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 Atom wm_delete_window_atom;
  47
  48 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
  49 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
  50                     PointerMotionMask | ButtonMotionMask )
  51 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
  52
  53
  54 viddef_t        vid;                            // global video state
  55
  56 static qboolean         mouse_avail = true;
  57 static qboolean         mouse_active = false, usingmouse = false;
  58 static float    mouse_x, 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 num_vidmodes;
  72 static qboolean vidmode_active = false;
  73
  74 static Visual *vidx11_visual;
  75 static Colormap vidx11_colormap;
  76
  77 /*-----------------------------------------------------------------------*/
  78
  79 const char *gl_vendor;
  80 const char *gl_renderer;
  81 const char *gl_version;
  82 const char *gl_extensions;
  83
  84 /*-----------------------------------------------------------------------*/
  85 static int
  86 XLateKey(XKeyEvent *ev)
  87 {
  88         int key = 0;
  89         KeySym keysym;
  90
  91         keysym = XLookupKeysym(ev, 0);
  92
  93         switch(keysym)
  94         {
  95                 case XK_KP_Page_Up:     key = KP_PGUP; break;
  96                 case XK_Page_Up:        key = K_PGUP; break;
  97
  98                 case XK_KP_Page_Down:   key = KP_PGDN; break;
  99                 case XK_Page_Down:      key = K_PGDN; break;
 100
 101                 case XK_KP_Home:        key = KP_HOME; break;
 102                 case XK_Home:           key = K_HOME; break;
 103
 104                 case XK_KP_End:         key = KP_END; break;
 105                 case XK_End:            key = K_END; break;
 106
 107                 case XK_KP_Left:        key = KP_LEFTARROW; break;
 108                 case XK_Left:           key = K_LEFTARROW; break;
 109
 110                 case XK_KP_Right:       key = KP_RIGHTARROW; break;
 111                 case XK_Right:          key = K_RIGHTARROW; break;
 112
 113                 case XK_KP_Down:        key = KP_DOWNARROW; break;
 114                 case XK_Down:           key = K_DOWNARROW; break;
 115
 116                 case XK_KP_Up:          key = KP_UPARROW; break;
 117                 case XK_Up:                     key = K_UPARROW; break;
 118
 119                 case XK_Escape:         key = K_ESCAPE; break;
 120
 121                 case XK_KP_Enter:       key = KP_ENTER; break;
 122                 case XK_Return:         key = K_ENTER; break;
 123
 124                 case XK_Tab:            key = K_TAB; break;
 125
 126                 case XK_F1:                     key = K_F1; break;
 127                 case XK_F2:                     key = K_F2; break;
 128                 case XK_F3:                     key = K_F3; break;
 129                 case XK_F4:                     key = K_F4; break;
 130                 case XK_F5:                     key = K_F5; break;
 131                 case XK_F6:                     key = K_F6; break;
 132                 case XK_F7:                     key = K_F7; break;
 133                 case XK_F8:                     key = K_F8; break;
 134                 case XK_F9:                     key = K_F9; break;
 135                 case XK_F10:            key = K_F10; break;
 136                 case XK_F11:            key = K_F11; break;
 137                 case XK_F12:            key = K_F12; break;
 138
 139                 case XK_BackSpace:      key = K_BACKSPACE; break;
 140
 141                 case XK_KP_Delete:      key = KP_DEL; break;
 142                 case XK_Delete:         key = K_DEL; break;
 143
 144                 case XK_Pause:          key = K_PAUSE; break;
 145
 146                 case XK_Shift_L:
 147                 case XK_Shift_R:        key = K_SHIFT; break;
 148
 149                 case XK_Execute:
 150                 case XK_Control_L:
 151                 case XK_Control_R:      key = K_CTRL; break;
 152
 153                 case XK_Mode_switch:
 154                 case XK_Alt_L:
 155                 case XK_Meta_L:
 156                 case XK_Alt_R:
 157                 case XK_Meta_R:         key = K_ALT; break;
 158
 159                 case XK_Caps_Lock:      key = K_CAPSLOCK; break;
 160                 case XK_KP_Begin:       key = KP_5; break;
 161
 162                 case XK_Insert:         key = K_INS; break;
 163                 case XK_KP_Insert:      key = KP_INS; break;
 164
 165                 case XK_KP_Multiply:    key = KP_MULTIPLY; break;
 166                 case XK_KP_Add:         key = KP_PLUS; break;
 167                 case XK_KP_Subtract:    key = KP_MINUS; break;
 168                 case XK_KP_Divide:      key = KP_DIVIDE; break;
