vid_glx.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   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.
   8
   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.
  12
  13 See the GNU General Public License for more details.
  14
  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.
  18 */
  19
  20 #include <termios.h>
  21 #include <sys/ioctl.h>
  22 #include <sys/stat.h>
  23 #include <sys/vt.h>
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <signal.h>
  27
  28 #include <dlfcn.h>
  29
  30 #include "quakedef.h"
  31
  32 #include <GL/glx.h>
  33
  34 #include <X11/keysym.h>
  35 #include <X11/cursorfont.h>
  36
  37 #include <X11/extensions/XShm.h>
  38 #include <X11/extensions/xf86dga.h>
  39 #include <X11/extensions/xf86vmode.h>
  40
  41 static Display *vidx11_display = NULL;
  42 static int scrnum;
  43 static Window win;
  44 static GLXContext ctx = NULL;
  45
  46 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
  47 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
  48                     PointerMotionMask | ButtonMotionMask )
  49 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
  50
  51
  52 viddef_t        vid;                            // global video state
  53
  54 static qboolean         mouse_avail = true;
  55 static qboolean         mouse_active = false, usingmouse = false;
  56 // static qboolean              dga_active;
  57 static float    mouse_x, mouse_y;
  58 static float    old_mouse_x, old_mouse_y;
  59 static int p_mouse_x, p_mouse_y;
  60
  61 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
  62 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
  63
  64 qboolean vidmode_ext = false;
  65
  66 static int win_x, win_y;
  67
  68 static int scr_width, scr_height;
  69
  70 static XF86VidModeModeInfo **vidmodes;
  71 //static int default_dotclock_vidmode;
  72 static int num_vidmodes;
  73 static qboolean vidmode_active = false;
  74
  75 static Visual *vidx11_visual;
  76 static Colormap vidx11_colormap;
  77
  78 /*-----------------------------------------------------------------------*/
  79
  80 float           gldepthmin, gldepthmax;
  81
  82 const char *gl_vendor;
  83 const char *gl_renderer;
  84 const char *gl_version;
  85 const char *gl_extensions;
  86
  87 /*-----------------------------------------------------------------------*/
  88 static int
  89 XLateKey(XKeyEvent *ev/*, qboolean modified*/)
  90 {
  91 //      char tmp[2];
  92         int key = 0;
  93         KeySym keysym;
  94
  95         keysym = XLookupKeysym(ev, 0);
  96
  97         switch(keysym)
  98         {
  99                 case XK_KP_Page_Up:     key = KP_PGUP; break;
 100                 case XK_Page_Up:        key = K_PGUP; break;
 101
 102                 case XK_KP_Page_Down:   key = KP_PGDN; break;
 103                 case XK_Page_Down:      key = K_PGDN; break;
 104
 105                 case XK_KP_Home:        key = KP_HOME; break;
 106                 case XK_Home:           key = K_HOME; break;
 107
 108                 case XK_KP_End:         key = KP_END; break;
 109                 case XK_End:            key = K_END; break;
 110
 111                 case XK_KP_Left:        key = KP_LEFTARROW; break;
 112                 case XK_Left:           key = K_LEFTARROW; break;
 113
 114                 case XK_KP_Right:       key = KP_RIGHTARROW; break;
 115                 case XK_Right:          key = K_RIGHTARROW; break;
 116
 117                 case XK_KP_Down:        key = KP_DOWNARROW; break;
 118                 case XK_Down:           key = K_DOWNARROW; break;
 119
 120                 case XK_KP_Up:          key = KP_UPARROW; break;
 121                 case XK_Up:                     key = K_UPARROW; break;
 122
 123                 case XK_Escape:         key = K_ESCAPE; break;
 124
 125                 case XK_KP_Enter:       key = KP_ENTER; break;
 126                 case XK_Return:         key = K_ENTER; break;
 127
 128                 case XK_Tab:            key = K_TAB; break;
 129
 130                 case XK_F1:                     key = K_F1; break;
 131                 case XK_F2:                     key = K_F2; break;
 132                 case XK_F3:                     key = K_F3; break;
 133                 case XK_F4:                     key = K_F4; break;
 134                 case XK_F5:                     key = K_F5; break;
 135                 case XK_F6:                     key = K_F6; break;
 136                 case XK_F7:                     key = K_F7; break;
 137                 case XK_F8:                     key = K_F8; break;
 138                 case XK_F9:                     key = K_F9; break;
 139                 case XK_F10:            key = K_F10; break;
 140                 case XK_F11:            key = K_F11; break;
 141                 case XK_F12:            key = K_F12; break;
 142
 143                 case XK_BackSpace:      key = K_BACKSPACE; break;
 144
 145                 case XK_KP_Delete:      key = KP_DEL; break;
 146                 case XK_Delete:         key = K_DEL; break;
 147
 148                 case XK_Pause:          key = K_PAUSE; break;
 149
 150                 case XK_Shift_L:
 151                 case XK_Shift_R:        key = K_SHIFT; break;
 152
 153                 case XK_Execute:
 154                 case XK_Control_L:
 155                 case XK_Control_R:      key = K_CTRL; break;
 156
 157                 case XK_Mode_switch:
 158                 case XK_Alt_L:
 159                 case XK_Meta_L:
 160                 case XK_Alt_R:
 161                 case XK_Meta_R:         key = K_ALT; break;
