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 #include <X11/extensions/xf86dga.h>
39 #include <X11/extensions/xf86vmode.h>
43 int cl_available = true;
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},
63 GLint (GLAPIENTRY *qglXGetVideoSyncSGI)(GLuint *count);
64 GLint (GLAPIENTRY *qglXWaitVideoSyncSGI)(GLint divisor, GLint remainder, GLuint *count);
66 static dllfunction_t videosyncfuncs[] =
68 {"glXGetVideoSyncSGI", (void **) &qglXGetVideoSyncSGI},
69 {"glXWaitVideoSyncSGI", (void **) &qglXWaitVideoSyncSGI},
73 static Display *vidx11_display = NULL;
74 static int vidx11_screen;
76 static GLXContext ctx = NULL;
78 Atom wm_delete_window_atom;
80 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
81 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
82 PointerMotionMask | ButtonMotionMask)
83 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
84 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
88 static qboolean mouse_avail = true;
89 static qboolean mouse_active = false, usingmouse = false;
90 static float mouse_x, mouse_y;
91 static int p_mouse_x, p_mouse_y;
93 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
94 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
96 qboolean vidmode_ext = false;
98 static int win_x, win_y;
100 static int scr_width, scr_height;
102 static XF86VidModeModeInfo **vidmodes;
103 static int num_vidmodes;
104 static qboolean vidmode_active = false;
106 static Visual *vidx11_visual;
107 static Colormap vidx11_colormap;
109 /*-----------------------------------------------------------------------*/
111 static int XLateKey(XKeyEvent *ev, char *ascii)
115 KeySym keysym, shifted;
117 keysym = XLookupKeysym (ev, 0);
118 XLookupString(ev, buf, sizeof buf, &shifted, 0);
123 case XK_KP_Page_Up: key = K_KP_PGUP; break;
124 case XK_Page_Up: key = K_PGUP; break;
126 case XK_KP_Page_Down: key = K_KP_PGDN; break;
127 case XK_Page_Down: key = K_PGDN; break;
129 case XK_KP_Home: key = K_KP_HOME; break;
130 case XK_Home: key = K_HOME; break;
132 case XK_KP_End: key = K_KP_END; break;
133 case XK_End: key = K_END; break;
135 case XK_KP_Left: key = K_KP_LEFTARROW; break;
136 case XK_Left: key = K_LEFTARROW; break;
138 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
139 case XK_Right: key = K_RIGHTARROW; break;
141 case XK_KP_Down: key = K_KP_DOWNARROW; break;
142 case XK_Down: key = K_DOWNARROW; break;
144 case XK_KP_Up: key = K_KP_UPARROW; break;
145 case XK_Up: key = K_UPARROW; break;
147 case XK_Escape: key = K_ESCAPE; break;
149 case XK_KP_Enter: key = K_KP_ENTER; break;
150 case XK_Return: key = K_ENTER; break;
152 case XK_Tab: key = K_TAB; break;
154 case XK_F1: key = K_F1; break;
156 case XK_F2: key = K_F2; break;
158 case XK_F3: key = K_F3; break;
160 case XK_F4: key = K_F4; break;
162 case XK_F5: key = K_F5; break;
164 case XK_F6: key = K_F6; break;
166 case XK_F7: key = K_F7; break;
168 case XK_F8: key = K_F8; break;
170 case XK_F9: key = K_F9; break;
172 case XK_F10: key = K_F10; break;
174 case XK_F11: key = K_F11; break;
176 case XK_F12: key = K_F12; break;
178 case XK_BackSpace: key = K_BACKSPACE; break;
180 case XK_KP_Delete: key = K_KP_DEL; break;
181 case XK_Delete: key = K_DEL; break;
183 case XK_Pause: key = K_PAUSE; break;
186 case XK_Shift_R: key = K_SHIFT; break;
190 case XK_Control_R: key = K_CTRL; break;
195 case XK_Meta_R: key = K_ALT; break;
197 case XK_KP_Begin: key = K_KP_5; break;
199 case XK_Insert:key = K_INS; break;
200 case XK_KP_Insert: key = K_KP_INS; break;
202 case XK_KP_Multiply: key = '*'; break;
203 case XK_KP_Add: key = K_KP_PLUS; break;
204 case XK_KP_Subtract: key = K_KP_MINUS; break;
205 case XK_KP_Divide: key = K_KP_SLASH; break;
214 static Cursor CreateNullCursor(Display *display, Window root)
222 cursormask = XCreatePixmap(display, root, 1, 1, 1);
