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)(int divisor, int remainder, unsigned int *count);
66 static dllfunction_t videosyncfuncs[] =
68 {"glXGetVideoSyncSGI", (void **) &qglXGetVideoSyncSGI},
69 {"glXWaitVideoSyncSGI", (void **) &qglXWaitVideoSyncSGI},
73 static Display *vidx11_display = NULL;
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 | StructureNotifyMask )
86 static qboolean mouse_avail = true;
87 static qboolean mouse_active = false, usingmouse = false;
88 static float mouse_x, mouse_y;
89 static int p_mouse_x, p_mouse_y;
91 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
92 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
94 qboolean vidmode_ext = false;
96 static int win_x, win_y;
98 static int scr_width, scr_height;
100 static XF86VidModeModeInfo **vidmodes;
101 static int num_vidmodes;
102 static qboolean vidmode_active = false;
104 static Visual *vidx11_visual;
105 static Colormap vidx11_colormap;
107 /*-----------------------------------------------------------------------*/
109 static int XLateKey(XKeyEvent *ev)
115 XLookupString(ev, buf, sizeof buf, &keysym, 0);
119 case XK_KP_Page_Up: key = K_KP_PGUP; break;
120 case XK_Page_Up: key = K_PGUP; break;
122 case XK_KP_Page_Down: key = K_KP_PGDN; break;
123 case XK_Page_Down: key = K_PGDN; break;
125 case XK_KP_Home: key = K_KP_HOME; break;
126 case XK_Home: key = K_HOME; break;
128 case XK_KP_End: key = K_KP_END; break;
129 case XK_End: key = K_END; break;
131 case XK_KP_Left: key = K_KP_LEFTARROW; break;
132 case XK_Left: key = K_LEFTARROW; break;
134 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
135 case XK_Right: key = K_RIGHTARROW; break;
137 case XK_KP_Down: key = K_KP_DOWNARROW; break;
138 case XK_Down: key = K_DOWNARROW; break;
140 case XK_KP_Up: key = K_KP_UPARROW; break;
141 case XK_Up: key = K_UPARROW; break;
143 case XK_Escape: key = K_ESCAPE; break;
145 case XK_KP_Enter: key = K_KP_ENTER; break;
146 case XK_Return: key = K_ENTER; break;
148 case XK_Tab: key = K_TAB; break;
150 case XK_F1: key = K_F1; break;
152 case XK_F2: key = K_F2; break;
154 case XK_F3: key = K_F3; break;
156 case XK_F4: key = K_F4; break;
158 case XK_F5: key = K_F5; break;
160 case XK_F6: key = K_F6; break;
162 case XK_F7: key = K_F7; break;
164 case XK_F8: key = K_F8; break;
166 case XK_F9: key = K_F9; break;
168 case XK_F10: key = K_F10; break;
170 case XK_F11: key = K_F11; break;
172 case XK_F12: key = K_F12; break;
174 case XK_BackSpace: key = K_BACKSPACE; break;
176 case XK_KP_Delete: key = K_KP_DEL; break;
177 case XK_Delete: key = K_DEL; break;
179 case XK_Pause: key = K_PAUSE; break;
182 case XK_Shift_R: key = K_SHIFT; break;
186 case XK_Control_R: key = K_CTRL; break;
191 case XK_Meta_R: key = K_ALT; break;
193 case XK_KP_Begin: key = K_KP_5; break;
195 case XK_Insert:key = K_INS; break;
196 case XK_KP_Insert: key = K_KP_INS; break;
198 case XK_KP_Multiply: key = '*'; break;
199 case XK_KP_Add: key = K_KP_PLUS; break;
200 case XK_KP_Subtract: key = K_KP_MINUS; break;
201 case XK_KP_Divide: key = K_KP_SLASH; break;
204 case 0x021: key = '1';break;/* [!] */
205 case 0x040: key = '2';break;/* [@] */
206 case 0x023: key = '3';break;/* [#] */
207 case 0x024: key = '4';break;/* [$] */
208 case 0x025: key = '5';break;/* [%] */
209 case 0x05e: key = '6';break;/* [^] */
210 case 0x026: key = '7';break;/* [&] */
211 case 0x02a: key = '8';break;/* [*] */
212 case 0x028: key = '9';;break;/* [(] */
213 case 0x029: key = '0';break;/* [)] */
214 case 0x05f: key = '-';break;/* [_] */
215 case 0x02b: key = '=';break;/* [+] */
216 case 0x07c: key = '\'';break;/* [|] */
217 case 0x07d: key = '[';break;/* [}] */
218 case 0x07b: key = ']';break;/* [{] */
219 case 0x022: key = '\'';break;/* ["] */
220 case 0x03a: key = ';';break;/* [:] */
221 case 0x03f: key = '/';break;/* [?] */
222 case 0x03e: key = '.';break;/* [>] */
