page_Up: key = K_PGUP; break;
133 case XK_KP_Page_Down: key = K_KP_PGDN; break;
134 case XK_Page_Down: key = K_PGDN; break;
136 case XK_KP_Home: key = K_KP_HOME; break;
137 case XK_Home: key = K_HOME; break;
139 case XK_KP_End: key = K_KP_END; break;
140 case XK_End: key = K_END; break;
142 case XK_KP_Left: key = K_KP_LEFTARROW; break;
143 case XK_Left: key = K_LEFTARROW; break;
145 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
146 case XK_Right: key = K_RIGHTARROW; break;
148 case XK_KP_Down: key = K_KP_DOWNARROW; break;
149 case XK_Down: key = K_DOWNARROW; break;
151 case XK_KP_Up: key = K_KP_UPARROW; break;
152 case XK_Up: key = K_UPARROW; break;
154 case XK_Escape: key = K_ESCAPE; break;
156 case XK_KP_Enter: key = K_KP_ENTER; break;
157 case XK_Return: key = K_ENTER; break;
159 case XK_Tab: key = K_TAB; break;
161 case XK_F1: key = K_F1; break;
163 case XK_F2: key = K_F2; break;
165 case XK_F3: key = K_F3; break;
167 case XK_F4: key = K_F4; break;
169 case XK_F5: key = K_F5; break;
171 case XK_F6: key = K_F6; break;
173 case XK_F7: key = K_F7; break;
175 case XK_F8: key = K_F8; break;
177 case XK_F9: key = K_F9; break;
179 case XK_F10: key = K_F10; break;
181 case XK_F11: key = K_F11; break;
183 case XK_F12: key = K_F12; break;
185 case XK_BackSpace: key = K_BACKSPACE; break;
187 case XK_KP_Delete: key = K_KP_DEL; break;
188 case XK_Delete: key = K_DEL; break;
190 case XK_Pause: key = K_PAUSE; break;
193 case XK_Shift_R: key = K_SHIFT; break;
197 case XK_Control_R: key = K_CTRL; break;
202 case XK_Meta_R: key = K_ALT; break;
204 case XK_KP_Begin: key = K_KP_5; break;
206 case XK_Insert:key = K_INS; break;
207 case XK_KP_Insert: key = K_KP_INS; break;
209 case XK_KP_Multiply: key = '*'; break;
210 case XK_KP_Add: key = K_KP_PLUS; break;
211 case XK_KP_Subtract: key = K_KP_MINUS; break;
212 case XK_KP_Divide: key = K_KP_SLASH; break;
215 if (keysym < 32 && keysym > 126)
218 if (keysym >= 'A' && keysym <= 'Z')
219 key = keysym - 'A' + 'a';
229 static Cursor CreateNullCursor(Display *display, Window root)
237 cursormask = XCreatePixmap(display, root, 1, 1, 1);
238 xgc.function = GXclear;
239 gc = XCreateGC(display, cursormask, GCFunction, &xgc);
240 XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
241 dummycolour.pixel = 0;
243 dummycolour.flags = 04;
244 cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
245 XFreePixmap(display,cursormask);
250 static void IN_Activate (qboolean grab)
256 if (!vid_usingmouse && mouse_avail && win)
258 XWindowAttributes attribs_1;
259 XSetWindowAttributes attribs_2;
261 XGetWindowAttributes(vidx11_display, win, &attribs_1);
262 attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
263 XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
266 XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
268 XGrabPointer(vidx11_display, win, True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
273 int MajorVersion, MinorVersion;
275 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
277 // unable to query, probably not supported
278 Con_Print( "Failed to detect XF86DGA Mouse\n" );
279 Cvar_SetValueQuick(&vid_dga, 0);
280 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
284 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
285 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
290 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
292 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
294 mouse_x = mouse_y = 0;
295 ignoremousemove = true;
296 vid_usingmouse = true;
305 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
308 XUngrabPointer(vidx11_display, CurrentTime);
309 XUngrabKeyboard(vidx11_display, CurrentTime);
313 XUndefineCursor(vidx11_display, win);
315 ignoremousemove = true;
316 vid_usingmouse = false;
321 static void HandleEvents(void)
326 qboolean dowarp = false;
331 while (XPending(vidx11_display))
333 XNextEvent(vidx11_display, &event);
339 key = XLateKey (&event.xkey, &ascii);
340 Key_Event(key, ascii, true);
345 key = XLateKey (&event.xkey, &ascii);
346 Key_Event(key, ascii, false);
354 if (vid_dga.integer == 1)
356 mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
357 mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
363 if (!event.xmotion.send_event)
365 mouse_x += event.xmotion.x - p_mouse_x;
366 mouse_y += event.xmotion.y - p_mouse_y;
367 if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
370 p_mouse_x = event.xmotion.x;
371 p_mouse_y = event.xmotion.y;
375 // ui_mouseupdate(event.xmotion.x, event.xmotion.y);
379 // mouse button pressed
380 switch(event.xbutton.button)
383 Key_Event(K_MOUSE1, 0, true);
386 Key_Event(K_MOUSE3, 0, true);
389 Key_Event(K_MOUSE2, 0, true);
392 Key_Event(K_MWHEELUP, 0, true);
395 Key_Event(K_MWHEELDOWN, 0, true);
398 Key_Event(K_MOUSE4, 0, true);
401 Key_Event(K_MOUSE5, 0, true);
404 Key_Event(K_MOUSE6, 0, true);
407 Key_Event(K_MOUSE7, 0, true);
410 Key_Event(K_MOUSE8, 0, true);
413 Key_Event(K_MOUSE9, 0, true);