223 xgc.function = GXclear;
224 gc = XCreateGC(display, cursormask, GCFunction, &xgc);
225 XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
226 dummycolour.pixel = 0;
228 dummycolour.flags = 04;
229 cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
230 XFreePixmap(display,cursormask);
235 static void install_grabs(void)
237 XWindowAttributes attribs_1;
238 XSetWindowAttributes attribs_2;
240 XGetWindowAttributes(vidx11_display, win, &attribs_1);
241 attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
242 XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
245 XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
247 XGrabPointer(vidx11_display, win, True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
251 int MajorVersion, MinorVersion;
253 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
255 // unable to query, probalby not supported
256 Con_Printf( "Failed to detect XF86DGA Mouse\n" );
262 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
263 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
267 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
269 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
272 mouse_x = mouse_y = 0;
275 static void uninstall_grabs(void)
277 if (!vidx11_display || !win)
280 if (vid_dga.integer == 1)
281 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
283 XUngrabPointer(vidx11_display, CurrentTime);
284 XUngrabKeyboard(vidx11_display, CurrentTime);
287 XUndefineCursor(vidx11_display, win);
289 mouse_active = false;
292 static void HandleEvents(void)
297 qboolean dowarp = false;
302 while (XPending(vidx11_display))
304 XNextEvent(vidx11_display, &event);
310 key = XLateKey (&event.xkey, &ascii);
311 Key_Event(key, ascii, true);
316 key = XLateKey (&event.xkey, &ascii);
317 Key_Event(key, ascii, false);
324 if (vid_dga.integer == 1)
326 mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
327 mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
332 if (!event.xmotion.send_event)
334 mouse_x += event.xmotion.x - p_mouse_x;
335 mouse_y += event.xmotion.y - p_mouse_y;
336 if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
339 p_mouse_x = event.xmotion.x;
340 p_mouse_y = event.xmotion.y;
344 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
348 // mouse button pressed
349 switch(event.xbutton.button)
352 Key_Event(K_MOUSE1, 0, true);
355 Key_Event(K_MOUSE3, 0, true);
358 Key_Event(K_MOUSE2, 0, true);
361 Key_Event(K_MWHEELUP, 0, true);
364 Key_Event(K_MWHEELDOWN, 0, true);
367 Key_Event(K_MOUSE4, 0, true);
370 Key_Event(K_MOUSE5, 0, true);
373 Key_Event(K_MOUSE6, 0, true);
376 Key_Event(K_MOUSE7, 0, true);
379 Key_Event(K_MOUSE8, 0, true);
382 Key_Event(K_MOUSE9, 0, true);
385 Key_Event(K_MOUSE10, 0, true);
388 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-12 expected\n", event.xbutton.button);
394 // mouse button released
395 switch(event.xbutton.button)
398 Key_Event(K_MOUSE1, 0, false);
401 Key_Event(K_MOUSE3, 0, false);
404 Key_Event(K_MOUSE2, 0, false);
407 Key_Event(K_MWHEELUP, 0, false);
410 Key_Event(K_MWHEELDOWN, 0, false);
413 Key_Event(K_MOUSE4, 0, false);
416 Key_Event(K_MOUSE5, 0, false);
419 Key_Event(K_MOUSE6, 0, false);
422 Key_Event(K_MOUSE7, 0, false);
425 Key_Event(K_MOUSE8, 0, false);
428 Key_Event(K_MOUSE9, 0, false);
431 Key_Event(K_MOUSE10, 0, false);
434 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-12 expected\n", event.xbutton.button);
441 win_x = event.xcreatewindow.x;
442 win_y = event.xcreatewindow.y;
445 case ConfigureNotify:
446 // window changed size/location
447 win_x = event.xconfigure.x;
448 win_y = event.xconfigure.y;
451 // window has been destroyed
455 // window manager messages
456 if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
462 vid_allowhwgamma = true;
465 // window iconified/rolledup/whatever