 162
 163                 case XK_Caps_Lock:      key = K_CAPSLOCK; break;
 164                 case XK_KP_Begin:       key = KP_5; break;
 165
 166                 case XK_Insert:         key = K_INS; break;
 167                 case XK_KP_Insert:      key = KP_INS; break;
 168
 169                 case XK_KP_Multiply:    key = KP_MULTIPLY; break;
 170                 case XK_KP_Add:         key = KP_PLUS; break;
 171                 case XK_KP_Subtract:    key = KP_MINUS; break;
 172                 case XK_KP_Divide:      key = KP_DIVIDE; break;
 173
 174                 /* For Sun keyboards */
 175                 case XK_F27:            key = K_HOME; break;
 176                 case XK_F29:            key = K_PGUP; break;
 177                 case XK_F33:            key = K_END; break;
 178                 case XK_F35:            key = K_PGDN; break;
 179
 180                 default:
 181                         if (keysym < 128)
 182                         {
 183                                 /* ASCII keys */
 184                                 key = keysym;
 185                                 if (/*!modified && */((key >= 'A') && (key <= 'Z')))
 186                                         key = key + ('a' - 'A');
 187                         }
 188                         break;
 189         }
 190
 191         return key;
 192 }
 193
 194 static Cursor CreateNullCursor(Display *display, Window root)
 195 {
 196         Pixmap cursormask;
 197         XGCValues xgc;
 198         GC gc;
 199         XColor dummycolour;
 200         Cursor cursor;
 201
 202         cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
 203         xgc.function = GXclear;
 204         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 205         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 206         dummycolour.pixel = 0;
 207         dummycolour.red = 0;
 208         dummycolour.flags = 04;
 209         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 210         XFreePixmap(display,cursormask);
 211         XFreeGC(display,gc);
 212         return cursor;
 213 }
 214
 215 static void install_grabs(void)
 216 {
 217         XWindowAttributes attribs_1;
 218         XSetWindowAttributes attribs_2;
 219
 220         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 221         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 222         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 223
 224 // inviso cursor
 225         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 226
 227         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 228
 229         if (vid_dga.integer)
 230         {
 231                 int MajorVersion, MinorVersion;
 232
 233                 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 234                 {
 235                         // unable to query, probalby not supported
 236                         Con_Printf( "Failed to detect XF86DGA Mouse\n" );
 237                         vid_dga.integer = 0;
 238                 }
 239                 else
 240                 {
 241                         vid_dga.integer = 1;
 242                         XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 243                         XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 244                 }
 245         }
 246         else
 247                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
 248
 249         XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 250
 251         mouse_active = true;
 252         mouse_x = mouse_y = 0;
 253
 254 //      XSync(vidx11_display, True);
 255 }
 256
 257 static void uninstall_grabs(void)
 258 {
 259         if (!vidx11_display || !win)
 260                 return;
 261
 262         if (vid_dga.integer == 1)
 263                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 264
 265         XUngrabPointer(vidx11_display, CurrentTime);
 266         XUngrabKeyboard(vidx11_display, CurrentTime);
 267
 268 // inviso cursor
 269         XUndefineCursor(vidx11_display, win);
 270
 271         mouse_active = false;
 272 }
 273
 274 static void HandleEvents(void)
 275 {
 276         XEvent event;
 277 //      KeySym ks;
 278         qboolean dowarp = false;
 279
 280         if (!vidx11_display)
 281                 return;
 282
 283         while (XPending(vidx11_display))
 284         {
 285                 XNextEvent(vidx11_display, &event);
 286
 287                 switch (event.type)
 288                 {
 289                 case KeyPress:
 290                 case KeyRelease:
 291                         Key_Event(XLateKey(&event.xkey), event.type == KeyPress);
 292                         break;
 293
 294                 case MotionNotify:
 295                         if (usingmouse)
 296                         {
 297                                 if (vid_dga.integer == 1)
 298                                 {
 299                                         mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
 300                                         mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
 301                                 }
 302                                 else
 303                                 {
 304                                         /*
 305                                         if (!p_mouse_x && !p_mouse_y)
 306                                         {
 307                                                 Con_Printf("event->xmotion.x: %d\n", event.xmotion.x);
 308                                                 Con_Printf("event->xmotion.y: %d\n", event.xmotion.y);
