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