467 vid_allowhwgamma = false;
468 VID_RestoreSystemGamma();
471 // window is now the input focus
472 vid_allowhwgamma = true;
475 // window is no longer the input focus
476 vid_allowhwgamma = false;
477 VID_RestoreSystemGamma();
480 // mouse entered window
481 vid_allowhwgamma = true;
485 vid_allowhwgamma = false;
486 VID_RestoreSystemGamma();
493 /* move the mouse to the window center again */
494 p_mouse_x = scr_width / 2;
495 p_mouse_y = scr_height / 2;
496 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
501 static void IN_DeactivateMouse( void )
503 if (!mouse_avail || !vidx11_display || !win)
509 mouse_active = false;
513 static void IN_ActivateMouse( void )
515 if (!mouse_avail || !vidx11_display || !win)
520 mouse_x = mouse_y = 0; // don't spazz
526 void VID_Shutdown(void)
528 if (!ctx || !vidx11_display)
535 VID_RestoreSystemGamma();
538 // FIXME: glXDestroyContext here?
540 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[0]);
542 XDestroyWindow(vidx11_display, win);
543 XCloseDisplay(vidx11_display);
545 vidmode_active = false;
546 vidx11_display = NULL;
553 void signal_handler(int sig)
555 printf("Received signal %d, exiting...\n", sig);
556 VID_RestoreSystemGamma();
563 signal(SIGHUP, signal_handler);
564 signal(SIGINT, signal_handler);
565 signal(SIGQUIT, signal_handler);
566 signal(SIGILL, signal_handler);
567 signal(SIGTRAP, signal_handler);
568 signal(SIGIOT, signal_handler);
569 signal(SIGBUS, signal_handler);
570 signal(SIGFPE, signal_handler);
571 signal(SIGSEGV, signal_handler);
572 signal(SIGTERM, signal_handler);
580 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
584 *height = scr_height;
587 void VID_Finish (void)
590 if (r_render.integer)
593 qglXSwapBuffers(vidx11_display, win);
596 // handle the mouse state when windowed if that's changed
598 if (vid_mouse.integer && !key_consoleactive)
615 IN_DeactivateMouse ();
620 int VID_SetGamma(unsigned short *ramps)
622 return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
625 int VID_GetGamma(unsigned short *ramps)
627 return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
632 Cvar_RegisterVariable (&vid_dga);
633 Cvar_RegisterVariable (&vid_dga_mouseaccel);
634 InitSig(); // trap evil signals
635 if (COM_CheckParm ("-nomouse") || COM_CheckParm("-safe"))
639 void VID_BuildGLXAttrib(int *attrib, int stencil)
641 *attrib++ = GLX_RGBA;
642 *attrib++ = GLX_RED_SIZE;*attrib++ = 1;
643 *attrib++ = GLX_GREEN_SIZE;*attrib++ = 1;
644 *attrib++ = GLX_BLUE_SIZE;*attrib++ = 1;
645 *attrib++ = GLX_DOUBLEBUFFER;
646 *attrib++ = GLX_DEPTH_SIZE;*attrib++ = 1;
647 // if stencil is enabled, ask for alpha too
650 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
651 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 1;
656 int VID_InitMode(int fullscreen, int width, int height, int bpp, int stencil)
660 XSetWindowAttributes attr;
663 XVisualInfo *visinfo;
664 int MajorVersion, MinorVersion;
665 const char *drivername;
667 drivername = "libGL.so.1";
668 i = COM_CheckParm("-gl_driver");
669 if (i && i < com_argc - 1)
670 drivername = com_argv[i + 1];
671 if (!GL_OpenLibrary(drivername))
673 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
677 if (!(vidx11_display = XOpenDisplay(NULL)))
679 Con_Printf("Couldn't open the X display\n");
683 vidx11_screen = DefaultScreen(vidx11_display);
684 root = RootWindow(vidx11_display, vidx11_screen);
686 // Get video mode list
687 MajorVersion = MinorVersion = 0;
688 if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
692 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
696 if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
697 || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
698 || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
699 || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL
700 || (qglXQueryExtensionsString = GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
702 Con_Printf("glX functions not found in %s\n", gl_driver);
706 VID_BuildGLXAttrib(attrib, stencil);
707 visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
710 Con_Printf("Couldn't get an RGB, Double-buffered, Depth visual\n");
716 int best_fit, best_dist, dist, x, y;
718 // Are we going fullscreen? If so, let's change video mode
721 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
725 for (i = 0; i < num_vidmodes; i++)
727 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
730 x = width - vidmodes[i]->hdisplay;
731 y = height - vidmodes[i]->vdisplay;
732 dist = (x * x) + (y * y);
733 if (dist < best_dist)
742 // LordHavoc: changed from ActualWidth/ActualHeight =,
743 // to width/height =, so the window will take the full area of
745 width = vidmodes[best_fit]->hdisplay;
746 height = vidmodes[best_fit]->vdisplay;
748 // change to the mode
749 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
750 vidmode_active = true;
752 // Move the viewport to top left
753 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
760 // LordHavoc: save the visual for use in gamma ramp settings later
761 vidx11_visual = visinfo->visual;
763 /* window attributes */
764 attr.background_pixel = 0;
765 attr.border_pixel = 0;
766 // LordHavoc: save the colormap for later, too
767 vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
768 attr.event_mask = X_MASK;
771 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
772 attr.override_redirect = True;
773 attr.backing_store = NotUseful;
774 attr.save_under = False;
777 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
779 win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
780 XStoreName(vidx11_display, win, gamename);
781 XMapWindow(vidx11_display, win);
783 // LordHavoc: making the close button on a window do the right thing
784 // seems to involve this mess, sigh...
785 wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
786 XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
790 XMoveWindow(vidx11_display, win, 0, 0);
791 XRaiseWindow(vidx11_display, win);
792 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
793 XFlush(vidx11_display);
794 // Move the viewport to top left
795 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
798 //XSync(vidx11_display, False);
800 ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
802 Sys_Error ("glXCreateContext failed\n");
804 if (!qglXMakeCurrent(vidx11_display, win, ctx))
805 Sys_Error ("glXMakeCurrent failed\n");
807 XSync(vidx11_display, False);
812 if ((qglGetString = GL_GetProcAddress("glGetString")) == NULL)
813 Sys_Error("glGetString not found in %s", gl_driver);
815 gl_renderer = qglGetString(GL_RENDERER);
816 gl_vendor = qglGetString(GL_VENDOR);
817 gl_version = qglGetString(GL_VERSION);
818 gl_extensions = qglGetString(GL_EXTENSIONS);
820 gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
822 GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
823 gl_videosyncavailable = GL_CheckExtension("GLX_SGI_video_sync", videosyncfuncs, "-novideosync", false);
827 vid_allowhwgamma = true;
832 void Sys_SendKeyEvents(void)
842 void IN_Commands (void)
846 void IN_Move (usercmd_t *cmd)
849 IN_Mouse(cmd, mouse_x, mouse_y);
854 static void *prjobj = NULL;
856 int GL_OpenLibrary(const char *name)
858 Con_Printf("Loading OpenGL driver %s\n", name);
860 if (!(prjobj = dlopen(name, RTLD_LAZY)))
862 Con_Printf("Unable to open symbol list for %s\n", name);
865 strcpy(gl_driver, name);
869 void GL_CloseLibrary(void)
875 qglXGetProcAddressARB = NULL;
878 gl_platformextensions = "";
881 void *GL_GetProcAddress(const char *name)
884 if (qglXGetProcAddressARB != NULL)
885 p = (void *) qglXGetProcAddressARB(name);
887 p = (void *) dlsym(prjobj, name);