 309                                         }
 310                                         */
 311                                         //if (usingmouse)
 312                                         {
 313                                                 if (!event.xmotion.send_event)
 314                                                 {
 315                                                         mouse_x += event.xmotion.x - p_mouse_x;
 316                                                         mouse_y += event.xmotion.y - p_mouse_y;
 317                                                         if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
 318                                                                 dowarp = true;
 319                                                 }
 320                                         }
 321                                         /*
 322                                         else
 323                                         {
 324                                                 mouse_x += (event.xmotion.x - p_mouse_x);
 325                                                 mouse_y += (event.xmotion.y - p_mouse_y);
 326                                         }
 327                                         */
 328                                         p_mouse_x = event.xmotion.x;
 329                                         p_mouse_y = event.xmotion.y;
 330                                 }
 331                         }
 332                         else
 333                                 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
 334                         break;
 335
 336                 case ButtonPress:
 337                         switch(event.xbutton.button)
 338                         {
 339                         case 1:
 340                                 Key_Event(K_MOUSE1, true);
 341                                 break;
 342                         case 2:
 343                                 Key_Event(K_MOUSE3, true);
 344                                 break;
 345                         case 3:
 346                                 Key_Event(K_MOUSE2, true);
 347                                 break;
 348                         case 4:
 349                                 Key_Event(K_MWHEELUP, true);
 350                                 break;
 351                         case 5:
 352                                 Key_Event(K_MWHEELDOWN, true);
 353                                 break;
 354                 default:
 355                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
 356                                 break;
 357                         }
 358                         break;
 359
 360                 case ButtonRelease:
 361                         switch(event.xbutton.button)
 362                         {
 363                         case 1:
 364                                 Key_Event(K_MOUSE1, false);
 365                                 break;
 366                         case 2:
 367                                 Key_Event(K_MOUSE3, false);
 368                                 break;
 369                         case 3:
 370                                 Key_Event(K_MOUSE2, false);
 371                                 break;
 372                         case 4:
 373                                 Key_Event(K_MWHEELUP, false);
 374                                 break;
 375                         case 5:
 376                                 Key_Event(K_MWHEELDOWN, false);
 377                                 break;
 378                 default:
 379                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
 380                                 break;
 381                         }
 382                         break;
 383
 384                 case CreateNotify :
 385                         win_x = event.xcreatewindow.x;
 386                         win_y = event.xcreatewindow.y;
 387                         break;
 388
 389                 case ConfigureNotify :
 390                         win_x = event.xconfigure.x;
 391                         win_y = event.xconfigure.y;
 392                         break;
 393                 }
 394         }
 395
 396         if (dowarp)
 397         {
 398                 /* move the mouse to the window center again */
 399                 p_mouse_x = scr_width / 2;
 400                 p_mouse_y = scr_height / 2;
 401                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
 402         }
 403
 404 }
 405
 406 static void IN_DeactivateMouse( void )
 407 {
 408         if (!mouse_avail || !vidx11_display || !win)
 409                 return;
 410
 411         if (mouse_active)
 412         {
 413                 uninstall_grabs();
 414                 mouse_active = false;
 415         }
 416 }
 417
 418 static void IN_ActivateMouse( void )
 419 {
 420         if (!mouse_avail || !vidx11_display || !win)
 421                 return;
 422
 423         if (!mouse_active)
 424         {
 425                 mouse_x = mouse_y = 0; // don't spazz
 426                 install_grabs();
 427                 mouse_active = true;
 428         }
 429 }
 430
 431
 432 void VID_Shutdown(void)
 433 {
 434         if (!ctx || !vidx11_display)
 435                 return;
 436
 437         if (vidx11_display)
 438         {
 439                 uninstall_grabs();
 440
 441                 if (vidmode_active)
 442                         XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
 443 /* Disabled, causes a segfault during shutdown.