223 case 0x03c: key = ',';break;/* [<] */
227 key = *(unsigned char*)buf;
228 if (key >= 'A' && key <= 'Z')
229 key = key - 'A' + 'a';
236 static Cursor CreateNullCursor(Display *display, Window root)
244 cursormask = XCreatePixmap(display, root, 1, 1, 1);
245 xgc.function = GXclear;
246 gc = XCreateGC(display, cursormask, GCFunction, &xgc);
247 XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
248 dummycolour.pixel = 0;
250 dummycolour.flags = 04;
251 cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
252 XFreePixmap(display,cursormask);
257 static void install_grabs(void)
259 XWindowAttributes attribs_1;
260 XSetWindowAttributes attribs_2;
262 XGetWindowAttributes(vidx11_display, win, &attribs_1);
263 attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
264 XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
267 XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
269 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, probalby not supported
278 Con_Printf( "Failed to detect XF86DGA Mouse\n" );
284 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
285 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
289 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
291 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
294 mouse_x = mouse_y = 0;
297 static void uninstall_grabs(void)
299 if (!vidx11_display || !win)
302 if (vid_dga.integer == 1)
303 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
305 XUngrabPointer(vidx11_display, CurrentTime);
306 XUngrabKeyboard(vidx11_display, CurrentTime);
309 XUndefineCursor(vidx11_display, win);
311 mouse_active = false;
314 static void HandleEvents(void)
317 qboolean dowarp = false;
322 while (XPending(vidx11_display))
324 XNextEvent(vidx11_display, &event);
330 Key_Event(XLateKey(&event.xkey), true);
335 Key_Event(XLateKey(&event.xkey), false);
342 if (vid_dga.integer == 1)
344 mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
345 mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
350 if (!event.xmotion.send_event)
352 mouse_x += event.xmotion.x - p_mouse_x;
353 mouse_y += event.xmotion.y - p_mouse_y;
354 if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
357 p_mouse_x = event.xmotion.x;
358 p_mouse_y = event.xmotion.y;
362 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
366 // mouse button pressed
367 switch(event.xbutton.button)
370 Key_Event(K_MOUSE1, true);
373 Key_Event(K_MOUSE3, true);
376 Key_Event(K_MOUSE2, true);
379 Key_Event(K_MWHEELUP, true);
382 Key_Event(K_MWHEELDOWN, true);
385 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
391 // mouse button released
392 switch(event.xbutton.button)
395 Key_Event(K_MOUSE1, false);
398 Key_Event(K_MOUSE3, false);
401 Key_Event(K_MOUSE2, false);
404 Key_Event(K_MWHEELUP, false);
407 Key_Event(K_MWHEELDOWN, false);
410 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
417 win_x = event.xcreatewindow.x;
418 win_y = event.xcreatewindow.y;
421 case ConfigureNotify:
422 // window changed size/location
423 win_x = event.xconfigure.x;
424 win_y = event.xconfigure.y;
427 // window has been destroyed
431 // window manager messages
432 if ((event.xclient.format == 32) && (event.xclient.data.l[0] == wm_delete_window_atom))
440 // window iconified/rolledup/whatever
444 // window is now the input focus
447 // window is no longer the input focus
450 // mouse entered window
460 /* move the mouse to the window center again */
461 p_mouse_x = scr_width / 2;
462 p_mouse_y = scr_height / 2;
463 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
468 static void IN_DeactivateMouse( void )
470 if (!mouse_avail || !vidx11_display || !win)
476 mouse_active = false;
480 static void IN_ActivateMouse( void )
482 if (!mouse_avail || !vidx11_display || !win)
487 mouse_x = mouse_y = 0; // don't spazz
494 void VID_Shutdown(void)
496 if (!ctx || !vidx11_display)
505 // FIXME: glXDestroyContext here?
