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},
66 GLint (GLAPIENTRY *qglXGetVideoSyncSGI)(GLuint *count);
67 GLint (GLAPIENTRY *qglXWaitVideoSyncSGI)(GLint divisor, GLint remainder, GLuint *count);
69 static dllfunction_t videosyncfuncs[] =
71 {"glXGetVideoSyncSGI", (void **) &qglXGetVideoSyncSGI},
72 {"glXWaitVideoSyncSGI", (void **) &qglXWaitVideoSyncSGI},
76 static Display *vidx11_display = NULL;
77 static int vidx11_screen;
79 static GLXContext ctx = NULL;
81 Atom wm_delete_window_atom;
83 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
84 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
85 PointerMotionMask | ButtonMotionMask)
86 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
87 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
91 static qboolean mouse_avail = true;
92 static qboolean mouse_active = false, usingmouse = false, ignoremousemove = false;
93 static float mouse_x, mouse_y;
94 static int p_mouse_x, p_mouse_y;
97 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
98 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
101 qboolean vidmode_ext = false;
103 static int win_x, win_y;
105 static int scr_width, scr_height;
107 static XF86VidModeModeInfo **vidmodes;
108 static int num_vidmodes;
109 static qboolean vidmode_active = false;
111 static Visual *vidx11_visual;
112 static Colormap vidx11_colormap;
114 /*-----------------------------------------------------------------------*/
116 static int XLateKey(XKeyEvent *ev, char *ascii)
120 KeySym keysym, shifted;
122 keysym = XLookupKeysym (ev, 0);
123 XLookupString(ev, buf, sizeof buf, &shifted, 0);
128 case XK_KP_Page_Up: key = K_KP_PGUP; break;
129 case XK_Page_Up: key = K_PGUP; break;
131 case XK_KP_Page_Down: key = K_KP_PGDN; break;
132 case XK_Page_Down: key = K_PGDN; break;
134 case XK_KP_Home: key = K_KP_HOME; break;
135 case XK_Home: key = K_HOME; break;
137 case XK_KP_End: key = K_KP_END; break;
138 case XK_End: key = K_END; break;
140 case XK_KP_Left: key = K_KP_LEFTARROW; break;
141 case XK_Left: key = K_LEFTARROW; break;
143 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
144 case XK_Right: key = K_RIGHTARROW; break;
146 case XK_KP_Down: key = K_KP_DOWNARROW; break;
147 case XK_Down: key = K_DOWNARROW; break;
149 case XK_KP_Up: key = K_KP_UPARROW; break;
150 case XK_Up: key = K_UPARROW; break;
152 case XK_Escape: key = K_ESCAPE; break;
154 case XK_KP_Enter: key = K_KP_ENTER; break;
155 case XK_Return: key = K_ENTER; break;
157 case XK_Tab: key = K_TAB; break;
159 case XK_F1: key = K_F1; break;
161 case XK_F2: key = K_F2; break;
163 case XK_F3: key = K_F3; break;
165 case XK_F4: key = K_F4; break;
167 case XK_F5: key = K_F5; break;
169 case XK_F6: key = K_F6; break;
171 case XK_F7: key = K_F7; break;
173 case XK_F8: key = K_F8; break;
175 case XK_F9: key = K_F9; break;
177 case XK_F10: key = K_F10; break;
179 case XK_F11: key = K_F11; break;
181 case XK_F12: key = K_F12; break;
183 case XK_BackSpace: key = K_BACKSPACE; break;
185 case XK_KP_Delete: key = K_KP_DEL; break;
186 case XK_Delete: key = K_DEL; break;
188 case XK_Pause: key = K_PAUSE; break;
191 case XK_Shift_R: key = K_SHIFT; break;
195 case XK_Control_R: key = K_CTRL; break;
200 case XK_Meta_R: key = K_ALT; break;
202 case XK_KP_Begin: key = K_KP_5; break;
204 case XK_Insert:key = K_INS; break;
205 case XK_KP_Insert: key = K_KP_INS; break;
207 case XK_KP_Multiply: key = '*'; break;
208 case XK_KP_Add: key = K_KP_PLUS; break;
209 case XK_KP_Subtract: key = K_KP_MINUS; break;
210 case XK_KP_Divide: key = K_KP_SLASH; break;
213 if (keysym < 32 && keysym > 126)
216 if (keysym >= 'A' && keysym <= 'Z')
217 key = keysym - 'A' + 'a';
227 static Cursor CreateNullCursor(Display *display, Window root)
235 cursormask = XCreatePixmap(display, root, 1, 1, 1);
236 xgc.function = GXclear;
237 gc = XCreateGC(display, cursormask, GCFunction, &xgc);
238 XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
239 dummycolour.pixel = 0;
241 dummycolour.flags = 04;