 444                 if (ctx)
 445                         glXDestroyContext(vidx11_display, ctx);
 446 */
 447                 if (win)
 448                         XDestroyWindow(vidx11_display, win);
 449                 XCloseDisplay(vidx11_display);
 450         }
 451         vidmode_active = false;
 452         vidx11_display = NULL;
 453         win = 0;
 454         ctx = NULL;
 455 }
 456
 457 void signal_handler(int sig)
 458 {
 459         printf("Received signal %d, exiting...\n", sig);
 460         Sys_Quit();
 461         exit(0);
 462 }
 463
 464 void InitSig(void)
 465 {
 466         signal(SIGHUP, signal_handler);
 467         signal(SIGINT, signal_handler);
 468         signal(SIGQUIT, signal_handler);
 469         signal(SIGILL, signal_handler);
 470         signal(SIGTRAP, signal_handler);
 471         signal(SIGIOT, signal_handler);
 472         signal(SIGBUS, signal_handler);
 473         signal(SIGFPE, signal_handler);
 474         signal(SIGSEGV, signal_handler);
 475         signal(SIGTERM, signal_handler);
 476 }
 477
 478 /*
 479 =================
 480 VID_GetWindowSize
 481 =================
 482 */
 483 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
 484 {
 485         *x = *y = 0;
 486         *width = scr_width;
 487         *height = scr_height;
 488 }
 489
 490 void VID_Finish (void)
 491 {
 492         int usemouse;
 493         if (r_render.integer)
 494         {
 495                 glFinish();
 496                 glXSwapBuffers(vidx11_display, win);
 497         }
 498
 499 // handle the mouse state when windowed if that's changed
 500         usemouse = false;
 501         if (vid_mouse.integer && key_dest == key_game)
 502                 usemouse = true;
 503         if (vidmode_active)
 504                 usemouse = true;
 505         if (usemouse)
 506         {
 507                 if (!usingmouse)
 508                 {
 509                         usingmouse = true;
 510                         IN_ActivateMouse ();
 511                 }
 512         }
 513         else
 514         {
 515                 if (usingmouse)
 516                 {
 517                         usingmouse = false;
 518                         IN_DeactivateMouse ();
 519                 }
 520         }
 521 }
 522
 523 // LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
 524 // SDL than to simply use the XFree gamma ramp extension, but that affects the
 525 // whole screen even when the game window is inactive, this only affects the
 526 // screen while the window is active, very desirable behavior :)
 527 int VID_SetGamma(float prescale, float gamma, float scale, float base)
 528 {
 529 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 530 #if 1
 531         return FALSE;
 532 #else
 533         int i, ncolors, c;
 534         unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
 535         XColor xcmap[256];
 536         unsigned short ramp[256];
 537
 538         if (COM_CheckParm("-nogamma"))
 539                 return FALSE;
 540
 541         if (vidx11_visual->class != DirectColor)
 542         {
 543                 Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
 544                 return FALSE;
 545         }
 546
 547         Rmask = vidx11_visual->red_mask;
 548         Gmask = vidx11_visual->green_mask;
 549         Bmask = vidx11_visual->blue_mask;
 550
 551         Rshift = 0;
 552         Rloss = 8;
 553         if ((mask = Rmask))
 554         {
 555                 for (;!(mask & 1);mask >>= 1)
 556                         ++Rshift;
 557                 for (;(mask & 1);mask >>= 1)
 558                         --Rloss;
 559         }
 560         Gshift = 0;
 561         Gloss = 8;
 562         if ((mask = Gmask))
 563         {
 564                 for (;!(mask & 1);mask >>= 1)
 565                         ++Gshift;
 566                 for (;(mask & 1);mask >>= 1)
 567                         --Gloss;
 568         }
 569         Bshift = 0;
 570         Bloss = 8;
 571         if ((mask = Bmask))
 572         {
 573                 for (;!(mask & 1);mask >>= 1)
 574                         ++Bshift;
 575                 for (;(mask & 1);mask >>= 1)
 576                         --Bloss;
 577         }
 578
 579         BuildGammaTable16(prescale, gamma, scale, base, ramp);
 580
 581         // convert gamma ramp to palette (yes this seems odd)
 582         ncolors = vidx11_visual->map_entries;
 583         for (i = 0;i < ncolors;i++)