 169
 170                 /* For Sun keyboards */
 171                 case XK_F27:            key = K_HOME; break;
 172                 case XK_F29:            key = K_PGUP; break;
 173                 case XK_F33:            key = K_END; break;
 174                 case XK_F35:            key = K_PGDN; break;
 175
 176                 default:
 177                         if (keysym < 128)
 178                         {
 179                                 /* ASCII keys */
 180                                 key = keysym;
 181                                 if ((key >= 'A') && (key <= 'Z'))
 182                                         key = key + ('a' - 'A');
 183                         }
 184                         break;
 185         }
 186
 187         return key;
 188 }
 189
 190 static Cursor CreateNullCursor(Display *display, Window root)
 191 {
 192         Pixmap cursormask;
 193         XGCValues xgc;
 194         GC gc;
 195         XColor dummycolour;
 196         Cursor cursor;
 197
 198         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 199         xgc.function = GXclear;
 200         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 201         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 202         dummycolour.pixel = 0;
 203         dummycolour.red = 0;
 204         dummycolour.flags = 04;
 205         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 206         XFreePixmap(display,cursormask);
 207         XFreeGC(display,gc);
 208         return cursor;
 209 }
 210
 211 static void install_grabs(void)
 212 {
 213         XWindowAttributes attribs_1;
 214         XSetWindowAttributes attribs_2;
 215
 216         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 217         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 218         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 219
 220 // inviso cursor
 221         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 222
 223         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 224
 225         if (vid_dga.integer)
 226         {
 227                 int MajorVersion, MinorVersion;
 228
 229                 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 230                 {
 231                         // unable to query, probalby not supported
 232                         Con_Printf( "Failed to detect XF86DGA Mouse\n" );
 233                         vid_dga.integer = 0;
 234                 }
 235                 else
 236                 {
 237                         vid_dga.integer = 1;
 238                         XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 239                         XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 240                 }
 241         }
 242         else
 243                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
 244
 245         XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 246
 247         mouse_active = true;
 248         mouse_x = mouse_y = 0;
 249 }
 250
 251 static void uninstall_grabs(void)
 252 {
 253         if (!vidx11_display || !win)
 254                 return;
 255
 256         if (vid_dga.integer == 1)
 257                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 258
 259         XUngrabPointer(vidx11_display, CurrentTime);
 260         XUngrabKeyboard(vidx11_display, CurrentTime);
 261
 262 // inviso cursor
 263         XUndefineCursor(vidx11_display, win);
 264
 265         mouse_active = false;
 266 }
 267
 268 static void HandleEvents(void)
 269 {
 270         XEvent event;
 271         qboolean dowarp = false;
 272
 273         if (!vidx11_display)
 274                 return;
 275
 276         while (XPending(vidx11_display))
 277         {
 278                 XNextEvent(vidx11_display, &event);
 279
 280                 switch (event.type)
 281                 {
 282                 case KeyPress:
 283                         // key pressed
 284                         Key_Event(XLateKey(&event.xkey), true);
 285                         break;
 286
 287                 case KeyRelease:
 288                         // key released
 289                         Key_Event(XLateKey(&event.xkey), false);
 290                         break;
 291
 292                 case MotionNotify:
 293                         // mouse moved
 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 (!event.xmotion.send_event)
 305                                         {
 306                                                 mouse_x += event.xmotion.x - p_mouse_x;
 307                                                 mouse_y += event.xmotion.y - p_mouse_y;
 308                                                 if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
