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.
25 #include <X11/Xutil.h>
28 #include <X11/keysym.h>
29 #include <X11/cursorfont.h>
31 #include <X11/extensions/XShm.h>
32 #if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
33 #include <X11/extensions/xf86dga.h>
35 #include <X11/extensions/xf86vmode.h>
39 // Tell startup code that we have a client
40 int cl_available = true;
42 // note: if we used the XRandR extension we could support refresh rates
43 qboolean vid_supportrefreshrate = false;
46 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
47 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
48 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
49 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
50 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
51 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
53 //GLX_ARB_get_proc_address
54 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
56 static dllfunction_t getprocaddressfuncs[] =
58 {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
62 //GLX_SGI_swap_control
63 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
65 static dllfunction_t swapcontrolfuncs[] =
67 {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
71 static Display *vidx11_display = NULL;
72 static int vidx11_screen;
74 static GLXContext ctx = NULL;
76 Atom wm_delete_window_atom;
78 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
79 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
80 PointerMotionMask | ButtonMotionMask)
81 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
82 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
86 static qboolean mouse_avail = true;
87 static qboolean vid_usingmouse = false;
88 static qboolean vid_usingvsync = false;
89 static qboolean vid_usevsync = false;
90 static qboolean vid_x11_hardwaregammasupported = false;
91 static qboolean vid_x11_dgasupported = false;
92 static int vid_x11_gammarampsize = 0;
93 static float mouse_x, mouse_y;
94 static int p_mouse_x, p_mouse_y;
96 #if !defined(__APPLE__) && !defined(SUNOS)
97 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "1", "make use of DGA mouse input"};
100 qboolean vidmode_ext = false;
102 static int win_x, win_y;
104 static XF86VidModeModeInfo init_vidmode;
105 static qboolean vid_isfullscreen = false;
107 static Visual *vidx11_visual;
108 static Colormap vidx11_colormap;
110 /*-----------------------------------------------------------------------*/
112 static int XLateKey(XKeyEvent *ev, char *ascii)
116 KeySym keysym, shifted;
118 keysym = XLookupKeysym (ev, 0);
119 XLookupString(ev, buf, sizeof buf, &shifted, 0);
124 case XK_KP_Page_Up: key = K_KP_PGUP; break;
125 case XK_Page_Up: key = K_PGUP; break;
127 case XK_KP_Page_Down: key = K_KP_PGDN; break;
128 case XK_Page_Down: key = K_PGDN; break;
130 case XK_KP_Home: key = K_KP_HOME; break;
131 case XK_Home: key = K_HOME; break;
133 case XK_KP_End: key = K_KP_END; break;
134 case XK_End: key = K_END; break;
136 case XK_KP_Left: key = K_KP_LEFTARROW; break;
137 case XK_Left: key = K_LEFTARROW; break;
139 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
140 case XK_Right: key = K_RIGHTARROW; break;
142 case XK_KP_Down: key = K_KP_DOWNARROW; break;
143 case XK_Down: key = K_DOWNARROW; break;
145 case XK_KP_Up: key = K_KP_UPARROW; break;
146 case XK_Up: key = K_UPARROW; break;
148 case XK_Escape: key = K_ESCAPE; break;
150 case XK_KP_Enter: key = K_KP_ENTER; break;
151 case XK_Return: key = K_ENTER; break;
153 case XK_Tab: key = K_TAB; break;
155 case XK_F1: key = K_F1; break;
157 case XK_F2: key = K_F2; break;
159 case XK_F3: key = K_F3; break;
161 case XK_F4: key = K_F4; break;
163 case XK_F5: key = K_F5; break;
165 case XK_F6: key = K_F6; break;
167 case XK_F7: key = K_F7; break;
169 case XK_F8: key = K_F8; break;
171 case XK_F9: key = K_F9; break;
173 case XK_F10: key = K_F10; break;
175 case XK_F11: key = K_F11; break;
177 case XK_F12: key = K_F12; break;
179 case XK_BackSpace: key = K_BACKSPACE; break;
181 case XK_KP_Delete: key = K_KP_DEL; break;
182 case XK_Delete: key = K_DEL; break;
184 case XK_Pause: key = K_PAUSE; break;
187 case XK_Shift_R: key = K_SHIFT; break;
191 case XK_Control_R: key = K_CTRL; break;
195 case XK_ISO_Level3_Shift:
197 case XK_Meta_R: key = K_ALT; break;
199 case XK_KP_Begin: key = K_KP_5; break;
201 case XK_Insert:key = K_INS; break;
202 case XK_KP_Insert: key = K_KP_INS; break;
204 case XK_KP_Multiply: key = K_KP_MULTIPLY; break;
205 case XK_KP_Add: key = K_KP_PLUS; break;
206 case XK_KP_Subtract: key = K_KP_MINUS; break;
207 case XK_KP_Divide: key = K_KP_SLASH; break;