 584         {
 585                 c = (256 * i / ncolors);
 586                 xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
 587                 xcmap[i].red   = ramp[c];
 588                 xcmap[i].green = ramp[c];
 589                 xcmap[i].blue  = ramp[c];
 590                 xcmap[i].flags = (DoRed|DoGreen|DoBlue);
 591         }
 592         XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
 593         XSync(vidx11_display, false);
 594         // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
 595         return TRUE;
 596 #endif
 597 }
 598
 599 void VID_Init(void)
 600 {
 601         int i;
 602 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 603 #if 0
 604         int gammaattrib[] =
 605         {
 606                 GLX_RGBA,
 607                 GLX_RED_SIZE, 1,
 608                 GLX_GREEN_SIZE, 1,
 609                 GLX_BLUE_SIZE, 1,
 610                 GLX_DOUBLEBUFFER,
 611                 GLX_DEPTH_SIZE, 1,
 612                 GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR,
 613                 None
 614         };
 615 #endif
 616         int nogammaattrib[] =
 617         {
 618                 GLX_RGBA,
 619                 GLX_RED_SIZE, 1,
 620                 GLX_GREEN_SIZE, 1,
 621                 GLX_BLUE_SIZE, 1,
 622                 GLX_DOUBLEBUFFER,
 623                 GLX_DEPTH_SIZE, 1,
 624                 None
 625         };
 626 //      char    gldir[MAX_OSPATH];
 627         int width = 640, height = 480;
 628         XSetWindowAttributes attr;
 629         unsigned long mask;
 630         Window root;
 631         XVisualInfo *visinfo;
 632         qboolean fullscreen = true;
 633         int MajorVersion, MinorVersion;
 634
 635         Cvar_RegisterVariable (&vid_dga);
 636         Cvar_RegisterVariable (&vid_dga_mouseaccel);
 637
 638 // interpret command-line params
 639
 640 // set vid parameters
 641         if ((i = COM_CheckParm("-window")) != 0)
 642                 fullscreen = false;
 643
 644         if ((i = COM_CheckParm("-width")) != 0)
 645                 width = atoi(com_argv[i+1]);
 646
 647         if ((i = COM_CheckParm("-height")) != 0)
 648                 height = atoi(com_argv[i+1]);
 649
 650         if ((i = COM_CheckParm("-conwidth")) != 0)
 651                 vid.conwidth = atoi(com_argv[i+1]);
 652         else
 653                 vid.conwidth = 640;
 654
 655         vid.conwidth &= 0xfff8; // make it a multiple of eight
 656
 657         if (vid.conwidth < 320)
 658                 vid.conwidth = 320;
 659
 660         // pick a conheight that matches with correct aspect
 661         vid.conheight = vid.conwidth*3 / 4;
 662
 663         if ((i = COM_CheckParm("-conheight")) != 0)
 664                 vid.conheight = atoi(com_argv[i+1]);
 665         if (vid.conheight < 200)
 666                 vid.conheight = 200;
 667
 668         if (!(vidx11_display = XOpenDisplay(NULL)))
 669         {
 670                 fprintf(stderr, "Error couldn't open the X display\n");
 671                 exit(1);
 672         }
 673
 674         scrnum = DefaultScreen(vidx11_display);
 675         root = RootWindow(vidx11_display, scrnum);
 676
 677         // Get video mode list
 678         MajorVersion = MinorVersion = 0;
 679         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 680                 vidmode_ext = false;
 681         else
 682         {
 683                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 684                 vidmode_ext = true;
 685         }
 686
 687         visinfo = NULL;
 688 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 689 #if 0
 690         if (!COM_CheckParm("-nogamma"))
 691                 visinfo = glXChooseVisual(vidx11_display, scrnum, gammaattrib);
 692 #endif
 693         if (!visinfo)
 694         {
 695                 visinfo = glXChooseVisual(vidx11_display, scrnum, nogammaattrib);
 696                 if (!visinfo)
 697                 {
 698                         fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
 699                         exit(1);
 700                 }
 701         }
 702
 703         if (vidmode_ext)
 704         {
 705                 int best_fit, best_dist, dist, x, y;
 706
 707                 XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
 708
 709                 // Are we going fullscreen?  If so, let's change video mode
 710                 if (fullscreen)
 711                 {