 309                                                         dowarp = true;
 310                                         }
 311                                         p_mouse_x = event.xmotion.x;
 312                                         p_mouse_y = event.xmotion.y;
 313                                 }
 314                         }
 315                         else
 316                                 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
 317                         break;
 318
 319                 case ButtonPress:
 320                         // mouse button pressed
 321                         switch(event.xbutton.button)
 322                         {
 323                         case 1:
 324                                 Key_Event(K_MOUSE1, true);
 325                                 break;
 326                         case 2:
 327                                 Key_Event(K_MOUSE3, true);
 328                                 break;
 329                         case 3:
 330                                 Key_Event(K_MOUSE2, true);
 331                                 break;
 332                         case 4:
 333                                 Key_Event(K_MWHEELUP, true);
 334                                 break;
 335                         case 5:
 336                                 Key_Event(K_MWHEELDOWN, true);
 337                                 break;
 338                 default:
 339                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
 340                                 break;
 341                         }
 342                         break;
 343
 344                 case ButtonRelease:
 345                         // mouse button released
 346                         switch(event.xbutton.button)
 347                         {
 348                         case 1:
 349                                 Key_Event(K_MOUSE1, false);
 350                                 break;
 351                         case 2:
 352                                 Key_Event(K_MOUSE3, false);
 353                                 break;
 354                         case 3:
 355                                 Key_Event(K_MOUSE2, false);
 356                                 break;
 357                         case 4:
 358                                 Key_Event(K_MWHEELUP, false);
 359                                 break;
 360                         case 5:
 361                                 Key_Event(K_MWHEELDOWN, false);
 362                                 break;
 363                 default:
 364                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
 365                                 break;
 366                         }
 367                         break;
 368
 369                 case CreateNotify:
 370                         // window created
 371                         win_x = event.xcreatewindow.x;
 372                         win_y = event.xcreatewindow.y;
 373                         break;
 374
 375                 case ConfigureNotify:
 376                         // window changed size/location
 377                         win_x = event.xconfigure.x;
 378                         win_y = event.xconfigure.y;
 379                         break;
 380                 case DestroyNotify:
 381                         // window has been destroyed
 382                         Sys_Quit();
 383                         break;
 384                 case ClientMessage:
 385                         // window manager messages
 386                         if ((event.xclient.format == 32) && (event.xclient.data.l[0] == wm_delete_window_atom))
 387                                 Sys_Quit();
 388                         break;
 389                 case MapNotify:
 390                         // window restored
 391                         vid_hidden = false;
 392                         break;
 393                 case UnmapNotify:
 394                         // window iconified/rolledup/whatever
 395                         vid_hidden = true;
 396                         break;
 397                 case FocusIn:
 398                         // window is now the input focus
 399                         break;
 400                 case FocusOut:
 401                         // window is no longer the input focus
 402                         break;
 403                 case EnterNotify:
 404                         // mouse entered window
 405                         break;
 406                 case LeaveNotify:
 407                         // mouse left window
 408                         break;
 409                 }
 410         }
 411
 412         if (dowarp)
 413         {
 414                 /* move the mouse to the window center again */
 415                 p_mouse_x = scr_width / 2;