209 case XK_section: key = '~'; break;
215 if (keysym >= 'A' && keysym <= 'Z')
216 key = keysym - 'A' + 'a';
226 static Cursor CreateNullCursor(Display *display, Window root)
234 cursormask = XCreatePixmap(display, root, 1, 1, 1);
235 xgc.function = GXclear;
236 gc = XCreateGC(display, cursormask, GCFunction, &xgc);
237 XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
238 dummycolour.pixel = 0;
240 dummycolour.flags = 04;
241 cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
242 XFreePixmap(display,cursormask);
247 static void IN_Activate (qboolean grab)
253 if (!vid_usingmouse && mouse_avail && win)
255 XWindowAttributes attribs_1;
256 XSetWindowAttributes attribs_2;
258 XGetWindowAttributes(vidx11_display, win, &attribs_1);
259 attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
260 XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
263 XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
265 XGrabPointer(vidx11_display, win, True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
267 #if !defined(__APPLE__) && !defined(SUNOS)
268 if (vid_dgamouse.integer && vid_x11_dgasupported)
270 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
271 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
275 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
277 if (vid_grabkeyboard.integer || vid_isfullscreen)
278 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
280 mouse_x = mouse_y = 0;
281 cl_ignoremousemove = true;
282 vid_usingmouse = true;
289 #if !defined(__APPLE__) && !defined(SUNOS)
290 if (vid_x11_dgasupported)
291 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
294 XUngrabPointer(vidx11_display, CurrentTime);
295 XUngrabKeyboard(vidx11_display, CurrentTime);
299 XUndefineCursor(vidx11_display, win);
301 cl_ignoremousemove = true;
302 vid_usingmouse = false;
307 static keynum_t buttonremap[18] =
329 static void HandleEvents(void)
334 qboolean dowarp = false;
339 while (XPending(vidx11_display))
341 XNextEvent(vidx11_display, &event);
347 key = XLateKey (&event.xkey, &ascii);
348 Key_Event(key, ascii, true);
353 key = XLateKey (&event.xkey, &ascii);
354 Key_Event(key, ascii, false);
361 #if !defined(__APPLE__) && !defined(SUNOS)
362 if (vid_dgamouse.integer == 1 && vid_x11_dgasupported)
364 mouse_x += event.xmotion.x_root;
365 mouse_y += event.xmotion.y_root;
371 if (!event.xmotion.send_event)
373 mouse_x += event.xmotion.x - p_mouse_x;
374 mouse_y += event.xmotion.y - p_mouse_y;
375 if (abs(vid.width/2 - event.xmotion.x) > vid.width / 4 || abs(vid.height/2 - event.xmotion.y) > vid.height / 4)
378 p_mouse_x = event.xmotion.x;
379 p_mouse_y = event.xmotion.y;
383 // ui_mouseupdate(event.xmotion.x, event.xmotion.y);
387 // mouse button pressed
388 if (event.xbutton.button <= 18)
389 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
391 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
395 // mouse button released
396 if (event.xbutton.button <= 18)
397 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
399 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
404 win_x = event.xcreatewindow.x;
405 win_y = event.xcreatewindow.y;
408 case ConfigureNotify:
409 // window changed size/location
410 win_x = event.xconfigure.x;
411 win_y = event.xconfigure.y;
414 // window has been destroyed
418 // window manager messages
419 if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
425 VID_RestoreSystemGamma();
428 // window iconified/rolledup/whatever
430 VID_RestoreSystemGamma();
433 // window is now the input focus
434 vid_activewindow = true;
437 // window is no longer the input focus
438 vid_activewindow = false;
439 VID_RestoreSystemGamma();
442 // mouse entered window
452 /* move the mouse to the window center again */
453 p_mouse_x = vid.width / 2;
454 p_mouse_y = vid.height / 2;
455 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
459 static void *prjobj = NULL;
461 static void GL_CloseLibrary(void)
467 qglXGetProcAddressARB = NULL;
470 gl_platformextensions = "";
473 static int GL_OpenLibrary(const char *name)
475 Con_Printf("Loading OpenGL driver %s\n", name);
477 if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
479 Con_Printf("Unable to open symbol list for %s\n", name);
482 strlcpy(gl_driver, name, sizeof(gl_driver));
486 void *GL_GetProcAddress(const char *name)
489 if (qglXGetProcAddressARB != NULL)
490 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
492 p = (void *) dlsym(prjobj, name);
496 void VID_Shutdown(void)
498 if (!ctx || !vidx11_display)
504 VID_RestoreSystemGamma();
506 // FIXME: glXDestroyContext here?