507 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
509 XDestroyWindow(vidx11_display, win);
510 XCloseDisplay(vidx11_display);
512 vidmode_active = false;
513 vidx11_display = NULL;
520 void signal_handler(int sig)
522 printf("Received signal %d, exiting...\n", sig);
529 signal(SIGHUP, signal_handler);
530 signal(SIGINT, signal_handler);
531 signal(SIGQUIT, signal_handler);
532 signal(SIGILL, signal_handler);
533 signal(SIGTRAP, signal_handler);
534 signal(SIGIOT, signal_handler);
535 signal(SIGBUS, signal_handler);
536 signal(SIGFPE, signal_handler);
537 signal(SIGSEGV, signal_handler);
538 signal(SIGTERM, signal_handler);
546 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
550 *height = scr_height;
553 void VID_Finish (void)
556 if (r_render.integer)
559 qglXSwapBuffers(vidx11_display, win);
562 // handle the mouse state when windowed if that's changed
564 if (vid_mouse.integer && !key_consoleactive)
581 IN_DeactivateMouse ();
586 // LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
587 // SDL than to simply use the XFree gamma ramp extension, but that affects the
588 // whole screen even when the game window is inactive, this only affects the
589 // screen while the window is active, very desirable behavior :)
590 int VID_SetGamma(float prescale, float gamma, float scale, float base)
592 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
597 unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
599 unsigned short ramp[256];
601 if (COM_CheckParm("-nogamma"))
604 if (vidx11_visual->class != DirectColor)
606 Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
610 Rmask = vidx11_visual->red_mask;
611 Gmask = vidx11_visual->green_mask;
612 Bmask = vidx11_visual->blue_mask;
618 for (;!(mask & 1);mask >>= 1)
620 for (;(mask & 1);mask >>= 1)
627 for (;!(mask & 1);mask >>= 1)
629 for (;(mask & 1);mask >>= 1)
636 for (;!(mask & 1);mask >>= 1)
638 for (;(mask & 1);mask >>= 1)
642 BuildGammaTable16(prescale, gamma, scale, base, ramp);
644 // convert gamma ramp to palette (yes this seems odd)
645 ncolors = vidx11_visual->map_entries;
646 for (i = 0;i < ncolors;i++)
648 c = (256 * i / ncolors);
649 xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
650 xcmap[i].red = ramp[c];
651 xcmap[i].green = ramp[c];
652 xcmap[i].blue = ramp[c];
653 xcmap[i].flags = (DoRed|DoGreen|DoBlue);
655 XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
656 XSync(vidx11_display, false);
657 // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
664 Cvar_RegisterVariable (&vid_dga);
665 Cvar_RegisterVariable (&vid_dga_mouseaccel);
666 InitSig(); // trap evil signals
667 if (COM_CheckParm ("-nomouse") || COM_CheckParm("-safe"))
671 void VID_BuildGLXAttrib(int *attrib, int stencil, int gamma)
673 *attrib++ = GLX_RGBA;
674 *attrib++ = GLX_RED_SIZE;*attrib++ = 1;
675 *attrib++ = GLX_GREEN_SIZE;*attrib++ = 1;
676 *attrib++ = GLX_BLUE_SIZE;*attrib++ = 1;
677 *attrib++ = GLX_DOUBLEBUFFER;
678 *attrib++ = GLX_DEPTH_SIZE;*attrib++ = 1;
679 // if stencil is enabled, ask for alpha too
682 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
683 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 1;
687 *attrib++ = GLX_X_VISUAL_TYPE;*attrib++ = GLX_DIRECT_COLOR;
692 int VID_InitMode(int fullscreen, int width, int height, int bpp, int stencil)
696 XSetWindowAttributes attr;
699 XVisualInfo *visinfo;
700 int MajorVersion, MinorVersion;
701 const char *drivername;
703 drivername = "libGL.so.1";
704 i = COM_CheckParm("-gl_driver");
705 if (i && i < com_argc - 1)
706 drivername = com_argv[i + 1];
707 if (!GL_OpenLibrary(drivername))
709 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
713 if (!(vidx11_display = XOpenDisplay(NULL)))
715 Con_Printf("Couldn't open the X display\n");
719 scrnum = DefaultScreen(vidx11_display);
720 root = RootWindow(vidx11_display, scrnum);
722 // Get video mode list
723 MajorVersion = MinorVersion = 0;
724 if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
728 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
732 if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
733 || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