 416                 p_mouse_y = scr_height / 2;
 417                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
 418         }
 419
 420 }
 421
 422 static void IN_DeactivateMouse( void )
 423 {
 424         if (!mouse_avail || !vidx11_display || !win)
 425                 return;
 426
 427         if (mouse_active)
 428         {
 429                 uninstall_grabs();
 430                 mouse_active = false;
 431         }
 432 }
 433
 434 static void IN_ActivateMouse( void )
 435 {
 436         if (!mouse_avail || !vidx11_display || !win)
 437                 return;
 438
 439         if (!mouse_active)
 440         {
 441                 mouse_x = mouse_y = 0; // don't spazz
 442                 install_grabs();
 443                 mouse_active = true;
 444         }
 445 }
 446
 447
 448 void VID_Shutdown(void)
 449 {
 450         if (!ctx || !vidx11_display)
 451                 return;
 452
 453         if (vidx11_display)
 454         {
 455                 uninstall_grabs();
 456
 457                 if (vidmode_active)
 458                         XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
 459                 if (win)
 460                         XDestroyWindow(vidx11_display, win);
 461                 XCloseDisplay(vidx11_display);
 462         }
 463         vidmode_active = false;
 464         vidx11_display = NULL;
 465         win = 0;
 466         ctx = NULL;
 467 }
 468
 469 void signal_handler(int sig)
 470 {
 471         printf("Received signal %d, exiting...\n", sig);
 472         Sys_Quit();
 473         exit(0);
 474 }
 475
 476 void InitSig(void)
 477 {
 478         signal(SIGHUP, signal_handler);
 479         signal(SIGINT, signal_handler);
 480         signal(SIGQUIT, signal_handler);
 481         signal(SIGILL, signal_handler);
 482         signal(SIGTRAP, signal_handler);
 483         signal(SIGIOT, signal_handler);
 484         signal(SIGBUS, signal_handler);
 485         signal(SIGFPE, signal_handler);
 486         signal(SIGSEGV, signal_handler);
 487         signal(SIGTERM, signal_handler);
 488 }
 489
 490 /*
 491 =================
 492 VID_GetWindowSize
 493 =================
 494 */
 495 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
 496 {
 497         *x = *y = 0;
 498         *width = scr_width;
 499         *height = scr_height;
 500 }
 501
 502 void VID_Finish (void)
 503 {
 504         int usemouse;
 505         if (r_render.integer)
 506         {
 507                 qglFinish();
 508                 glXSwapBuffers(vidx11_display, win);
 509         }
 510
 511 // handle the mouse state when windowed if that's changed
 512         usemouse = false;
 513         if (vid_mouse.integer && key_dest == key_game)
 514                 usemouse = true;
 515         if (vidmode_active)
 516                 usemouse = true;
 517         if (usemouse)
 518         {
 519                 if (!usingmouse)
 520                 {
 521                         usingmouse = true;
 522                         IN_ActivateMouse ();
 523                 }
 524         }
 525         else
 526         {
 527                 if (usingmouse)
 528                 {
 529                         usingmouse = false;
 530                         IN_DeactivateMouse ();
 531                 }
 532         }
 533 }
 534
 535 // LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
 536 // SDL than to simply use the XFree gamma ramp extension, but that affects the
 537 // whole screen even when the game window is inactive, this only affects the
 538 // screen while the window is active, very desirable behavior :)
 539 int VID_SetGamma(float prescale, float gamma, float scale, float base)
 540 {
 541 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 542 #if 1
 543         return FALSE;
 544 #else
 545         int i, ncolors, c;
 546         unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
 547         XColor xcmap[256];
 548         unsigned short ramp[256];
 549
 550         if (COM_CheckParm("-nogamma"))
 551                 return FALSE;
 552
 553         if (vidx11_visual->class != DirectColor)
 554         {
 555                 Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
 556                 return FALSE;
 557         }
 558
 559         Rmask = vidx11_visual->red_mask;
 560         Gmask = vidx11_visual->green_mask;
 561         Bmask = vidx11_visual->blue_mask;
 562
 563         Rshift = 0;
 564         Rloss = 8;
 565         if ((mask = Rmask))
 566         {
 567                 for (;!(mask & 1);mask >>= 1)
 568                         ++Rshift;
 569                 for (;(mask & 1);mask >>= 1)
 570                         --Rloss;
 571         }
 572         Gshift = 0;
 573         Gloss = 8;
 574         if ((mask = Gmask))
 575         {
 576                 for (;!(mask & 1);mask >>= 1)