507 if (vid_isfullscreen)
508 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
510 XDestroyWindow(vidx11_display, win);
511 XCloseDisplay(vidx11_display);
514 vid_isfullscreen = false;
515 vidx11_display = NULL;
523 void signal_handler(int sig)
525 Con_Printf("Received signal %d, exiting...\n", sig);
526 VID_RestoreSystemGamma();
532 signal(SIGHUP, signal_handler);
533 signal(SIGINT, signal_handler);
534 signal(SIGQUIT, signal_handler);
535 signal(SIGILL, signal_handler);
536 signal(SIGTRAP, signal_handler);
537 signal(SIGIOT, signal_handler);
538 signal(SIGBUS, signal_handler);
539 signal(SIGFPE, signal_handler);
540 signal(SIGSEGV, signal_handler);
541 signal(SIGTERM, signal_handler);
544 void VID_Finish (qboolean allowmousegrab)
546 qboolean vid_usemouse;
548 vid_usevsync = vid_vsync.integer && !cls.timedemo && gl_videosyncavailable;
549 if (vid_usingvsync != vid_usevsync && gl_videosyncavailable)
551 vid_usingvsync = vid_usevsync;
552 if (qglXSwapIntervalSGI (vid_usevsync))
553 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");
556 // handle the mouse state when windowed if that's changed
557 vid_usemouse = false;
558 if (allowmousegrab && vid_mouse.integer && !key_consoleactive && (key_dest != key_game || !cls.demoplayback))
560 if (!vid_activewindow)
561 vid_usemouse = false;
562 if (vid_isfullscreen)
564 IN_Activate(vid_usemouse);
566 if (r_render.integer)
569 if (r_speeds.integer || gl_finish.integer)
571 qglFinish();CHECKGLERROR
573 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
576 if (vid_x11_hardwaregammasupported)
577 VID_UpdateGamma(false, vid_x11_gammarampsize);
580 int VID_SetGamma(unsigned short *ramps, int rampsize)
582 return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
585 int VID_GetGamma(unsigned short *ramps, int rampsize)
587 return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
592 #if !defined(__APPLE__) && !defined(SUNOS)
593 Cvar_RegisterVariable (&vid_dgamouse);
595 InitSig(); // trap evil signals
596 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
597 if (COM_CheckParm ("-nomouse"))
601 void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer)
603 *attrib++ = GLX_RGBA;
604 *attrib++ = GLX_RED_SIZE;*attrib++ = 1;
605 *attrib++ = GLX_GREEN_SIZE;*attrib++ = 1;
606 *attrib++ = GLX_BLUE_SIZE;*attrib++ = 1;
607 *attrib++ = GLX_DOUBLEBUFFER;
608 *attrib++ = GLX_DEPTH_SIZE;*attrib++ = 1;
609 // if stencil is enabled, ask for alpha too
612 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
613 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 1;
616 *attrib++ = GLX_STEREO;
620 int VID_InitMode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer)
624 XSetWindowAttributes attr;
627 XVisualInfo *visinfo;
628 int MajorVersion, MinorVersion;
629 const char *drivername;
631 #if defined(__APPLE__) && defined(__MACH__)
632 drivername = "/usr/X11R6/lib/libGL.1.dylib";
634 drivername = "libGL.so.1";
636 // 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
637 // 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
638 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
639 i = COM_CheckParm("-gl_driver");
640 if (i && i < com_argc - 1)
641 drivername = com_argv[i + 1];
642 if (!GL_OpenLibrary(drivername))
644 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
648 if (!(vidx11_display = XOpenDisplay(NULL)))
650 Con_Print("Couldn't open the X display\n");
654 vidx11_screen = DefaultScreen(vidx11_display);
655 root = RootWindow(vidx11_display, vidx11_screen);
657 // Get video mode list
658 MajorVersion = MinorVersion = 0;
659 if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
663 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
667 if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
668 || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
669 || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
670 || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
671 || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
672 || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
674 Con_Printf("glX functions not found in %s\n", gl_driver);
678 VID_BuildGLXAttrib(attrib, bpp == 32, stereobuffer);
679 visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