734 || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
735 || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL
736 || (qglXQueryExtensionsString = GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
738 Con_Printf("glX functions not found in %s\n", gl_driver);
743 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
745 if (!COM_CheckParm("-nogamma"))
747 VID_BuildGLXAttrib(attrib, stencil, true);
748 visinfo = qglXChooseVisual(vidx11_display, scrnum, attrib);
753 VID_BuildGLXAttrib(attrib, stencil, false);
754 visinfo = qglXChooseVisual(vidx11_display, scrnum, attrib);
757 Con_Printf("Couldn't get an RGB, Double-buffered, Depth visual\n");
764 int best_fit, best_dist, dist, x, y;
766 XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
768 // Are we going fullscreen? If so, let's change video mode
774 for (i = 0; i < num_vidmodes; i++)
776 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
779 x = width - vidmodes[i]->hdisplay;
780 y = height - vidmodes[i]->vdisplay;
781 dist = (x * x) + (y * y);
782 if (dist < best_dist)
791 // LordHavoc: changed from ActualWidth/ActualHeight =,
792 // to width/height =, so the window will take the full area of
794 width = vidmodes[best_fit]->hdisplay;
795 height = vidmodes[best_fit]->vdisplay;
797 // change to the mode
798 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
799 vidmode_active = true;
801 // Move the viewport to top left
802 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
809 // LordHavoc: save the visual for use in gamma ramp settings later
810 vidx11_visual = visinfo->visual;
812 /* window attributes */
813 attr.background_pixel = 0;
814 attr.border_pixel = 0;
815 // LordHavoc: save the colormap for later, too
816 vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
817 attr.event_mask = X_MASK;
820 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
821 attr.override_redirect = True;
822 attr.backing_store = NotUseful;
823 attr.save_under = False;
826 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
828 win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
829 XStoreName(vidx11_display, win, gamename);
830 XMapWindow(vidx11_display, win);
832 // LordHavoc: making the close button on a window do the right thing
833 // seems to involve this mess, sigh...
834 wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
835 XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
839 XMoveWindow(vidx11_display, win, 0, 0);
840 XRaiseWindow(vidx11_display, win);
841 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
842 XFlush(vidx11_display);
843 // Move the viewport to top left
844 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
847 //XSync(vidx11_display, False);
849 ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
851 Sys_Error ("glXCreateContext failed\n");
853 if (!qglXMakeCurrent(vidx11_display, win, ctx))
854 Sys_Error ("glXMakeCurrent failed\n");
856 XSync(vidx11_display, False);
861 if ((qglGetString = GL_GetProcAddress("glGetString")) == NULL)
862 Sys_Error("glGetString not found in %s", gl_driver);
864 gl_renderer = qglGetString(GL_RENDERER);
865 gl_vendor = qglGetString(GL_VENDOR);
866 gl_version = qglGetString(GL_VERSION);
867 gl_extensions = qglGetString(GL_EXTENSIONS);
869 gl_platformextensions = qglXQueryExtensionsString(vidx11_display, scrnum);
871 GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
872 gl_videosyncavailable = GL_CheckExtension("GLX_SGI_video_sync", videosyncfuncs, "-novideosync", false);
880 void Sys_SendKeyEvents(void)
890 void IN_Commands (void)
894 void IN_Move (usercmd_t *cmd)
897 IN_Mouse(cmd, mouse_x, mouse_y);
902 static void *prjobj = NULL;
904 int GL_OpenLibrary(const char *name)
906 Con_Printf("Loading GL driver %s\n", name);
908 if (!(prjobj = dlopen(name, RTLD_LAZY)))
910 Con_Printf("Unable to open symbol list for %s\n", name);
913 strcpy(gl_driver, name);
917 void GL_CloseLibrary(void)
923 qglXGetProcAddressARB = NULL;
926 gl_platformextensions = "";
929 void *GL_GetProcAddress(const char *name)
932 if (qglXGetProcAddressARB != NULL)
933 p = (void *) qglXGetProcAddressARB(name);
935 p = (void *) dlsym(prjobj, name);