 577                         ++Gshift;
 578                 for (;(mask & 1);mask >>= 1)
 579                         --Gloss;
 580         }
 581         Bshift = 0;
 582         Bloss = 8;
 583         if ((mask = Bmask))
 584         {
 585                 for (;!(mask & 1);mask >>= 1)
 586                         ++Bshift;
 587                 for (;(mask & 1);mask >>= 1)
 588                         --Bloss;
 589         }
 590
 591         BuildGammaTable16(prescale, gamma, scale, base, ramp);
 592
 593         // convert gamma ramp to palette (yes this seems odd)
 594         ncolors = vidx11_visual->map_entries;
 595         for (i = 0;i < ncolors;i++)
 596         {
 597                 c = (256 * i / ncolors);
 598                 xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
 599                 xcmap[i].red   = ramp[c];
 600                 xcmap[i].green = ramp[c];
 601                 xcmap[i].blue  = ramp[c];
 602                 xcmap[i].flags = (DoRed|DoGreen|DoBlue);
 603         }
 604         XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
 605         XSync(vidx11_display, false);
 606         // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
 607         return TRUE;
 608 #endif
 609 }
 610
 611 void VID_Init(void)
 612 {
 613         int i;
 614 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 615 #if 0
 616         int gammaattrib[] =
 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                 GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR,
 625                 None
 626         };
 627 #endif
 628         int nogammaattrib[] =
 629         {
 630                 GLX_RGBA,
 631                 GLX_RED_SIZE, 1,
 632                 GLX_GREEN_SIZE, 1,
 633                 GLX_BLUE_SIZE, 1,
 634                 GLX_DOUBLEBUFFER,
 635                 GLX_DEPTH_SIZE, 1,
 636                 None
 637         };
 638         int width = 640, height = 480;
 639         XSetWindowAttributes attr;
 640         unsigned long mask;
 641         Window root;
 642         XVisualInfo *visinfo;
 643         qboolean fullscreen = true;
 644         int MajorVersion, MinorVersion;
 645
 646         Cvar_RegisterVariable (&vid_dga);
 647         Cvar_RegisterVariable (&vid_dga_mouseaccel);
 648
 649 // interpret command-line params
 650
 651 // set vid parameters
 652         if ((i = COM_CheckParm("-window")) != 0)
 653                 fullscreen = false;
 654
 655         if ((i = COM_CheckParm("-width")) != 0)
 656                 width = atoi(com_argv[i+1]);
 657
 658         if ((i = COM_CheckParm("-height")) != 0)
 659                 height = atoi(com_argv[i+1]);
 660
 661         if ((i = COM_CheckParm("-conwidth")) != 0)
 662                 vid.conwidth = atoi(com_argv[i+1]);
 663         else
 664                 vid.conwidth = 640;
 665
 666         vid.conwidth &= 0xfff8; // make it a multiple of eight
 667
 668         if (vid.conwidth < 320)
 669                 vid.conwidth = 320;
 670
 671         // pick a conheight that matches with correct aspect
 672         vid.conheight = vid.conwidth*3 / 4;
 673
 674         if ((i = COM_CheckParm("-conheight")) != 0)
 675                 vid.conheight = atoi(com_argv[i+1]);
 676         if (vid.conheight < 200)
 677                 vid.conheight = 200;
 678
 679         if (!(vidx11_display = XOpenDisplay(NULL)))
 680         {
 681                 fprintf(stderr, "Error couldn't open the X display\n");
 682                 exit(1);
 683         }
 684
 685         scrnum = DefaultScreen(vidx11_display);
 686         root = RootWindow(vidx11_display, scrnum);
 687
 688         // Get video mode list
 689         MajorVersion = MinorVersion = 0;
 690         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 691                 vidmode_ext = false;
 692         else
 693         {
 694                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 695                 vidmode_ext = true;
 696         }
 697
 698         visinfo = NULL;
 699 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 700 #if 0
 701         if (!COM_CheckParm("-nogamma"))
 702                 visinfo = glXChooseVisual(vidx11_display, scrnum, gammaattrib);
 703 #endif
 704         if (!visinfo)
 705         {
 706                 visinfo = glXChooseVisual(vidx11_display, scrnum, nogammaattrib);
 707                 if (!visinfo)
 708                 {
 709                         fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
 710                         exit(1);
 711                 }
 712         }
 713
 714         if (vidmode_ext)
 715         {
 716                 int best_fit, best_dist, dist, x, y;
 717
 718                 XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
 719