 712                         best_dist = 9999999;
 713                         best_fit = -1;
 714
 715                         for (i = 0; i < num_vidmodes; i++)
 716                         {
 717                                 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
 718                                         continue;
 719
 720                                 x = width - vidmodes[i]->hdisplay;
 721                                 y = height - vidmodes[i]->vdisplay;
 722                                 dist = (x * x) + (y * y);
 723                                 if (dist < best_dist)
 724                                 {
 725                                         best_dist = dist;
 726                                         best_fit = i;
 727                                 }
 728                         }
 729
 730                         if (best_fit != -1)
 731                         {
 732                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
 733                                 // to width/height =, so the window will take the full area of
 734                                 // the mode chosen
 735                                 width = vidmodes[best_fit]->hdisplay;
 736                                 height = vidmodes[best_fit]->vdisplay;
 737
 738                                 // change to the mode
 739                                 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
 740                                 vidmode_active = true;
 741
 742                                 // Move the viewport to top left
 743                                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 744                         }
 745                         else
 746                                 fullscreen = 0;
 747                 }
 748         }
 749
 750         // LordHavoc: save the visual for use in gamma ramp settings later
 751         vidx11_visual = visinfo->visual;
 752
 753         /* window attributes */
 754         attr.background_pixel = 0;
 755         attr.border_pixel = 0;
 756         // LordHavoc: save the colormap for later, too
 757         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
 758         attr.event_mask = X_MASK;
 759         if (vidmode_active)
 760         {
 761                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
 762                 attr.override_redirect = True;
 763                 attr.backing_store = NotUseful;
 764                 attr.save_under = False;
 765         }
 766         else
 767                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 768
 769         win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
 770         XStoreName(vidx11_display, win, gamename);
 771         XMapWindow(vidx11_display, win);
 772
 773         if (vidmode_active)
 774         {
 775                 XMoveWindow(vidx11_display, win, 0, 0);
 776                 XRaiseWindow(vidx11_display, win);
 777                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 778                 XFlush(vidx11_display);
 779                 // Move the viewport to top left
 780                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 781         }
 782
 783         XFlush(vidx11_display);
 784
 785         ctx = glXCreateContext(vidx11_display, visinfo, NULL, True);
 786
 787         glXMakeCurrent(vidx11_display, win, ctx);
 788
 789         scr_width = width;
 790         scr_height = height;
 791
 792         if (vid.conheight > height)
 793                 vid.conheight = height;
 794         if (vid.conwidth > width)
 795                 vid.conwidth = width;
 796
 797         InitSig(); // trap evil signals
 798
 799         GL_Init();
 800
 801         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 802
 803         // force a surface cache flush
 804 //      vid.recalc_refdef = 1;
 805 }
 806
 807 void Sys_SendKeyEvents(void)
 808 {
 809         HandleEvents();
 810 }
 811
 812 void IN_Init(void)
 813 {
 814         if (COM_CheckParm ("-nomouse"))
 815                 mouse_avail = false;
 816 }
 817
 818 void IN_Shutdown(void)
 819 {
 820 }
 821
 822 /*
 823 ===========
 824 IN_Commands
 825 ===========
 826 */
 827 void IN_Commands (void)
 828 {
 829 }
 830
 831 void IN_Move (usercmd_t *cmd)
 832 {
 833         if (mouseavail)
 834                 In_Mouse(cmd, mouse_x, mouse_y);
 835         mouse_x = 0;
 836         mouse_y = 0;
 837 }
 838
 839