242 cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
243 XFreePixmap(display,cursormask);
248 static void install_grabs(void)
250 XWindowAttributes attribs_1;
251 XSetWindowAttributes attribs_2;
253 XGetWindowAttributes(vidx11_display, win, &attribs_1);
254 attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
255 XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
258 XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
260 XGrabPointer(vidx11_display, win, True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
265 int MajorVersion, MinorVersion;
267 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
269 // unable to query, probalby not supported
270 Con_Print( "Failed to detect XF86DGA Mouse\n" );
276 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
277 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
282 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
284 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
287 mouse_x = mouse_y = 0;
288 ignoremousemove = true;
291 static void uninstall_grabs(void)
293 if (!vidx11_display || !win)
297 if (vid_dga.integer == 1)
298 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
301 XUngrabPointer(vidx11_display, CurrentTime);
302 XUngrabKeyboard(vidx11_display, CurrentTime);
305 XUndefineCursor(vidx11_display, win);
307 mouse_active = false;
308 ignoremousemove = true;
311 static void HandleEvents(void)
316 qboolean dowarp = false;
321 while (XPending(vidx11_display))
323 XNextEvent(vidx11_display, &event);
329 key = XLateKey (&event.xkey, &ascii);
330 Key_Event(key, ascii, true);
335 key = XLateKey (&event.xkey, &ascii);
336 Key_Event(key, ascii, false);
344 if (vid_dga.integer == 1)
346 mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
347 mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
353 if (!event.xmotion.send_event)
355 mouse_x += event.xmotion.x - p_mouse_x;
356 mouse_y += event.xmotion.y - p_mouse_y;
357 if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
360 p_mouse_x = event.xmotion.x;
361 p_mouse_y = event.xmotion.y;
365 // ui_mouseupdate(event.xmotion.x, event.xmotion.y);
369 // mouse button pressed
370 switch(event.xbutton.button)
373 Key_Event(K_MOUSE1, 0, true);
376 Key_Event(K_MOUSE3, 0, true);
379 Key_Event(K_MOUSE2, 0, true);
382 Key_Event(K_MWHEELUP, 0, true);
385 Key_Event(K_MWHEELDOWN, 0, true);
388 Key_Event(K_MOUSE4, 0, true);
391 Key_Event(K_MOUSE5, 0, true);
394 Key_Event(K_MOUSE6, 0, true);
397 Key_Event(K_MOUSE7, 0, true);
400 Key_Event(K_MOUSE8, 0, true);
403 Key_Event(K_MOUSE9, 0, true);
406 Key_Event(K_MOUSE10, 0, true);
409 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-12 expected\n", event.xbutton.button);
415 // mouse button released
416 switch(event.xbutton.button)
419 Key_Event(K_MOUSE1, 0, false);
422 Key_Event(K_MOUSE3, 0, false);
425 Key_Event(K_MOUSE2, 0, false);
428 Key_Event(K_MWHEELUP, 0, false);
431 Key_Event(K_MWHEELDOWN, 0, false);
434 Key_Event(K_MOUSE4, 0, false);
437 Key_Event(K_MOUSE5, 0, false);
440 Key_Event(K_MOUSE6, 0, false);
443 Key_Event(K_MOUSE7, 0, false);
446 Key_Event(K_MOUSE8, 0, false);
449 Key_Event(K_MOUSE9, 0, false);
452 Key_Event(K_MOUSE10, 0, false);
455 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-12 expected\n", event.xbutton.button);
462 win_x = event.xcreatewindow.x;
463 win_y = event.xcreatewindow.y;
466 case ConfigureNotify:
467 // window changed size/location
468 win_x = event.xconfigure.x;
469 win_y = event.xconfigure.y;
472 // window has been destroyed
476 // window manager messages
477 if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
483 vid_activewindow = false;
484 VID_RestoreSystemGamma();
487 // window iconified/rolledup/whatever
489 vid_activewindow = false;
490 VID_RestoreSystemGamma();
493 // window is now the input focus
494 vid_activewindow = true;
497 // window is no longer the input focus
498 vid_activewindow = false;
499 VID_RestoreSystemGamma();
502 // mouse entered window
512 /* move the mouse to the window center again */
513 p_mouse_x = scr_width / 2;