 720                 // Are we going fullscreen?  If so, let's change video mode
 721                 if (fullscreen)
 722                 {
 723                         best_dist = 9999999;
 724                         best_fit = -1;
 725
 726                         for (i = 0; i < num_vidmodes; i++)
 727                         {
 728                                 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
 729                                         continue;
 730
 731                                 x = width - vidmodes[i]->hdisplay;
 732                                 y = height - vidmodes[i]->vdisplay;
 733                                 dist = (x * x) + (y * y);
 734                                 if (dist < best_dist)
 735                                 {
 736                                         best_dist = dist;
 737                                         best_fit = i;
 738                                 }
 739                         }
 740
 741                         if (best_fit != -1)
 742                         {
 743                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
 744                                 // to width/height =, so the window will take the full area of
 745                                 // the mode chosen
 746                                 width = vidmodes[best_fit]->hdisplay;
 747                                 height = vidmodes[best_fit]->vdisplay;
 748
 749                                 // change to the mode
 750                                 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
 751                                 vidmode_active = true;
 752
 753                                 // Move the viewport to top left
 754                                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 755                         }
 756                         else
 757                                 fullscreen = 0;
 758                 }
 759         }
 760
 761         // LordHavoc: save the visual for use in gamma ramp settings later
 762         vidx11_visual = visinfo->visual;
 763
 764         /* window attributes */
 765         attr.background_pixel = 0;
 766         attr.border_pixel = 0;
 767         // LordHavoc: save the colormap for later, too
 768         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
 769         attr.event_mask = X_MASK;
 770         if (vidmode_active)
 771         {
 772                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
 773                 attr.override_redirect = True;
 774                 attr.backing_store = NotUseful;
 775                 attr.save_under = False;
 776         }
 777         else
 778                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 779
 780         win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
 781         XStoreName(vidx11_display, win, gamename);
 782         XMapWindow(vidx11_display, win);
 783
 784         // LordHavoc: making the close button on a window do the right thing
 785         // seems to involve this mess, sigh...
 786         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
 787         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
 788
 789         if (vidmode_active)
 790         {
 791                 XMoveWindow(vidx11_display, win, 0, 0);
 792                 XRaiseWindow(vidx11_display, win);
 793                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 794                 XFlush(vidx11_display);
 795                 // Move the viewport to top left
 796                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 797         }
 798
 799         XFlush(vidx11_display);
 800
 801         ctx = glXCreateContext(vidx11_display, visinfo, NULL, True);
 802
 803         glXMakeCurrent(vidx11_display, win, ctx);
 804
 805         scr_width = width;
 806         scr_height = height;
 807
 808         if (vid.conheight > height)
 809                 vid.conheight = height;
 810         if (vid.conwidth > width)
 811                 vid.conwidth = width;
 812
 813         InitSig(); // trap evil signals
 814
 815         vid_hidden = false;
 816
 817         GL_Init();
 818
 819         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 820 }
 821
 822 void Sys_SendKeyEvents(void)
 823 {
 824         HandleEvents();
 825 }
 826
 827 void IN_Init(void)
 828 {
 829         if (COM_CheckParm ("-nomouse"))
 830                 mouse_avail = false;
 831 }
 832
 833 void IN_Shutdown(void)
 834 {
 835 }
 836
 837 /*
 838 ===========
 839 IN_Commands
 840 ===========
 841 */
 842 void IN_Commands (void)
 843 {
 844 }
 845
 846 void IN_Move (usercmd_t *cmd)
 847 {
 848         if (mouse_avail)
 849                 IN_Mouse(cmd, mouse_x, mouse_y);
 850         mouse_x = 0;
 851         mouse_y = 0;
 852 }
 853