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 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
44 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
45 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
46 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
47 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
50 static Display *vidx11_display = NULL;
53 static GLXContext ctx = NULL;
55 Atom wm_delete_window_atom;
57 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
58 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
59 PointerMotionMask | ButtonMotionMask )
60 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
63 viddef_t vid; // global video state
65 static qboolean mouse_avail = true;
66 static qboolean mouse_active = false, usingmouse = false;
67 static float mouse_x, mouse_y;
68 static int p_mouse_x, p_mouse_y;
70 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
71 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
73 qboolean vidmode_ext = false;
75 static int win_x, win_y;
77 static int scr_width, scr_height;
79 static XF86VidModeModeInfo **vidmodes;
80 static int num_vidmodes;
81 static qboolean vidmode_active = false;
83 static Visual *vidx11_visual;
84 static Colormap vidx11_colormap;
86 /*-----------------------------------------------------------------------*/
89 XLateKey(XKeyEvent *ev)
94 keysym = XLookupKeysym(ev, 0);
98 case XK_KP_Page_Up: key = KP_PGUP; break;
99 case XK_Page_Up: key = K_PGUP; break;
101 case XK_KP_Page_Down: key = KP_PGDN; break;
102 case XK_Page_Down: key = K_PGDN; break;
104 case XK_KP_Home: key = KP_HOME; break;
105 case XK_Home: key = K_HOME; break;
107 case XK_KP_End: key = KP_END; break;
108 case XK_End: key = K_END; break;
110 case XK_KP_Left: key = KP_LEFTARROW; break;
111 case XK_Left: key = K_LEFTARROW; break;
113 case XK_KP_Right: key = KP_RIGHTARROW; break;
114 case XK_Right: key = K_RIGHTARROW; break;
116 case XK_KP_Down: key = KP_DOWNARROW; break;
117 case XK_Down: key = K_DOWNARROW; break;
119 case XK_KP_Up: key = KP_UPARROW; break;
120 case XK_Up: key = K_UPARROW; break;
122 case XK_Escape: key = K_ESCAPE; break;
124 case XK_KP_Enter: key = KP_ENTER; break;
125 case XK_Return: key = K_ENTER; break;
127 case XK_Tab: key = K_TAB; break;
129 case XK_F1: key = K_F1; break;
130 case XK_F2: key = K_F2; break;
131 case XK_F3: key = K_F3; break;
132 case XK_F4: key = K_F4; break;
133 case XK_F5: key = K_F5; break;
134 case XK_F6: key = K_F6; break;
135 case XK_F7: key = K_F7; break;
136 case XK_F8: key = K_F8; break;
137 case XK_F9: key = K_F9; break;
138 case XK_F10: key = K_F10; break;
139 case XK_F11: key = K_F11; break;
140 case XK_F12: key = K_F12; break;
142 case XK_BackSpace: key = K_BACKSPACE; break;
144 case XK_KP_Delete: key = KP_DEL; break;
145 case XK_Delete: key = K_DEL; break;
147 case XK_Pause: key = K_PAUSE; break;
150 case XK_Shift_R: key = K_SHIFT; break;
154 case XK_Control_R: key = K_CTRL; break;
160 case XK_Meta_R: key = K_ALT; break;
162 case XK_Caps_Lock: key = K_CAPSLOCK; break;
163 case XK_KP_Begin: key = KP_5; break;
165 case XK_Insert: key = K_INS; break;
166 case XK_KP_Insert: key = KP_INS; break;
168 case XK_KP_Multiply: key = KP_MULTIPLY; break;
169 case XK_KP_Add: key = KP_PLUS; break;
170 case XK_KP_Subtract: key = KP_MINUS; break;
171 case XK_KP_Divide: key = KP_DIVIDE; break;
173 /* For Sun keyboards */
174 case XK_F27: key = K_HOME; break;
175 case XK_F29: key = K_PGUP; break;
176 case XK_F33: key = K_END; break;
177 case XK_F35: key = K_PGDN; break;
184 if ((key >= 'A') && (key <= 'Z'))
185 key = key + ('a' - 'A');
193 static Cursor CreateNullCursor(Display *display, Window root)
201 cursormask = XCreatePixmap(display, root, 1, 1, 1);
202 xgc.function = GXclear;
203 gc = XCreateGC(display, cursormask, GCFunction, &xgc);
204 XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
205 dummycolour.pixel = 0;
207 dummycolour.flags = 04;
208 cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
209 XFreePixmap(display,cursormask);
214 static void install_grabs(void)
216 XWindowAttributes attribs_1;
217 XSetWindowAttributes attribs_2;
219 XGetWindowAttributes(vidx11_display, win, &attribs_1);
220 attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
221 XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
224 XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
226 XGrabPointer(vidx11_display, win, True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
230 int MajorVersion, MinorVersion;
232 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
234 // unable to query, probalby not supported
235 Con_Printf( "Failed to detect XF86DGA Mouse\n" );
241 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
242 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
246 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