682 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
688 int best_fit, best_dist, dist, x, y;
690 // Are we going fullscreen? If so, let's change video mode
693 XF86VidModeModeLine *current_vidmode;
694 XF86VidModeModeInfo **vidmodes;
697 // This nice hack comes from the SDL source code
698 current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
699 XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
701 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
705 for (i = 0; i < num_vidmodes; i++)
707 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
710 x = width - vidmodes[i]->hdisplay;
711 y = height - vidmodes[i]->vdisplay;
712 dist = (x * x) + (y * y);
713 if (dist < best_dist)
722 // LordHavoc: changed from ActualWidth/ActualHeight =,
723 // to width/height =, so the window will take the full area of
725 width = vidmodes[best_fit]->hdisplay;
726 height = vidmodes[best_fit]->vdisplay;
728 // change to the mode
729 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
730 vid_isfullscreen = true;
732 // Move the viewport to top left
733 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
742 // LordHavoc: save the visual for use in gamma ramp settings later
743 vidx11_visual = visinfo->visual;
745 /* window attributes */
746 attr.background_pixel = 0;
747 attr.border_pixel = 0;
748 // LordHavoc: save the colormap for later, too
749 vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
750 attr.event_mask = X_MASK;
751 if (vid_isfullscreen)
753 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
754 attr.override_redirect = True;
755 attr.backing_store = NotUseful;
756 attr.save_under = False;
759 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
761 win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
762 XStoreName(vidx11_display, win, gamename);
763 XMapWindow(vidx11_display, win);
765 // LordHavoc: making the close button on a window do the right thing
766 // seems to involve this mess, sigh...
767 wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
768 XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
770 if (vid_isfullscreen)
772 XMoveWindow(vidx11_display, win, 0, 0);
773 XRaiseWindow(vidx11_display, win);
774 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
775 XFlush(vidx11_display);
776 // Move the viewport to top left
777 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
780 //XSync(vidx11_display, False);
782 ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
785 Con_Printf ("glXCreateContext failed\n");
789 if (!qglXMakeCurrent(vidx11_display, win, ctx))
791 Con_Printf ("glXMakeCurrent failed\n");
795 XSync(vidx11_display, False);
797 if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
799 Con_Printf ("glGetString not found in %s\n", gl_driver);
803 gl_renderer = (const char *)qglGetString(GL_RENDERER);
804 gl_vendor = (const char *)qglGetString(GL_VENDOR);
805 gl_version = (const char *)qglGetString(GL_VERSION);
806 gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
808 gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
810 gl_videosyncavailable = false;
812 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
813 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
814 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
815 GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
816 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
817 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
818 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
819 gl_videosyncavailable = GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
821 vid_usingmouse = false;
822 vid_usingvsync = false;
824 vid_activewindow = true;
825 vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
826 #if !defined(__APPLE__) && !defined(SUNOS)
827 vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
828 if (!vid_x11_dgasupported)
829 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
835 void Sys_SendKeyEvents(void)
837 static qboolean sound_active = true;
839 // enable/disable sound on focus gain/loss
840 if (!vid_hidden && (vid_activewindow || !snd_mutewhenidle.integer))
853 sound_active = false;
864 in_mouse_x = mouse_x;
865 in_mouse_y = mouse_y;