514 p_mouse_y = scr_height / 2;
515 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
518 // if told to ignore one mouse move, do so
521 ignoremousemove = false;
527 static void IN_DeactivateMouse( void )
529 if (!mouse_avail || !vidx11_display || !win)
535 mouse_active = false;
539 static void IN_ActivateMouse( void )
541 if (!mouse_avail || !vidx11_display || !win)
551 void VID_Shutdown(void)
553 if (!ctx || !vidx11_display)
560 VID_RestoreSystemGamma();
563 // FIXME: glXDestroyContext here?
565 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[0]);
567 XDestroyWindow(vidx11_display, win);
568 XCloseDisplay(vidx11_display);
570 vidmode_active = false;
571 vidx11_display = NULL;
579 void signal_handler(int sig)
581 printf("Received signal %d, exiting...\n", sig);
582 VID_RestoreSystemGamma();
589 signal(SIGHUP, signal_handler);
590 signal(SIGINT, signal_handler);
591 signal(SIGQUIT, signal_handler);
592 signal(SIGILL, signal_handler);
593 signal(SIGTRAP, signal_handler);
594 signal(SIGIOT, signal_handler);
595 signal(SIGBUS, signal_handler);
596 signal(SIGFPE, signal_handler);
597 signal(SIGSEGV, signal_handler);
598 signal(SIGTERM, signal_handler);
606 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
610 *height = scr_height;
613 void VID_Finish (void)
616 if (r_render.integer)
618 if (r_speeds.integer || gl_finish.integer)
620 qglXSwapBuffers(vidx11_display, win);
623 // handle the mouse state when windowed if that's changed
625 if (vid_mouse.integer && !key_consoleactive)
642 IN_DeactivateMouse ();
647 int VID_SetGamma(unsigned short *ramps)
649 return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
652 int VID_GetGamma(unsigned short *ramps)
654 return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
660 Cvar_RegisterVariable (&vid_dga);
661 Cvar_RegisterVariable (&vid_dga_mouseaccel);
663 InitSig(); // trap evil signals
664 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
665 if (COM_CheckParm ("-nomouse") || COM_CheckParm("-safe"))
669 void VID_BuildGLXAttrib(int *attrib, int stencil)
671 *attrib++ = GLX_RGBA;
672 *attrib++ = GLX_RED_SIZE;*attrib++ = 1;
673 *attrib++ = GLX_GREEN_SIZE;*attrib++ = 1;
674 *attrib++ = GLX_BLUE_SIZE;*attrib++ = 1;
675 *attrib++ = GLX_DOUBLEBUFFER;
676 *attrib++ = GLX_DEPTH_SIZE;*attrib++ = 1;
677 // if stencil is enabled, ask for alpha too
680 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
681 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 1;
686 int VID_InitMode(int fullscreen, int width, int height, int bpp)
690 XSetWindowAttributes attr;
693 XVisualInfo *visinfo;
694 int MajorVersion, MinorVersion;
695 const char *drivername;
697 #if defined(__APPLE__) && defined(__MACH__)
698 drivername = "/usr/X11R6/lib/libGL.1.dylib";
700 drivername = "libGL.so.1";
702 // 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
703 // 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
704 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
705 i = COM_CheckParm("-gl_driver");
706 if (i && i < com_argc - 1)
707 drivername = com_argv[i + 1];
708 if (!GL_OpenLibrary(drivername))
710 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
714 if (!(vidx11_display = XOpenDisplay(NULL)))
716 Con_Print("Couldn't open the X display\n");
720 vidx11_screen = DefaultScreen(vidx11_display);
721 root = RootWindow(vidx11_display, vidx11_screen);
723 // Get video mode list
724 MajorVersion = MinorVersion = 0;
725 if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
729 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
733 if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
734 || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
735 || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
736 || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL
737 || (qglXQueryExtensionsString = GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
739 Con_Printf("glX functions not found in %s\n", gl_driver);
743 VID_BuildGLXAttrib(attrib, bpp == 32);
744 visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