416 Key_Event(K_MOUSE10, 0, true);
419 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-12 expected\n", event.xbutton.button);
425 // mouse button released
426 switch(event.xbutton.button)
429 Key_Event(K_MOUSE1, 0, false);
432 Key_Event(K_MOUSE3, 0, false);
435 Key_Event(K_MOUSE2, 0, false);
438 Key_Event(K_MWHEELUP, 0, false);
441 Key_Event(K_MWHEELDOWN, 0, false);
444 Key_Event(K_MOUSE4, 0, false);
447 Key_Event(K_MOUSE5, 0, false);
450 Key_Event(K_MOUSE6, 0, false);
453 Key_Event(K_MOUSE7, 0, false);
456 Key_Event(K_MOUSE8, 0, false);
459 Key_Event(K_MOUSE9, 0, false);
462 Key_Event(K_MOUSE10, 0, false);
465 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-12 expected\n", event.xbutton.button);
472 win_x = event.xcreatewindow.x;
473 win_y = event.xcreatewindow.y;
476 case ConfigureNotify:
477 // window changed size/location
478 win_x = event.xconfigure.x;
479 win_y = event.xconfigure.y;
482 // window has been destroyed
486 // window manager messages
487 if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
493 vid_activewindow = false;
494 VID_RestoreSystemGamma();
497 // window iconified/rolledup/whatever
499 vid_activewindow = false;
500 VID_RestoreSystemGamma();
503 // window is now the input focus
504 vid_activewindow = true;
507 // window is no longer the input focus
508 vid_activewindow = false;
509 VID_RestoreSystemGamma();
512 // mouse entered window
522 /* move the mouse to the window center again */
523 p_mouse_x = scr_width / 2;
524 p_mouse_y = scr_height / 2;
525 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
528 // if told to ignore one mouse move, do so
531 ignoremousemove = false;
537 static void *prjobj = NULL;
539 static void GL_CloseLibrary(void)
545 qglXGetProcAddressARB = NULL;
548 gl_platformextensions = "";
551 static int GL_OpenLibrary(const char *name)
553 Con_Printf("Loading OpenGL driver %s\n", name);
555 if (!(prjobj = dlopen(name, RTLD_LAZY)))
557 Con_Printf("Unable to open symbol list for %s\n", name);
560 strcpy(gl_driver, name);
564 void *GL_GetProcAddress(const char *name)
567 if (qglXGetProcAddressARB != NULL)
568 p = (void *) qglXGetProcAddressARB(name);
570 p = (void *) dlsym(prjobj, name);
574 void VID_Shutdown(void)
576 if (!ctx || !vidx11_display)
582 VID_RestoreSystemGamma();
584 // FIXME: glXDestroyContext here?
585 if (vid_isfullscreen)
586 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[0]);
588 XDestroyWindow(vidx11_display, win);
589 XCloseDisplay(vidx11_display);
592 vid_isfullscreen = false;
593 vidx11_display = NULL;
601 void signal_handler(int sig)
603 Con_Printf("Received signal %d, exiting...\n", sig);
604 VID_RestoreSystemGamma();
611 signal(SIGHUP, signal_handler);
612 signal(SIGINT, signal_handler);
613 signal(SIGQUIT, signal_handler);
614 signal(SIGILL, signal_handler);
615 signal(SIGTRAP, signal_handler);
616 signal(SIGIOT, signal_handler);
617 signal(SIGBUS, signal_handler);
618 signal(SIGFPE, signal_handler);
619 signal(SIGSEGV, signal_handler);
620 signal(SIGTERM, signal_handler);
628 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
632 *height = scr_height;
635 void VID_Finish (void)
637 vid_usevsync = vid_vsync.integer && !cls.timedemo && gl_videosyncavailable;
638 if (vid_usingvsync != vid_usevsync && gl_videosyncavailable)
640 vid_usingvsync = vid_usevsync;
641 if (qglXSwapIntervalSGI (vid_usevsync))
642 Con_Print("glXSwapIntervalSGI didn't accept the vid_vsync change, it will take effect on next vid_restart (GLX_SGI_swap_control does not allow turning off vsync)\n");
645 // handle the mouse state when windowed if that's changed
646 vid_usemouse = false;
647 if (vid_mouse.integer && !key_consoleactive && !cls.demoplayback)
649 if (!vid_activewindow)
650 vid_usemouse = false;
651 if (vid_isfullscreen)
653 IN_Activate(vid_usemouse);
655 if (r_render.integer)
657 if (r_speeds.integer || gl_finish.integer)
659 qglXSwapBuffers(vidx11_display, win);
663 int VID_SetGamma(unsigned short *ramps)
665 return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
668 int VID_GetGamma(unsigned short *ramps)
670 return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
676 Cvar_RegisterVariable (&vid_dga);
677 Cvar_RegisterVariable (&vid_dga_mouseaccel);
679 InitSig(); // trap evil signals
680 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
681 if (COM_CheckParm ("-nomouse") || COM_CheckParm("-safe"))
685 void VID_BuildGLXAttrib(int *attrib, int stencil)
687 *attrib++ = GLX_RGBA;
688 *attrib++ = GLX_RED_SIZE;*attrib++ = 1;
689 *attrib++ = GLX_GREEN_SIZE;*attrib++ = 1;
690 *attrib++ = GLX_BLUE_SIZE;*attrib++ = 1;
691 *attrib++ = GLX_DOUBLEBUFFER;
692 *attrib++ = GLX_DEPTH_SIZE;*attrib++ = 1;
693 // if stencil is enabled, ask for alpha too
696 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
697 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 1;
702 int VID_InitMode(int fullscreen, int width, int height, int bpp)
706 XSetWindowAttributes attr;
709 XVisualInfo *visinfo;