248 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
251 mouse_x = mouse_y = 0;
254 static void uninstall_grabs(void)
256 if (!vidx11_display || !win)
259 if (vid_dga.integer == 1)
260 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
262 XUngrabPointer(vidx11_display, CurrentTime);
263 XUngrabKeyboard(vidx11_display, CurrentTime);
266 XUndefineCursor(vidx11_display, win);
268 mouse_active = false;
271 static void HandleEvents(void)
274 qboolean dowarp = false;
279 while (XPending(vidx11_display))
281 XNextEvent(vidx11_display, &event);
287 Key_Event(XLateKey(&event.xkey), true);
292 Key_Event(XLateKey(&event.xkey), false);
299 if (vid_dga.integer == 1)
301 mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
302 mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
307 if (!event.xmotion.send_event)
309 mouse_x += event.xmotion.x - p_mouse_x;
310 mouse_y += event.xmotion.y - p_mouse_y;
311 if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
314 p_mouse_x = event.xmotion.x;
315 p_mouse_y = event.xmotion.y;
319 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
323 // mouse button pressed
324 switch(event.xbutton.button)
327 Key_Event(K_MOUSE1, true);
330 Key_Event(K_MOUSE3, true);
333 Key_Event(K_MOUSE2, true);
336 Key_Event(K_MWHEELUP, true);
339 Key_Event(K_MWHEELDOWN, true);
342 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
348 // mouse button released
349 switch(event.xbutton.button)
352 Key_Event(K_MOUSE1, false);
355 Key_Event(K_MOUSE3, false);
358 Key_Event(K_MOUSE2, false);
361 Key_Event(K_MWHEELUP, false);
364 Key_Event(K_MWHEELDOWN, false);
367 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
374 win_x = event.xcreatewindow.x;
375 win_y = event.xcreatewindow.y;
378 case ConfigureNotify:
379 // window changed size/location
380 win_x = event.xconfigure.x;
381 win_y = event.xconfigure.y;
384 // window has been destroyed
388 // window manager messages
389 if ((event.xclient.format == 32) && (event.xclient.data.l[0] == wm_delete_window_atom))
397 // window iconified/rolledup/whatever
401 // window is now the input focus
404 // window is no longer the input focus
407 // mouse entered window
417 /* move the mouse to the window center again */
418 p_mouse_x = scr_width / 2;
419 p_mouse_y = scr_height / 2;
420 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
425 static void IN_DeactivateMouse( void )
427 if (!mouse_avail || !vidx11_display || !win)
433 mouse_active = false;
437 static void IN_ActivateMouse( void )
439 if (!mouse_avail || !vidx11_display || !win)
444 mouse_x = mouse_y = 0; // don't spazz
451 void VID_Shutdown(void)
453 if (!ctx || !vidx11_display)
461 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
463 XDestroyWindow(vidx11_display, win);
464 XCloseDisplay(vidx11_display);
466 vidmode_active = false;
467 vidx11_display = NULL;
474 void signal_handler(int sig)
476 printf("Received signal %d, exiting...\n", sig);
483 signal(SIGHUP, signal_handler);
484 signal(SIGINT, signal_handler);
485 signal(SIGQUIT, signal_handler);
486 signal(SIGILL, signal_handler);
487 signal(SIGTRAP, signal_handler);
488 signal(SIGIOT, signal_handler);
489 signal(SIGBUS, signal_handler);
490 signal(SIGFPE, signal_handler);
491 signal(SIGSEGV, signal_handler);
492 signal(SIGTERM, signal_handler);
500 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
504 *height = scr_height;
507 void VID_Finish (void)
510 if (r_render.integer)
513 qglXSwapBuffers(vidx11_display, win);
516 // handle the mouse state when windowed if that's changed
518 if (vid_mouse.integer && !key_consoleactive)
535 IN_DeactivateMouse ();
540 // LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
541 // SDL than to simply use the XFree gamma ramp extension, but that affects the
542 // whole screen even when the game window is inactive, this only affects the
543 // screen while the window is active, very desirable behavior :)
544 int VID_SetGamma(float prescale, float gamma, float scale, float base)
546 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
551 unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
553 unsigned short ramp[256];
555 if (COM_CheckParm("-nogamma"))
558 if (vidx11_visual->class != DirectColor)
560 Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
564 Rmask = vidx11_visual->red_mask;
565 Gmask = vidx11_visual->green_mask;
566 Bmask = vidx11_visual->blue_mask;
572 for (;!(mask & 1);mask >>= 1)
574 for (;(mask & 1);mask >>= 1)
581 for (;!(mask & 1);mask >>= 1)
583 for (;(mask & 1);mask >>= 1)
590 for (;!(mask & 1);mask >>= 1)
592 for (;(mask & 1);mask >>= 1)
596 BuildGammaTable16(prescale, gamma, scale, base, ramp);
598 // convert gamma ramp to palette (yes this seems odd)
599 ncolors = vidx11_visual->map_entries;
600 for (i = 0;i < ncolors;i++)
602 c = (256 * i / ncolors);
603 xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