747 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
753 int best_fit, best_dist, dist, x, y;
755 // Are we going fullscreen? If so, let's change video mode
758 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
762 for (i = 0; i < num_vidmodes; i++)
764 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
767 x = width - vidmodes[i]->hdisplay;
768 y = height - vidmodes[i]->vdisplay;
769 dist = (x * x) + (y * y);
770 if (dist < best_dist)
779 // LordHavoc: changed from ActualWidth/ActualHeight =,
780 // to width/height =, so the window will take the full area of
782 width = vidmodes[best_fit]->hdisplay;
783 height = vidmodes[best_fit]->vdisplay;
785 // change to the mode
786 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
787 vidmode_active = true;
789 // Move the viewport to top left
790 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
797 // LordHavoc: save the visual for use in gamma ramp settings later
798 vidx11_visual = visinfo->visual;
800 /* window attributes */
801 attr.background_pixel = 0;
802 attr.border_pixel = 0;
803 // LordHavoc: save the colormap for later, too
804 vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
805 attr.event_mask = X_MASK;
808 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
809 attr.override_redirect = True;
810 attr.backing_store = NotUseful;
811 attr.save_under = False;
814 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
816 win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
817 XStoreName(vidx11_display, win, gamename);
818 XMapWindow(vidx11_display, win);
820 // LordHavoc: making the close button on a window do the right thing
821 // seems to involve this mess, sigh...
822 wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
823 XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
827 XMoveWindow(vidx11_display, win, 0, 0);
828 XRaiseWindow(vidx11_display, win);
829 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
830 XFlush(vidx11_display);
831 // Move the viewport to top left
832 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
835 //XSync(vidx11_display, False);
837 ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
839 Sys_Error ("glXCreateContext failed\n");
841 if (!qglXMakeCurrent(vidx11_display, win, ctx))
842 Sys_Error ("glXMakeCurrent failed\n");
844 XSync(vidx11_display, False);
849 if ((qglGetString = GL_GetProcAddress("glGetString")) == NULL)
850 Sys_Error("glGetString not found in %s", gl_driver);
852 gl_renderer = qglGetString(GL_RENDERER);
853 gl_vendor = qglGetString(GL_VENDOR);
854 gl_version = qglGetString(GL_VERSION);
855 gl_extensions = qglGetString(GL_EXTENSIONS);
857 gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
859 gl_videosyncavailable = false;
861 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
862 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
863 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
864 GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
865 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_video_sync
866 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_video_sync
867 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_video_sync
868 gl_videosyncavailable = GL_CheckExtension("GLX_SGI_video_sync", videosyncfuncs, "-novideosync", false);
871 ignoremousemove = true;
873 vid_activewindow = true;
878 void Sys_SendKeyEvents(void)
888 void IN_Commands (void)
892 void IN_Move (usercmd_t *cmd)
895 IN_Mouse(cmd, mouse_x, mouse_y);
900 static void *prjobj = NULL;
902 int GL_OpenLibrary(const char *name)
904 Con_Printf("Loading OpenGL driver %s\n", name);
906 if (!(prjobj = dlopen(name, RTLD_LAZY)))
908 Con_Printf("Unable to open symbol list for %s\n", name);
911 strcpy(gl_driver, name);
915 void GL_CloseLibrary(void)
921 qglXGetProcAddressARB = NULL;
924 gl_platformextensions = "";
927 void *GL_GetProcAddress(const char *name)
930 if (qglXGetProcAddressARB != NULL)
931 p = (void *) qglXGetProcAddressARB(name);
933 p = (void *) dlsym(prjobj, name);