710 int MajorVersion, MinorVersion;
711 const char *drivername;
713 #if defined(__APPLE__) && defined(__MACH__)
714 drivername = "/usr/X11R6/lib/libGL.1.dylib";
716 drivername = "libGL.so.1";
718 // COMMANDLINEOPTION: Linux GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
719 // COMMANDLINEOPTION: BSD GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
720 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
721 i = COM_CheckParm("-gl_driver");
722 if (i && i < com_argc - 1)
723 drivername = com_argv[i + 1];
724 if (!GL_OpenLibrary(drivername))
726 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
730 if (!(vidx11_display = XOpenDisplay(NULL)))
732 Con_Print("Couldn't open the X display\n");
736 vidx11_screen = DefaultScreen(vidx11_display);
737 root = RootWindow(vidx11_display, vidx11_screen);
739 // Get video mode list
740 MajorVersion = MinorVersion = 0;
741 if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
745 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
749 if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
750 || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
751 || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
752 || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL
753 || (qglXQueryExtensionsString = GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
755 Con_Printf("glX functions not found in %s\n", gl_driver);
759 VID_BuildGLXAttrib(attrib, bpp == 32);
760 visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
763 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
769 int best_fit, best_dist, dist, x, y;
771 // Are we going fullscreen? If so, let's change video mode
774 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
778 for (i = 0; i < num_vidmodes; i++)
780 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
783 x = width - vidmodes[i]->hdisplay;
784 y = height - vidmodes[i]->vdisplay;
785 dist = (x * x) + (y * y);
786 if (dist < best_dist)
795 // LordHavoc: changed from ActualWidth/ActualHeight =,
796 // to width/height =, so the window will take the full area of
798 width = vidmodes[best_fit]->hdisplay;
799 height = vidmodes[best_fit]->vdisplay;
801 // change to the mode
802 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
803 vid_isfullscreen = true;
805 // Move the viewport to top left
806 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
813 // LordHavoc: save the visual for use in gamma ramp settings later
814 vidx11_visual = visinfo->visual;
816 /* window attributes */
817 attr.background_pixel = 0;
818 attr.border_pixel = 0;
819 // LordHavoc: save the colormap for later, too
820 vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
821 attr.event_mask = X_MASK;
822 if (vid_isfullscreen)
824 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
825 attr.override_redirect = True;
826 attr.backing_store = NotUseful;
827 attr.save_under = False;
830 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
832 win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
833 XStoreName(vidx11_display, win, gamename);
834 XMapWindow(vidx11_display, win);
836 // LordHavoc: making the close button on a window do the right thing
837 // seems to involve this mess, sigh...
838 wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
839 XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
841 if (vid_isfullscreen)
843 XMoveWindow(vidx11_display, win, 0, 0);
844 XRaiseWindow(vidx11_display, win);
845 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
846 XFlush(vidx11_display);
847 // Move the viewport to top left
848 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
851 //XSync(vidx11_display, False);
853 ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
855 Sys_Error ("glXCreateContext failed\n");
857 if (!qglXMakeCurrent(vidx11_display, win, ctx))
858 Sys_Error ("glXMakeCurrent failed\n");
860 XSync(vidx11_display, False);
865 if ((qglGetString = GL_GetProcAddress("glGetString")) == NULL)
866 Sys_Error("glGetString not found in %s", gl_driver);
868 gl_renderer = qglGetString(GL_RENDERER);
869 gl_vendor = qglGetString(GL_VENDOR);
870 gl_version = qglGetString(GL_VERSION);
871 gl_extensions = qglGetString(GL_EXTENSIONS);
873 gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
875 gl_videosyncavailable = false;
877 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
878 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
879 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
880 GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
881 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
882 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
883 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
884 gl_videosyncavailable = GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
886 vid_usingmouse = false;
887 vid_usingvsync = false;
888 ignoremousemove = true;
890 vid_activewindow = true;
895 void Sys_SendKeyEvents(void)
904 in_mouse_x = mouse_x;
905 in_mouse_y = mouse_y;