604 xcmap[i].red = ramp[c];
605 xcmap[i].green = ramp[c];
606 xcmap[i].blue = ramp[c];
607 xcmap[i].flags = (DoRed|DoGreen|DoBlue);
609 XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
610 XSync(vidx11_display, false);
611 // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
619 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
629 GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR,
633 int nogammaattrib[] =
643 int width = 640, height = 480;
644 XSetWindowAttributes attr;
647 XVisualInfo *visinfo;
648 qboolean fullscreen = true;
649 int MajorVersion, MinorVersion;
653 Cvar_RegisterVariable (&vid_dga);
654 Cvar_RegisterVariable (&vid_dga_mouseaccel);
656 // interpret command-line params
658 // set vid parameters
659 if ((i = COM_CheckParm("-window")) != 0)
662 if ((i = COM_CheckParm("-width")) != 0)
663 width = atoi(com_argv[i+1]);
665 if ((i = COM_CheckParm("-height")) != 0)
666 height = atoi(com_argv[i+1]);
668 if ((i = COM_CheckParm("-conwidth")) != 0)
669 vid.conwidth = atoi(com_argv[i+1]);
673 vid.conwidth &= 0xfff8; // make it a multiple of eight
675 if (vid.conwidth < 320)
678 // pick a conheight that matches with correct aspect
679 vid.conheight = vid.conwidth*3 / 4;
681 if ((i = COM_CheckParm("-conheight")) != 0)
682 vid.conheight = atoi(com_argv[i+1]);
683 if (vid.conheight < 200)
686 if (!(vidx11_display = XOpenDisplay(NULL)))
688 fprintf(stderr, "Error couldn't open the X display\n");
692 scrnum = DefaultScreen(vidx11_display);
693 root = RootWindow(vidx11_display, scrnum);
695 // Get video mode list
696 MajorVersion = MinorVersion = 0;
697 if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
701 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
705 if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
706 || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
707 || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
708 || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL)
709 Sys_Error("glX functions not found in libGL.so.1\n");
712 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
714 if (!COM_CheckParm("-nogamma"))
715 visinfo = qglXChooseVisual(vidx11_display, scrnum, gammaattrib);
719 visinfo = qglXChooseVisual(vidx11_display, scrnum, nogammaattrib);
722 Sys_Error("couldn't get an RGB, Double-buffered, Depth visual\n");
729 int best_fit, best_dist, dist, x, y;
731 XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
733 // Are we going fullscreen? If so, let's change video mode
739 for (i = 0; i < num_vidmodes; i++)
741 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
744 x = width - vidmodes[i]->hdisplay;
745 y = height - vidmodes[i]->vdisplay;
746 dist = (x * x) + (y * y);
747 if (dist < best_dist)
756 // LordHavoc: changed from ActualWidth/ActualHeight =,
757 // to width/height =, so the window will take the full area of
759 width = vidmodes[best_fit]->hdisplay;
760 height = vidmodes[best_fit]->vdisplay;
762 // change to the mode
763 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
764 vidmode_active = true;
766 // Move the viewport to top left
767 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
774 // LordHavoc: save the visual for use in gamma ramp settings later
775 vidx11_visual = visinfo->visual;
777 /* window attributes */
778 attr.background_pixel = 0;
779 attr.border_pixel = 0;
780 // LordHavoc: save the colormap for later, too
781 vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
782 attr.event_mask = X_MASK;
785 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
786 attr.override_redirect = True;
787 attr.backing_store = NotUseful;
788 attr.save_under = False;
791 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
793 win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
794 XStoreName(vidx11_display, win, gamename);
795 XMapWindow(vidx11_display, win);
797 // LordHavoc: making the close button on a window do the right thing
798 // seems to involve this mess, sigh...
799 wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
800 XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
804 XMoveWindow(vidx11_display, win, 0, 0);
805 XRaiseWindow(vidx11_display, win);
806 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
807 XFlush(vidx11_display);
808 // Move the viewport to top left
809 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
812 XFlush(vidx11_display);
814 ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
816 qglXMakeCurrent(vidx11_display, win, ctx);
821 if (vid.conheight > height)
822 vid.conheight = height;
823 if (vid.conwidth > width)
824 vid.conwidth = width;
826 InitSig(); // trap evil signals
832 Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
835 void Sys_SendKeyEvents(void)
842 if (COM_CheckParm ("-nomouse"))
846 void IN_Shutdown(void)
855 void IN_Commands (void)
859 void IN_Move (usercmd_t *cmd)
862 IN_Mouse(cmd, mouse_x, mouse_y);